| 1801 to 1832 |
| 1832 to 1868 |
| 1868 to 1885 |
| 1885 to 1918 |
| 1918 to 1950 |
| 1950 to 1974 |
| 1974 to 1983 |
| 1983 to 1997 |
| 1997 to present |
South West (43)
Cornwall (5)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Bodmin | Co. Conservative | Liberal | Liberal | Conservative | Liberal | Liberal | Conservative | Conservative |
| Camborne | Liberal | National Liberal | Independent Liberal | Constitutionalist | Liberal | Conservative | Conservative | Conservative |
| Cornwall North | Liberal | National Liberal | Liberal | Conservative | Liberal | Liberal | Liberal | Liberal |
| Penryn and Falmouth | Co. Conservative | Conservative | Liberal | Conservative | Liberal | Conservative | Conservative | Labour |
| St Ives | Coalition Liberal | Conservative | Liberal | Conservative | Liberal | Liberal National | Liberal National | Liberal National |
Devon (11)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Barnstaple | Coalition Liberal | Conservative | Liberal | Conservative | Conservative | Conservative | Liberal | Conservative |
| Exeter | Co. Conservative | Conservative | Conservative | Conservative | Ind. Conservative | Conservative | Conservative | Conservative |
| Honiton | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Plymouth Devonport | Co. Conservative | Conservative | Liberal | Liberal | Liberal | Liberal National | Liberal National | Labour |
| Plymouth Drake | Co. Conservative | Conservative | Conservative | Conservative | Labour | Conservative | Conservative | Labour |
| Plymouth Sutton | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Labour |
| South Molton | Coalition Liberal | Liberal | Liberal | Conservative | Liberal | Liberal National | Liberal National | Liberal National |
| Tavistock | Co. Conservative | Liberal | Liberal | Conservative | Conservative | Conservative | Conservative | Conservative |
| Tiverton | Co. Conservative | Conservative | Liberal | Conservative | Conservative | Conservative | Conservative | Conservative |
| Torquay | Co. Conservative | Conservative | Liberal | Conservative | Conservative | Conservative | Conservative | Conservative |
| Totnes | Co. Conservative | Conservative | Liberal | Conservative | Conservative | Conservative | Conservative | Conservative |
Somerset (7)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Bath | Co. Conservative | Conservative | Liberal | Conservative | Conservative | Conservative | Conservative | Conservative |
| Bridgwater | Co. Conservative | Conservative | Liberal | Conservative | Conservative | Conservative | Conservative | Ind. Progressive |
| Frome | Co. Conservative | Conservative | Labour | Conservative | Labour | Conservative | Conservative | Labour |
| Taunton | Co. Conservative | Liberal | Liberal | Conservative | Conservative | Conservative | Conservative | Labour |
| Wells | Co. Conservative | Conservative | Liberal | Conservative | Conservative | Conservative | Conservative | Conservative |
| Weston-super-Mare | Co. Conservative | Conservative | Liberal | Conservative | Conservative | Conservative | Conservative | Conservative |
| Yeovil | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
Dorset (4)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Dorset East | Coalition Liberal | Ind. Conservative | Conservative | Conservative | Liberal | Conservative | Conservative | Conservative |
| Dorset North | Co. Conservative | National Liberal | Liberal | Conservative | Conservative | Conservative | Conservative | Liberal |
| Dorset South | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Dorset West | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
Gloucestershire (11)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Bristol Central | Co. Conservative | Conservative | Conservative | Conservative | Labour | Conservative | Conservative | Labour |
| Bristol East | Coalition Liberal | National Liberal | Labour | Labour | Labour | Labour | Labour | Labour |
| Bristol North | Coalition Liberal | Liberal | Labour | Liberal | Labour | Liberal | Liberal | Labour Co-op |
| Bristol South | Coalition Liberal | National Liberal | Liberal | Liberal | Labour | Conservative | Labour | Labour |
| Bristol West | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Cheltenham | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Ind. Conservative |
| Cirencester and Tewkesbury | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Forest of Dean | Labour | Labour | Labour | Labour | Labour | National Labour | Labour | Labour |
| Gloucester | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Labour |
| Stroud | Coalition Liberal | Conservative | Liberal | Conservative | Conservative | Conservative | Conservative | Labour |
| Thornbury | Coalition Liberal | Conservative | Liberal | Conservative | Conservative | Conservative | Conservative | Labour |
Wiltshire (5)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Chippenham | Co. Conservative | Liberal | Liberal | Conservative | Conservative | Conservative | Conservative | Conservative |
| Devizes | Co. Conservative | Conservative | Liberal | Conservative | Conservative | Conservative | Conservative | Conservative |
| Salisbury | Co. Conservative | Conservative | Liberal | Conservative | Conservative | Conservative | Conservative | Conservative |
| Swindon | Co. Conservative | Conservative | Conservative | Conservative | Labour | Conservative | Conservative | Labour |
| Westbury | Co. Conservative | Liberal | Liberal | Conservative | Conservative | Conservative | Conservative | Conservative |
South East (including London) (148; 161 in 1945)
Oxfordshire (3)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Banbury | Coalition Liberal | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Henley | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Oxford | Co. Conservative | Liberal | Liberal | Conservative | Conservative | Conservative | Conservative | Conservative |
Buckinghamshire (3; 4 in 1945)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Aylesbury | Co. Conservative | Conservative | Liberal | Conservative | Conservative | Conservative | Conservative | Conservative |
| Buckingham | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Labour |
| Eton and Slough | Labour | |||||||
| Wycombe | Co. Conservative | Conservative | Liberal | Conservative | Conservative | Conservative | Conservative | Labour |
Berkshire (4)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Abingdon | Co. Conservative | Conservative | Liberal | Conservative | Conservative | Conservative | Conservative | Conservative |
| Newbury | Co. Conservative | Conservative | Liberal | Conservative | Conservative | Conservative | Conservative | Conservative |
| Reading | Co. Conservative | Conservative | Labour | Conservative | Labour | Conservative | Conservative | Labour |
| Windsor | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
Hampshire (12)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Aldershot | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Basingstoke | Co. Conservative | Conservative | Liberal | Conservative | Conservative | Conservative | Conservative | Conservative |
| Bournemouth | National Party | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Fareham | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| New Forest and Christchurch | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Petersfield | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Portsmouth Central | Liberal | Conservative | Liberal | Conservative | Labour | Conservative | Conservative | Labour |
| Portsmouth North | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Labour |
| Portsmouth South | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Southampton | Coalition Liberal | Conservative | Conservative | Conservative | Labour | Liberal National | Liberal National | Labour |
| Coalition Liberal | Conservative | Conservative | Conservative | Labour | Conservative | Conservative | Labour | |
| Winchester | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Labour |
Isle of Wight (1)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Isle of Wight | Co. Conservative | Liberal | Liberal | Conservative | Conservative | Conservative | Conservative | Conservative |
Surrey (12; 14 in 1945)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Chertsey | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Croydon North | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Croydon South | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Labour |
| Epsom | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Farnham | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Guildford | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Kingston upon Thames | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Mitcham | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Labour |
| Carshalton | Conservative | |||||||
| Sutton and Cheam | Conservative | |||||||
| Reigate | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Richmond (Surrey) | Co. Conservative | Ind. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Surrey East | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Wimbledon | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Labour |
Sussex (9; 10 in 1945)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Brighton
(Two members) |
Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | |
| Chichester | Co. Conservative | Conservative | Liberal | Conservative | Conservative | Conservative | Conservative | Conservative |
| Eastbourne | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| East Grinstead | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Hastings | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Horsham and Worthing | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | N/A |
| Horsham | Conservative | |||||||
| Worthing | Conservative | |||||||
| Lewes | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Rye | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
Kent (15; 17 in 1945)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Ashford | Co. Conservative | Conservative | Conservative | Conservative | Liberal | Conservative | Conservative | Conservative |
| Bexley | Labour | |||||||
| Orpington | Conservative | |||||||
| Bromley | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Canterbury | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Chatham | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Labour | Conservative | Labour |
| Chislehurst | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Labour |
| Dartford | Coalition Liberal | Constitutionalist | Labour | Conservative | Labour | Conservative | Conservative | Labour Co-op |
| Dover | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Labour |
| Faversham | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Labour |
| Gillingham | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Labour |
| Gravesend | Co. Conservative | Conservative | Labour | Conservative | Conservative | Conservative | Conservative | Labour |
| Hythe | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Isle of Thanet | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Maidstone | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Sevenoaks | Co. Conservative | Conservative | Liberal | Conservative | Conservative | Conservative | Conservative | Conservative |
| Tonbridge | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
Middlesex (17; 24 in 1945)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Acton | Co. Conservative | Conservative | Conservative | Conservative | Labour | Conservative | Conservative | Labour |
| Brentford and Chiswick | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Labour |
| Ealing | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | N/A |
| Ealing East | Conservative | |||||||
| Ealing West | Labour | |||||||
| Edmonton | Co. Conservative | Labour | Labour | Labour | Labour | Conservative | Labour Co-op | Labour |
| Enfield | Co. Conservative | Conservative | Labour | Conservative | Labour | Conservative | Conservative | Labour |
| Finchley | Co. Conservative | Conservative | Liberal | Conservative | Conservative | Conservative | Conservative | Conservative |
| Harrow | Co. Conservative | Independent | Independent | Conservative | Conservative | Conservative | Conservative | N/A |
| Harrow East | Labour | |||||||
| Harrow West | Conservative | |||||||
| Hendon | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | N/A |
| Hendon North | Labour | |||||||
| Hendon South | Conservative | |||||||
| Heston and Isleworth | Labour | |||||||
| Hornsey | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Southall | Labour | |||||||
| Spelthorne | Liberal | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Labour |
| Tottenham North | Co. Conservative | Co-operative | Co-operative | Co-operative | Labour Co-op | Conservative | Labour Co-op | Labour Co-op |
| Tottenham South | Conservative | Conservative | Labour | Conservative | Labour | National Labour | Labour | Labour |
| Twickenham | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Uxbridge | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Labour Co-op |
| Wembley North | Labour | |||||||
| Wembley South | Labour | |||||||
| Willesden East | Co. Conservative | Conservative | Liberal | Conservative | Conservative | Conservative | Conservative | Labour |
| Willesden West | Co. Conservative | Conservative | Labour | Labour | Labour | Conservative | Labour | Labour |
| Wood Green | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
County of London (62)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Balham and Tooting | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Labour |
| Battersea North | Coalition Liberal | Communist | Liberal | Communist | Labour | Conservative | Labour | Labour |
| Battersea South | Co. Conservative | Conservative | Conservative | Conservative | Labour | Conservative | Conservative | Labour Co-op |
| Bermondsey West | Liberal | Labour | Liberal | Labour | Labour | Labour | Labour | Labour |
| Bethnal Green North-East | Coalition Liberal | Liberal | Labour | Labour | Liberal | Liberal | Labour Co-op | Labour Co-op |
| Bethnal Green South-West | Co. Conservative | Liberal | Liberal | Liberal | Liberal | Liberal | Liberal | Labour Co-op |
| Bow and Bromley | Co. Conservative | Labour | Labour | Labour | Labour | Labour | Labour | Labour |
| Brixton | Co. Conservative | Conservative | Liberal | Conservative | Conservative | Conservative | Conservative | Labour |
| Camberwell North | Co. Conservative | Labour | Labour | Labour | Labour | Conservative | Labour | Labour |
| Camberwell North-West | Coalition Liberal | National Liberal | Liberal | Conservative | Labour | Conservative | Conservative | Labour |
| Chelsea | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Clapham | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Labour |
| Deptford | Labour | Labour | Labour | Labour | Labour | Conservative | Labour Co-op | Labour |
| Dulwich | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Labour |
| Finsbury | Co. Conservative | Conservative | Labour | Labour | Labour | National Labour | Labour Co-op | Labour |
| Fulham East | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Labour |
| Fulham West | Co. Conservative | Conservative | Conservative | Conservative | Labour | Conservative | Conservative | Labour |
| Greenwich | Co. Conservative | Liberal | Labour | Conservative | Labour | Conservative | Conservative | Labour |
| Hackney Central | Coalition Liberal | National Liberal | Liberal | Conservative | Labour | Conservative | Labour | Labour |
| Hackney North | Co. Conservative | Conservative | Liberal | Conservative | Conservative | Conservative | Conservative | Labour |
| Hackney South | Independent | Conservative | Labour | Liberal | Labour | Conservative | Labour | Labour |
| Hammersmith North | Co. Conservative | Conservative | Labour | Conservative | Labour | Conservative | Labour | Independent Labour |
| Hammersmith South | Co. Conservative | Conservative | Conservative | Conservative | Labour Co-op | Conservative | Conservative | Labour Co-op |
| Hampstead | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Holborn | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Islington East | Co. Conservative | Conservative | Liberal | Conservative | Labour | Conservative | Conservative | Labour |
| Islington North | Co. Conservative | Conservative | Conservative | Conservative | Labour | Conservative | Conservative | Labour |
| Islington South | Co. Conservative | Conservative | Labour | Labour | Labour | Conservative | Labour | Labour |
| Islington West | Co. Conservative | Conservative | Labour | Labour | Labour | Conservative | Labour | Labour |
| Kennington | Coalition Liberal | Conservative | Labour | Conservative | Labour | Conservative | Conservative | Labour |
| Kensington North | Co. Conservative | Conservative | Conservative | Conservative | Labour | Conservative | Conservative | Labour |
| Kensington South | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Lambeth North | Liberal | Liberal | Liberal | Liberal | Labour | Liberal | Labour | Labour |
| Lewisham East | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Labour |
| Lewisham West | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Labour |
| City of London
(Two members) |
Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | National |
| Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | |
| Norwood | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Labour |
| Paddington North | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Labour |
| Paddington South | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Peckham | Coalition Liberal | Conservative | Conservative | Labour | Labour | Conservative | Conservative | Labour |
| Poplar South | Coalition Liberal | Labour | Labour | Labour | Labour | Labour | Labour | Labour |
| Putney | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Rotherhithe | Co. Conservative | Conservative | Labour | Labour | Labour | Conservative | Labour | Labour |
| St Marylebone | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| St Pancras North | Co. Conservative | Conservative | Labour | Conservative | Labour | Conservative | Conservative | Labour |
| St Pancras South East | Conservative | Conservative | Labour | Conservative | Labour | Conservative | Conservative | Labour |
| St Pancras South West | Co. Conservative | Conservative | Conservative | Conservative | Labour | Conservative | Conservative | Labour |
| Shoreditch | Coalition Liberal | National Liberal | Labour | Labour | Labour | Liberal National | Labour | Labour |
| Southwark Central | Coalition Liberal | National Liberal | Liberal | Labour | Labour | National | Labour | Labour |
| Southwark North | Coalition Liberal | National Liberal | Labour | Labour | Labour | Liberal National | Liberal National | Labour |
| Southwark South East | Coalition Liberal | National Liberal | Labour | Labour | Labour | Conservative | Labour | Labour |
| Stepney Limehouse | Coalition Liberal | Labour | Labour | Labour | Labour | Labour | Labour | Labour |
| Stepney Mile End | Co. Conservative | Conservative | Labour | Labour | Labour | Conservative | Labour | Communist |
| Stoke Newington | Co. Conservative | Conservative | Liberal | Conservative | Conservative | Conservative | Conservative | Labour |
| Streatham | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Wandsworth Central | Conservative | Conservative | Conservative | Conservative | Labour | Conservative | Conservative | Labour |
| Westminster Abbey | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Westminster St George's | Ind. Conservative | Ind. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Whitechapel and St Georges | Liberal | Labour | Labour | Labour | Labour | Liberal | Labour | Labour |
| Woolwich East | Labour | Labour | Labour | Labour | Labour | Labour | Labour | Labour |
| Woolwich West | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Labour |
East Anglia (55; 62 in 1945)
Bedfordshire (3)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Bedford | Coalition Liberal | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Labour |
| Bedfordshire Mid | Co. Conservative | Liberal | Liberal | Conservative | Liberal | Conservative | Conservative | Conservative |
| Luton | Coalition Liberal | Conservative | Liberal | Conservative | Liberal | Liberal National | Liberal National | Labour |
Hertfordshire (5; 6 in 1945)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Hemel Hempstead | Co. Conservative | Conservative | Liberal | Conservative | Conservative | Conservative | Conservative | Conservative |
| Hertford | Silver Badge | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Hitchin | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Labour |
| St Albans | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Labour |
| Barnet | Labour | |||||||
| Watford | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Labour |
Huntingdonshire (1)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Huntingdonshire | Co. Conservative | Conservative | Liberal | Conservative | Liberal | Liberal National | Liberal National | Liberal National |
Cambridgeshire (2)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Cambridge | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Labour |
| Cambridgeshire | Coalition Liberal | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Labour |
Isle of Ely (1)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Isle of Ely | Coalition Liberal | Conservative | Liberal | Conservative | Liberal | Liberal | Liberal | Conservative |
Norfolk (8)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Great Yarmouth | Co. Conservative | Liberal | Liberal | Conservative | Liberal | Liberal National | Liberal National | Labour |
| King's Lynn | Co. Conservative | Conservative | Liberal | Conservative | Conservative | Conservative | Conservative | Labour |
| Norfolk East | Co. Conservative | Conservative | Liberal | Conservative | Liberal | Liberal National | Liberal National | Liberal National |
| Norfolk North | Coalition Independent | Labour | Labour | Labour | Labour | Conservative | Conservative | Labour |
| Norfolk South | Liberal | Conservative | Labour | Conservative | Conservative | Conservative | Conservative | Labour |
| Norfolk South West | Coalition Liberal | Liberal | Conservative | Conservative | Labour | Conservative | Conservative | Labour |
| Norwich
(Two members) |
Liberal | National Liberal | Labour | Liberal | Liberal | Liberal National | Liberal National | Labour |
| Coalition Labour | Independent | Labour | Conservative | Labour | Conservative | Conservative | Labour |
Suffolk (6)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Bury St Edmunds | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Eye | Coalition Liberal | Liberal | Conservative | Conservative | Liberal | Liberal National | Liberal National | Liberal |
| Ipswich | Co. Conservative | Conservative | Labour | Conservative | Conservative | Conservative | Conservative | Labour |
| Lowestoft | Coalition Liberal | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Labour |
| Sudbury | Liberal | Conservative | Liberal | Conservative | Conservative | Conservative | Conservative | Labour |
| Woodbridge | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
Essex (20; 26 in 1945)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Chelmsford | Co. Conservative | Conservative | Liberal | Conservative | Conservative | Conservative | Conservative | Common Wealth |
| Colchester | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Labour |
| East Ham North | Coalition Liberal | Conservative | Labour | Conservative | Labour | Conservative | Conservative | Labour Co-op |
| East Ham South | Coalition NDP | Co-operative | Co-operative | Co-operative | Labour Co-op | Conservative | Labour Co-op | Labour Co-op |
| Epping | Co. Conservative | Conservative | Conservative | Constitutionalist | Conservative | Conservative | Conservative | Labour |
| Essex South East | Co. Conservative | Conservative | Labour | Conservative | Labour | Conservative | Conservative | Labour |
| Harwich | Co. Conservative | Liberal | Liberal | Conservative | Liberal | Liberal National | Liberal National | Liberal National |
| Ilford | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | |
| Ilford North | Labour Co-op | |||||||
| Ilford South | Labour | |||||||
| Leyton East | Coalition Liberal | Conservative | Labour | Conservative | Labour | Conservative | Conservative | Labour |
| Leyton West | Co. Conservative | Conservative | Conservative | Conservative | Labour | Conservative | Labour | Labour |
| Maldon | Co. Conservative | Conservative | Labour | Conservative | Conservative | Conservative | Conservative | Labour |
| Romford | Coalition Liberal | National Liberal | Conservative | Conservative | Labour | Conservative | Labour | Labour |
| Barking | Labour | |||||||
| Dagenham | Labour | |||||||
| Hornchurch | Labour | |||||||
| Saffron Walden | Liberal | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Southend-on-Sea | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Thurrock | Labour | |||||||
| Walthamstow East | Co. Conservative | Conservative | Conservative | Constitutionalist | Labour | Conservative | Conservative | Labour |
| Walthamstow West | Coalition NDP | Labour | Labour | Liberal | Labour | Labour | Labour | Labour |
| West Ham Plaistow | Labour | Labour | Labour | Labour | Labour | Labour | Labour | Labour |
| West Ham Silvertown | National Socialist | Labour | Labour | Labour | Labour | Labour | Labour | Labour |
| West Ham Stratford | Co. Conservative | Labour | Labour | Labour | Labour | Labour | Labour | Labour |
| West Ham Upton | Co. Conservative | Conservative | Labour | Conservative | Labour | Conservative | Labour | Labour |
| Woodford | Conservative | |||||||
West Midlands (55; 58 in 1945)
Shropshire (4)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Ludlow | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Oswestry | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Shrewsbury | Co. Conservative | Conservative | Liberal | Conservative | Conservative | Conservative | Conservative | Conservative |
| The Wrekin | Coalition Liberal | Conservative | Labour | Conservative | Labour | Conservative | Conservative | Labour |
Staffordshire (18)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Burslem | Labour | Labour | Liberal | Labour | Labour | Conservative | Labour | Labour |
| Burton | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Labour |
| Cannock | Coalition Labour | Labour | Labour | Labour | Labour | Conservative | Labour | Labour |
| Hanley | Coalition NDP | Labour | Labour | Labour | Labour | Conservative | Labour | Labour |
| Kingswinford | Labour | Labour | Labour | Labour | Labour | Conservative | Labour | Labour |
| Leek | Labour | Labour | Labour | Labour | Labour | Conservative | Labour | Labour |
| Lichfield | Coalition Liberal | National Liberal | Labour | Conservative | Labour | National Labour | National Labour | Labour |
| Newcastle-under-Lyme | Liberal | Labour | Labour | Labour | Labour | Labour | Labour | Labour |
| Smethwick | Labour | Labour | Labour | Labour | Labour | Conservative | Conservative | Labour |
| Stafford | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Labour |
| Stoke-on-Trent | Coalition Liberal | National Liberal | Liberal | Constitutionalist | Labour | Conservative | Labour | Labour |
| Stone | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Walsall | National Party | Liberal | Liberal | Conservative | Labour | Liberal | Liberal National | Labour |
| Wednesbury | Labour | Labour | Labour | Labour | Labour | Conservative | Labour | Labour |
| West Bromwich | Labour | Labour | Labour | Labour | Labour | Conservative | Labour | Labour |
| Wolverhampton Bilston | Co. Conservative | Conservative | Conservative | Labour | Labour | Conservative | Conservative | Labour Co-op |
| Wolverhampton East | Liberal | Liberal | Liberal | Liberal | Liberal | Liberal | Liberal | Labour |
| Wolverhampton West | Co. Conservative | Conservative | Conservative | Conservative | Labour | Conservative | Conservative | Labour |
Herefordshire (2)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Hereford | Co. Conservative | Conservative | Conservative | Conservative | Liberal | Conservative | Conservative | Conservative |
| Leominster | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
Worcestershire (6)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Bewdley | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Dudley | Co. Conservative | Conservative | Conservative | Conservative | Labour | Conservative | Conservative | Labour |
| Evesham | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Kidderminster | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Labour |
| Stourbridge | Liberal | Conservative | Conservative | Conservative | Labour | Conservative | Conservative | Labour |
| Worcester | Co. Conservative | Liberal | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
Warwickshire (17; 20 in 1945)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Birmingham Acock's Green | Labour | |||||||
| Birmingham Aston | Co. Conservative | Conservative | Conservative | Conservative | Labour | Conservative | Conservative | Labour |
| Birmingham Deritend | Co. Conservative | Conservative | Conservative | Conservative | Labour Co-op | Conservative | Conservative | Labour Co-op |
| Birmingham Duddeston | Coalition NDP | Conservative | Conservative | Conservative | Labour | Conservative | Conservative | Labour Co-op |
| Birmingham Edgbaston | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Birmingham Erdington | Co. Conservative | Conservative | Conservative | Conservative | Labour | Conservative | Conservative | Labour |
| Birmingham Handsworth | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Birmingham King's Norton | Co. Conservative | Conservative | Conservative | Labour | Conservative | Conservative | Conservative | Labour |
| Birmingham Ladywood | Co. Conservative | Conservative | Conservative | Conservative | Labour | Conservative | Conservative | Labour |
| Birmingham Moseley | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Birmingham Sparkbrook | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Labour |
| Birmingham West | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Labour |
| Birmingham Yardley | Co. Conservative | Conservative | Conservative | Conservative | Labour | Conservative | Conservative | Labour |
| Coventry | Co. Conservative | Conservative | Labour | Conservative | Labour | Conservative | Conservative | N/A |
| Coventry East | Labour | |||||||
| Coventry West | Labour | |||||||
| Nuneaton | Co. Conservative | Conservative | Liberal | Conservative | Labour | Conservative | Labour | Labour |
| Rugby | Co. Conservative | Conservative | Liberal | Conservative | Conservative | Conservative | Conservative | Independent |
| Solihull | Conservative | |||||||
| Sutton Coldfield | Conservative | |||||||
| Tamworth | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | N/A |
| Warwick and Leamington | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
East Midlands (42)
Derbyshire (10)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Belper | Liberal | Liberal | Conservative | Conservative | Labour | Conservative | Conservative | Labour |
| Chesterfield | Liberal | Liberal | Liberal | Liberal | Labour | Conservative | Labour | Labour |
| Clay Cross | Coalition Liberal | Labour | Labour | Labour | Labour | Labour | Labour | Labour |
| Derby
(Two members) |
Labour | Labour | Labour | Labour | Labour | National Labour | National Labour | Labour |
| Conservative | Liberal | Labour | Conservative | Labour | Conservative | Conservative | Labour | |
| Derbyshire North East | Liberal | Labour | Labour | Labour | Labour | Conservative | Labour | Labour |
| Derbyshire South | Coalition Liberal | Conservative | Conservative | Conservative | Labour | Conservative | Conservative | Labour |
| Derbyshire West | Liberal | Liberal | Conservative | Conservative | Conservative | Conservative | Conservative | Labour |
| High Peak | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Ilkeston | Coalition Liberal | Labour | Labour | Labour | Labour | National Labour | Labour | Labour |
Nottinghamshire (9)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Bassetlaw | Co. Conservative | Conservative | Conservative | Conservative | Labour | National Labour | Labour | Labour |
| Broxtowe | Labour | Labour | Labour | Labour | Labour | Labour | Labour | Labour |
| Mansfield | Labour | Liberal | Labour | Labour | Labour | Labour | Labour | Labour |
| Newark | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Nottingham Central | Co. Conservative | Liberal | Liberal | Conservative | Conservative | Conservative | Conservative | Labour |
| Nottingham East | Co. Conservative | Conservative | Liberal | Conservative | Liberal | Conservative | Conservative | Labour |
| Nottingham South | Co. Conservative | Conservative | Conservative | Conservative | Labour | National Labour | National Labour | Labour Co-op |
| Nottingham West | Labour | Labour | Labour | Labour | Labour | Conservative | Labour | Labour |
| Rushcliffe | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Labour |
Leicestershire (7)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Bosworth | Coalition Liberal | Conservative | Liberal | Conservative | Liberal | Liberal National | Liberal National | Labour |
| Harborough | Co. Conservative | Conservative | Liberal | Conservative | Conservative | Conservative | Conservative | Labour |
| Leicester East | Coalition Liberal | National Liberal | Labour | Conservative | Labour | Conservative | Conservative | Labour |
| Leicester South | Co. Conservative | Conservative | Liberal | Conservative | Conservative | Conservative | Conservative | Labour |
| Leicester West | Coalition NDP | Labour | Labour | Labour | Labour | Liberal | National Labour | Labour |
| Loughborough | Coalition Liberal | National Liberal | Liberal | Conservative | Labour | Conservative | Conservative | Labour |
| Melton | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
Lincolnshire and Rutland (9)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Brigg | Co. Conservative | Conservative | Conservative | Conservative | Labour | Conservative | Labour | Labour |
| Gainsborough | Co. Conservative | Conservative | Liberal | Conservative | Conservative | Conservative | Conservative | Conservative |
| Grantham | Co. Conservative | Liberal | Conservative | Conservative | Conservative | Conservative | Conservative | Independent |
| Grimsby | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Labour |
| Holland with Boston | Labour | Labour | Labour | Conservative | Liberal | Liberal National | Liberal National | Liberal National |
| Horncastle | Co. Conservative | Liberal | Liberal | Conservative | Conservative | Conservative | Conservative | Conservative |
| Lincoln | Co. Conservative | Conservative | Conservative | Labour | Labour | Conservative | Conservative | Labour |
| Louth | Co. Conservative | Liberal | Liberal | Conservative | Conservative | Conservative | Conservative | Conservative |
| Rutland and Stamford | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
Northamptonshire (5)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Daventry | Co. Conservative | Conservative | Conservative | Conservative | Speaker (Conservative) | Speaker (Conservative) | Speaker (Conservative) | Conservative |
| Kettering | Co-operative | Conservative | Co-operative | Conservative | Labour Co-op | Conservative | Conservative | Labour |
| Northampton | Coalition Liberal | National Liberal | Labour | Conservative | Labour | Conservative | Conservative | Labour |
| Peterborough | Co. Conservative | Conservative | Conservative | Conservative | Labour | Conservative | Conservative | Labour Co-op |
| Wellingborough | Labour | National Liberal | Labour | Labour | Labour | Conservative | Conservative | Labour |
North West (83; 85 from 1945)
Cumberland (5)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Carlisle | Coalition Liberal | Labour | Labour | Conservative | Labour | Conservative | Conservative | Labour |
| Cumberland North | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Liberal | Liberal |
| Penrith and Cockermouth | Speaker (Conservative) | Liberal | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Whitehaven | Co. Conservative | Labour | Labour | Conservative | Labour | Conservative | Labour | Labour |
| Workington | Labour | Labour | Labour | Labour | Labour | Labour | Labour | Labour |
Westmorland (1)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Westmorland | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
Lancashire (65; 66 in 1945)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Accrington | Co. Conservative | Labour | Liberal | Constitutionalist | Labour | Conservative | Conservative | Labour |
| Ashton-under-Lyne | Co. Conservative | Conservative | Conservative | Conservative | Labour | Conservative | Labour | Labour |
| Barrow-in-Furness | Conservative | Conservative | Conservative | Labour | Labour | Conservative | Conservative | Labour |
| Blackburn
(Two members) |
Coalition Liberal | National Liberal | Liberal | Liberal | Labour | Conservative | Conservative | Labour |
| Co. Conservative | Conservative | Conservative | Conservative | Labour | Conservative | Conservative | Labour | |
| Blackpool | Co. Conservative | Conservative | Liberal | Conservative | Conservative | Conservative | Conservative | N/A |
| Blackpool North | Conservative | |||||||
| Blackpool South | Conservative | |||||||
| Bolton
(Two members) |
Labour | Conservative | Conservative | Conservative | Labour | Conservative | Conservative | Labour |
| Coalition Liberal | National Liberal | Labour | Conservative | Labour | Conservative | Conservative | Labour | |
| Bootle | Co. Conservative | Liberal | Liberal | Conservative | Labour | Conservative | Conservative | Labour |
| Burnley | Labour | Labour | Labour | Labour | Labour | Liberal National | Labour | Labour |
| Bury | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Chorley | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Labour |
| Clitheroe | Labour | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Labour |
| Darwen | Co. Conservative | Conservative | Liberal | Conservative | Liberal | Liberal | Conservative | Conservative |
| Eccles | Co. Conservative | Labour | Labour | Conservative | Labour | Conservative | Conservative | Labour |
| Farnworth | Conservative | Labour | Labour | Labour | Labour | Conservative | Labour | Labour |
| Fylde | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Heywood and Radcliffe | Coalition Liberal | National Liberal | Liberal | Constitutionalist | Liberal | Conservative | Conservative | Labour |
| Ince | Labour | Labour | Labour | Labour | Labour | Labour | Labour | Labour |
| Lancaster | Co. Conservative | Conservative | Liberal | Conservative | Conservative | Conservative | Conservative | Conservative |
| Leigh | Liberal | Labour | Labour | Labour | Labour | Labour | Labour | Labour |
| Liverpool East Toxteth | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Liverpool Edge Hill | Co. Conservative | Conservative | Labour | Labour | Labour | Conservative | Conservative | Labour |
| Liverpool Everton | Co. Conservative | Conservative | Conservative | Conservative | Labour | Conservative | Labour | Labour |
| Liverpool Exchange | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Labour |
| Liverpool Fairfield | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Labour |
| Liverpool Kirkdale | Co. Conservative | Conservative | Conservative | Conservative | Labour | Conservative | Conservative | Labour |
| Liverpool Scotland | Irish Nationalist | Irish Nationalist | Irish Nationalist | Irish Nationalist | Irish Nationalist | Labour | Labour | Labour |
| Liverpool Walton | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Labour |
| Liverpool Wavertree | Co. Conservative | Conservative | Liberal | Conservative | Conservative | Conservative | Conservative | Conservative |
| Liverpool West Derby | Co. Conservative | Conservative | Liberal | Conservative | Conservative | Conservative | Conservative | Conservative |
| Liverpool West Toxteth | Co. Conservative | Conservative | Conservative | Labour | Labour | Conservative | Labour | Labour |
| Lonsdale | Co. Conservative | Conservative | Liberal | Conservative | Conservative | Conservative | Conservative | Conservative |
| Manchester Ardwick | Co. Conservative | Labour | Labour | Labour | Labour | Conservative | Labour | Labour |
| Manchester Blackley | Conservative | Conservative | Liberal | Conservative | Liberal | Conservative | Conservative | Labour |
| Manchester Clayton | Conservative | Conservative | Labour | Labour | Labour | Conservative | Labour | Labour |
| Manchester Exchange | Co. Conservative | Conservative | Liberal | Conservative | Conservative | Conservative | Conservative | Labour |
| Manchester Gorton | Coalition Labour | Labour | Labour | Labour | Labour | Conservative | Labour | Labour |
| Manchester Hulme | Conservative | Conservative | Conservative | Conservative | Labour | Conservative | Conservative | Labour |
| Manchester Moss Side | Conservative | Conservative | Labour | Conservative | Conservative | Conservative | Conservative | Labour |
| Manchester Platting | Labour | Labour | Liberal | Labour | Labour | Conservative | Labour | Labour |
| Manchester Rusholme | Co. Conservative | Conservative | Liberal | Conservative | Conservative | Conservative | Conservative | Labour |
| Manchester Withington | Conservative | Conservative | Liberal | Conservative | Liberal | Conservative | Conservative | Conservative |
| Middleton and Prestwich | Coalition Liberal | National Liberal | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Mossley | Coalition Liberal | Independent | Independent | Independent | Labour Co-op | Independent | National | Labour Co-op |
| Nelson and Colne | Labour | Labour | Labour | Labour | Labour | Conservative | Labour | Labour |
| Newton | Labour | Labour | Labour | Labour | Labour | Conservative | Labour | Labour |
| Oldham
(Two members) |
Coalition Liberal | National Liberal | Liberal | Liberal | Labour | Conservative | Liberal National | Labour |
| Co. Conservative | Labour | Labour | Conservative | Labour | Conservative | Conservative | Labour | |
| Ormskirk | Labour | Conservative | Conservative | Conservative | Labour | National Labour | National Labour | Labour |
| Preston
(Two members) |
Co. Conservative | Liberal | Liberal | Conservative | Labour | Conservative | Conservative | Labour |
| Labour | Labour | Labour | Labour | Liberal then Labour | Conservative | Conservative | Labour | |
| Rochdale | Co. Conservative | Labour | Liberal | Labour | Labour | Conservative | Labour | Labour |
| Rossendale | Co. Conservative | Conservative | Conservative | Conservative | Labour | Conservative | Conservative | Labour |
| Royton | Co. Conservative | Conservative | Liberal | Conservative | Conservative | Conservative | Conservative | Conservative |
| St Helens | Labour | Labour | Labour | Labour | Labour | Conservative | Labour | Labour |
| Salford North | Labour | Labour | Labour | Conservative | Labour | Conservative | Conservative | Labour |
| Salford South | Co. Conservative | Conservative | Labour | Conservative | Labour | Conservative | Conservative | Labour |
| Salford West | Conservative | Conservative | Labour | Conservative | Labour | Conservative | Conservative | Labour |
| Southport | Co. Conservative | Conservative | Liberal | Conservative | Conservative | Conservative | Conservative | Conservative |
| Stretford | Coalition Liberal | National Liberal | Liberal | Constitutionalist | Independent | Conservative | Conservative | Labour |
| Warrington | Co. Conservative | Conservative | Labour | Conservative | Labour | Conservative | Conservative | Labour |
| Waterloo | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Westhoughton | Labour | Labour | Labour | Labour | Labour | Labour | Labour | Labour |
| Widnes | Co. Conservative | Conservative | Conservative | Conservative | Labour | Conservative | Conservative | Labour |
| Wigan | Labour | Labour | Labour | Labour | Labour | Labour | Labour | Labour |
Cheshire (14; 15 in 1945)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Altrincham | Co. Conservative | Conservative | Liberal | Conservative | Conservative | Conservative | Conservative | N/A |
| Altrincham and Sale | Conservative | |||||||
| Bucklow | Conservative | |||||||
| Birkenhead East | Co. Conservative | Liberal | Liberal | Conservative | Liberal | Liberal | Liberal | Labour |
| Birkenhead West | Co. Conservative | Conservative | Labour | Conservative | Labour | Conservative | Conservative | Labour |
| Chester | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Crewe | Coalition Liberal | Labour | Labour | Conservative | Labour | Conservative | Conservative | Labour |
| Eddisbury | Co. Conservative | Conservative | Conservative | Conservative | Liberal | Liberal National | Liberal National | Liberal National |
| Knutsford | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Macclesfield | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Northwich | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Stalybridge and Hyde | Conservative | Conservative | Liberal | Conservative | Labour | Conservative | Conservative | Labour |
| Stockport
(Two members) |
Coalition Labour | Conservative | Conservative | Conservative | Labour | Conservative | Conservative | Conservative |
| Coalition Liberal | National Liberal | Liberal | Conservative | Conservative | Conservative | Conservative | Conservative | |
| Wallasey | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Wirral | Co. Conservative | Conservative | Liberal | Conservative | Conservative | Conservative | Conservative | Conservative |
North East (28)
County Durham (18)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Barnard Castle | Labour | Conservative | Labour | Conservative | Labour | Conservative | Labour | Labour |
| Bishop Auckland | Labour | Labour | Labour | Labour | Labour | Liberal National | Labour | Labour |
| Blaydon | Coalition Liberal | Labour | Labour | Labour | Labour | Conservative | Labour | Labour |
| Chester-le-Street | Labour | Labour | Labour | Labour | Labour | Labour | Labour | Labour |
| Consett | Liberal | Labour | Labour | Labour | Labour | Liberal National | Labour | Labour |
| Darlington | Co. Conservative | Conservative | Conservative | Conservative | Labour | Conservative | Conservative | Labour |
| Durham | Co. Conservative | Labour | Labour | Labour | Labour | Liberal | Labour | Labour |
| Gateshead | Co. Conservative | Labour | Liberal | Labour | Labour | Liberal National | Liberal National | Labour |
| The Hartlepools | Conservative | Liberal | Liberal | Conservative | Conservative | Conservative | Conservative | Labour |
| Houghton-le-Spring | Labour | Labour | Labour | Labour | Labour | Conservative | Labour | Labour |
| Jarrow | Coalition Liberal | Labour | Labour | Labour | Labour | Conservative | Labour | Labour |
| Seaham | Liberal | Labour | Labour | Labour | Labour | National Labour | Labour | Labour |
| Sedgefield | Co. Conservative | Labour | Conservative | Conservative | Labour | Conservative | Labour | Labour |
| South Shields | Coalition Liberal | Liberal | Liberal | Liberal | Labour | Liberal | Labour | Labour |
| Spennymoor | Liberal | Labour | Labour | Labour | Labour | Labour | Labour | Labour |
| Stockton-on-Tees | Coalition Liberal | National Liberal | Liberal | Conservative | Labour | Conservative | Conservative | Labour |
| Sunderland
(Two members) |
Coalition Liberal | Conservative | Conservative | Conservative | Labour | Conservative | Liberal National | Labour |
| Conservative | Conservative | Conservative | Conservative | Labour | Conservative | Conservative | Labour |
Northumberland (10)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Berwick-upon-Tweed | Liberal | National Liberal | Conservative | Conservative | Conservative | Conservative | Liberal | Conservative |
| Hexham | Co. Conservative | Conservative | Liberal | Conservative | Conservative | Conservative | Conservative | Conservative |
| Morpeth | Labour | Labour | Labour | Labour | Labour | Conservative | Labour | Labour |
| Newcastle upon Tyne Central | Co. Conservative | Labour | Labour | Labour | Labour | Conservative | Conservative | Labour |
| Newcastle upon Tyne East | Coalition Liberal | Labour | Liberal | Labour | Liberal | Liberal National | Liberal National | Labour |
| Newcastle upon Tyne North | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Newcastle upon Tyne West | Coalition Liberal | Labour | Liberal | Labour | Labour | Conservative | Conservative | Labour |
| Tynemouth | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Labour |
| Wallsend | Coalition NDP | Labour | Labour | Labour | Labour | Conservative | Conservative | Labour |
| Wansbeck | Coalition Liberal | Labour | Labour | Labour | Labour | Conservative | Conservative | Labour |
Yorkshire (57)
York (1)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| York | Co. Conservative | Conservative | Conservative | Conservative | Labour | Conservative | Conservative | Labour |
East Riding (7)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Buckrose | Coalition Liberal | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Liberal |
| Holderness | Co. Conservative | Liberal | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Howdenshire | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Kingston upon Hull Central | Co. Conservative | Liberal | Liberal | Liberal | Labour | Conservative | Labour | Labour |
| Kingston upon Hull East | Co. Conservative | Conservative | Conservative | Conservative | Labour | Conservative | Labour | Labour |
| Kingston upon Hull North West | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Labour |
| Kingston upon Hull South West | Liberal | Liberal | Liberal | Conservative | Labour | Conservative | Conservative | Labour |
North Riding (6)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Cleveland | Co. Conservative | Conservative | Liberal | Conservative | Labour | Conservative | Conservative | Labour |
| Middlesbrough East | Liberal | Labour | Liberal | Labour | Labour | Liberal | Labour | Labour |
| Middlesbrough West | Liberal | Liberal | Liberal | Liberal | Liberal | Liberal | Liberal | Labour |
| Richmond (Yorks) | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Scarborough and Whitby | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Thirsk and Malton | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
West Riding (43)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Barkston Ash | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Barnsley | Coalition Liberal | Labour | Labour | Labour | Labour | Liberal National | Labour | Labour |
| Batley and Morley | Coalition Liberal | Labour | Labour | Liberal | Labour | Conservative | Labour | Labour |
| Bradford Central | Co. Conservative | Labour | Labour | Conservative | Labour | Conservative | Labour | Labour |
| Bradford East | Coalition NDP | Labour | Labour | Liberal | Labour | Conservative | Conservative | Labour |
| Bradford North | Co. Conservative | Conservative | Liberal | Conservative | Labour | Conservative | Conservative | Labour |
| Bradford South | Co. Conservative | Liberal | Liberal | Co-operative | Labour Co-op | Liberal | Liberal | Labour Co-op |
| Colne Valley | Coalition Liberal | Labour | Labour | Labour | Labour | Liberal | Labour | Labour |
| Dewsbury | Co. Conservative | Labour | Liberal | Labour | Labour | Liberal | Labour | Labour |
| Doncaster | Coalition Liberal | Labour | Labour | Labour | Labour | Conservative | Labour | Labour |
| Don Valley | Coalition NDP | Labour | Labour | Labour | Labour | Labour | Labour | Labour |
| Elland | Co. Conservative | Labour | Liberal | Labour | Labour | Conservative | Conservative | Labour |
| Halifax | Coalition Liberal | Liberal | Liberal | Liberal | Labour | Conservative | Conservative | Labour |
| Hemsworth | Labour | Labour | Labour | Labour | Labour | Labour | Labour | Labour |
| Huddersfield | Coalition Liberal | Liberal | Labour | Labour | Labour | Liberal National | Liberal National | Labour |
| Keighley | Co. Conservative | Labour | Liberal | Labour | Labour | Conservative | Labour | Labour |
| Leeds Central | Coalition Liberal | Conservative | Conservative | Conservative | Labour | National Labour | National Labour | Labour |
| Leeds North | Coalition Liberal | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Leeds North East | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Labour |
| Leeds South | Coalition Liberal | Labour | Labour | Labour | Labour | Conservative | Labour | Labour |
| Leeds South East | Labour | Labour | Labour | Labour | Labour | Labour | Labour | Labour |
| Leeds West | Coalition Liberal | National Liberal | Labour | Labour | Labour | Conservative | Conservative | Labour |
| Normanton | Labour | Labour | Labour | Labour | Labour | Labour | Labour | Labour |
| Penistone | Liberal | Liberal | Liberal | Labour | Labour | Conservative | Labour | Labour |
| Pontefract | Coalition Liberal | Labour | Labour | Conservative | Labour | Conservative | Labour | Labour |
| Pudsey and Otley | Coalition Liberal | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Ripon | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Rotherham | Conservative | Conservative | Labour | Labour | Labour | Conservative | Labour | Labour |
| Rother Valley | Labour | Labour | Labour | Labour | Labour | Labour | Labour | Labour |
| Rothwell | Labour | Labour | Labour | Labour | Labour | Labour | Labour | Labour |
| Sheffield Attercliffe | Coalition Liberal | Labour | Labour | Labour | Labour | Conservative | Labour | Labour |
| Sheffield, Brightside | Coalition Liberal | Labour | Labour | Labour | Labour | Conservative | Labour | Labour |
| Sheffield, Central | Co. Conservative | Conservative | Conservative | Conservative | Labour | Conservative | Conservative | Labour |
| Sheffield, Ecclesall | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Sheffield, Hallam | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Sheffield, Hillsborough | Coalition Liberal | Co-operative | Co-operative | Co-operative | Labour Co-op | Conservative | Labour Co-op | Labour Co-op |
| Sheffield, Park | Coalition Liberal | National Liberal | Conservative | Conservative | Labour | Conservative | Labour | Labour |
| Shipley | Coalition Liberal | National Liberal | Labour | Labour | Labour | Conservative | Labour | Labour |
| Skipton | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Sowerby | NADSS | Conservative | Liberal | Conservative | Labour | Conservative | Conservative | Labour |
| Spen Valley | Coalition Liberal | Liberal | Liberal | Liberal | Liberal | Liberal National | Liberal National | Labour |
| Wakefield | Co. Conservative | Conservative | Labour | Conservative | Labour | Conservative | Labour | Labour |
| Wentworth | Labour | Labour | Labour | Labour | Labour | Labour | Labour | Labour |
England non-geographic (7)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Cambridge University (Two members) | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Co. Conservative | Independent Liberal | Conservative | Conservative | Conservative | Conservative | Conservative | Independent | |
| Combined English Universities
(Two members) |
Coalition Liberal | National Liberal | Liberal | Liberal | Independent | Independent | Independent | Independent |
| Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Independent | |
| Oxford University | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Independent |
| Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Independent | Independent | |
| London University | Co. Conservative | Conservative | Conservative | Independent | Independent | Nat. Independent | Nat. Independent | Independent |
Wales (36)
Anglesey (1)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Anglesey | Independent Labour | Independent Labour | Liberal | Liberal | Liberal | Liberal | Liberal | Liberal |
Caernarvonshire (2)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Caernarvon District of Boroughs | Coalition Liberal | National Liberal | Liberal | Liberal | Liberal | Liberal | Liberal | Conservative |
| Carnarvonshire | Coalition Liberal | Labour | Liberal | Liberal | Liberal | Liberal | Liberal | Labour |
Denbighshire (2)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Denbigh | Coalition Liberal | National Liberal | Liberal | Liberal | Liberal | Liberal National | Liberal National | Liberal National |
| Wrexham | Coalition Liberal | Labour | Labour | Liberal | Labour | Liberal | Labour | Labour |
Flintshire (1)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Flint | Coalition Liberal | National Liberal | Liberal | Conservative | Liberal | Liberal National | Conservative | Conservative |
Merionethshire (1)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Merioneth | Liberal | Liberal | Liberal | Liberal | Liberal | Liberal | Liberal | Liberal |
Montgomeryshire (1)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Montgomery | Liberal | Liberal | Liberal | Liberal | Liberal | Liberal National | Liberal National | Liberal |
Breconshire and Radnorshire (1)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Brecon and Radnor | Coalition Liberal | National Liberal | Liberal | Conservative | Labour | Conservative | National | Labour |
Cardiganshire (1)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Cardigan | Coalition Liberal | National Liberal | Independent Liberal | Liberal | Liberal | Liberal | Liberal | Liberal |
Carmarthenshire (2)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Carmarthen | Coalition Liberal | National Liberal | Liberal | Liberal | Labour | Liberal | Labour | Liberal |
| Llanelly | Coalition Liberal | Labour | Labour | Labour | Labour | Labour | Labour | Labour |
Pembrokeshire (1)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Pembroke | Coalition Liberal | National Liberal | Liberal | Conservative | Liberal | Liberal | Liberal | Liberal |
Glamorgan (16)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Aberavon | Coalition Liberal | Labour | Labour | Labour | Labour | Labour | Labour | Labour |
| Aberdare | Coalition NDP | Labour | Labour | Labour | Labour | Labour | Labour | Labour |
| Llandaff and Barry | Conservative | Conservative | Conservative | Conservative | Labour | Conservative | Conservative | Labour |
| Caerphilly | Labour | Labour | Labour | Labour | Labour | Labour | Labour | Labour |
| Cardiff Central | Conservative | Conservative | Conservative | Conservative | Labour | National Labour | National Labour | Labour |
| Cardiff East | Liberal | Conservative | Liberal | Conservative | Labour | Conservative | Conservative | Labour |
| Cardiff South | Conservative | Conservative | Labour | Conservative | Labour | Conservative | Conservative | Labour |
| Gower | Labour | Labour | Labour | Labour | Labour | Labour | Labour | Labour |
| Merthyr | Coalition Liberal | Labour | Labour | Labour | Labour | Ind. Labour Party | Labour | Labour |
| Neath | Coalition Liberal | Labour | Labour | Labour | Labour | Labour | Labour | Labour |
| Ogmore | Labour | Labour | Labour | Labour | Labour | Labour | Labour | Labour |
| Pontypridd | Coalition Liberal | National Liberal | Labour | Labour | Labour | Labour | Labour | Labour |
| Rhondda East | Labour | Labour | Labour | Labour | Labour | Labour | Labour | Labour |
| Rhondda West | Labour | Labour | Labour | Labour | Labour | Labour | Labour | Labour |
| Swansea East | Coalition Liberal | Labour | Labour | Labour | Labour | Labour | Labour | Labour |
| Swansea West | Coalition Liberal | National Liberal | Labour | Liberal | Labour | Liberal National | Liberal National | Labour |
Monmouthshire (6)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Abertillery | Labour | Labour | Labour | Labour | Labour | Labour | Labour | Labour |
| Bedwellty | Labour | Labour | Labour | Labour | Labour | Labour | Labour | Labour |
| Ebbw Vale | Labour | Labour | Labour | Labour | Labour | Labour | Labour | Labour |
| Monmouth | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Newport | Coalition Liberal | Conservative | Conservative | Conservative | Labour | Conservative | Conservative | Labour |
| Pontypool | Labour | Labour | Labour | Labour | Labour | Labour | Labour | Labour |
Non-geographic (1)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| University of Wales | Coalition Liberal | National Liberal | Christian Pacifist | Liberal | Liberal | Liberal | Liberal | Liberal |
Scotland (70)
Orkney and Shetland (1)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Orkney and Shetland | Coalition Liberal | Liberal | Liberal | Liberal | Liberal | Liberal | Conservative | Conservative |
Caithness and Sutherland (1)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Caithness and Sutherland | Coalition Liberal | National Liberal | Liberal | Liberal | Liberal | Liberal | Liberal | Conservative |
Inverness-shire and Ross and Cromarty (3)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Inverness | Coalition Liberal | National Liberal | Liberal | Liberal | Liberal | Liberal National | Liberal National | Ind. Liberal National |
| Ross and Cromarty | Coalition Liberal | National Liberal | Liberal | Liberal | Liberal | Liberal National | Liberal National | Ind. Liberal National |
| Western Isles | Liberal | National Liberal | Liberal | Liberal | Liberal | Liberal National | Labour | Labour |
Banffshire (1)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Banff | Coalition Liberal | National Liberal | Liberal | Conservative | Liberal | Liberal | Conservative | Conservative |
Moray and Nairnshire (1)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Moray and Nairn | Coalition Liberal | National Liberal | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
Aberdeenshire and Kincardineshire (5)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Aberdeen North | Labour | Labour | Labour | Labour | Labour | Conservative | Labour | Labour |
| Aberdeen South | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Aberdeenshire Central | Co. Conservative | Liberal | Liberal | Conservative | Conservative | Conservative | Conservative | Conservative |
| Aberdeenshire East | Coalition Liberal | Liberal | Liberal | Conservative | Conservative | Conservative | Conservative | Conservative |
| Aberdeenshire West and Kincardine | Coalition Liberal | Liberal | Conservative | Conservative | Liberal | Conservative | Conservative | Conservative |
Forfarshire (4)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Dundee
(Two members) |
Labour | Labour | Labour | Labour | Labour | Liberal | Liberal | Labour |
| Coalition Liberal | Scottish Prohibition | Scottish Prohibition | Scottish Prohibition | Scottish Prohibition | Conservative | Conservative | Labour | |
| Forfar | Conservative | Liberal | Liberal | Conservative | Conservative | Conservative | Conservative | Conservative |
| Montrose District of Burghs | Coalition Liberal | National Liberal | Liberal | Liberal | Liberal | Liberal National | Liberal National | Liberal National |
Argyll (1)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Argyll | Coalition Liberal | National Liberal | Liberal | Conservative | Conservative | Conservative | Conservative | Conservative |
Perthshire and Kinross-shire (2)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Kinross and Western Perthshire | Liberal | National Liberal | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Perth | Coalition Liberal | Conservative | Liberal | Conservative | Conservative | Conservative | Conservative | Conservative |
Stirlingshire and Clackmannanshire (3)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Stirling and Falkirk District of Burghs | Liberal | Labour | Liberal | Labour | Labour | Conservative | Labour | Labour |
| Clackmannan and Eastern Stirlingshire | Co. Conservative | Labour | Labour | Labour | Labour | Conservative | Labour | Labour |
| Stirlingshire West | Co. Conservative | Labour | Labour | Conservative | Labour | Conservative | Labour | Labour |
Fife (4)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Dunfermline District of Burghs | Coalition Liberal | Labour | Labour | Labour | Labour | Liberal National | Labour | Labour |
| Fife East | Conservative | Liberal | Liberal | Conservative | Liberal | Liberal National | Liberal National | Liberal National |
| Fife West | Labour | Labour | Labour | Labour | Labour | Conservative | Communist | Communist |
| Kirkcaldy District of Burghs | Coalition Liberal | National Liberal | Labour | Labour | Labour | Conservative | Labour | Labour |
Dunbartonshire (2)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Dumbarton District of Burghs | Coalition Liberal | Labour | Labour | Labour | Labour | Labour | Labour | Labour |
| Dunbartonshire | Co. Conservative | Conservative | Labour | Conservative | Labour | Conservative | Conservative | Labour |
Renfrewshire (4)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Greenock | Liberal | Liberal | Liberal | Liberal | Liberal | Liberal National | Liberal National | Labour |
| Paisley | Liberal | Liberal | Liberal | Labour | Labour | Liberal | Liberal | Labour |
| Renfrewshire East | Coalition Liberal | Labour | Labour | Conservative | Conservative | Conservative | Conservative | Conservative |
| Renfrewshire West | Coalition Liberal | Labour | Labour | Conservative | Labour | Conservative | Conservative | Labour |
Ayrshire and Bute (4)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Ayr District of Burghs | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Ayrshire North and Bute | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Ayrshire South | Labour | Labour | Labour | Labour | Labour | Conservative | Labour | Labour |
| Kilmarnock | Coalition Liberal | National Liberal | Labour | Conservative | Labour | National Labour | National Labour | Labour |
Lanarkshire (22)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Bothwell | Co. Conservative | Labour | Labour | Labour | Labour | Conservative | Labour | Labour |
| Coatbridge | Co. Conservative | Labour | Labour | Labour | Labour | Conservative | Labour | Labour |
| Glasgow Bridgeton | Coalition Liberal | Labour | Labour | Labour | Labour | Ind. Labour Party | Ind. Labour Party | Ind. Labour Party |
| Glasgow Camlachie | Co. Conservative | Labour | Labour | Labour | Labour | Conservative | Ind. Labour Party | Ind. Labour Party |
| Glasgow Cathcart | Coalition Liberal | Labour | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Glasgow Central | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Glasgow Gorbals | Coalition Labour | Labour | Labour | Labour | Labour | Ind. Labour Party | Ind. Labour Party | Labour |
| Glasgow Govan | Labour | Labour | Labour | Labour | Independent Labour | Labour | Labour | Labour |
| Glasgow Hillhead | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Glasgow Kelvingrove | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Labour |
| Glasgow Maryhill | Co. Conservative | Labour | Labour | Conservative | Labour | Conservative | Labour | Labour |
| Glasgow Partick | Coalition Liberal | National Liberal | Co-operative | Conservative | Labour | Conservative | Conservative | Conservative |
| Glasgow Pollok | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Glasgow St. Rollox | Co. Conservative | Labour | Labour | Labour | Labour | Labour Co-op | Labour Co-op | Labour Co-op |
| Glasgow Shettleston | Co. Conservative | Labour | Labour | Labour | Labour | Ind. Labour Party | Ind. Labour Party | Ind. Labour Party |
| Glasgow Springburn | Co. Conservative | Labour | Labour | Labour | Labour | Conservative | Labour | Labour Co-op |
| Glasgow Tradeston | Co. Conservative | Co-operative | Co-operative | Co-operative | Labour Co-op | Conservative | Labour Co-op | Labour Co-op |
| Hamilton | Labour | Labour | Labour | Labour | Labour | Labour | Labour | Labour |
| Lanark | Co. Conservative | Conservative | Labour | Conservative | Labour | Conservative | Conservative | Labour |
| Lanarkshire North | Co. Conservative | Labour | Labour | Conservative | Labour | Conservative | Conservative | Labour |
| Motherwell | Co. Conservative | Communist | Conservative | Labour | Labour | Conservative | Labour | Labour |
| Rutherglen | Coalition Liberal | Labour | Labour | Labour | Labour | Conservative | Conservative | Labour |
Linlithgowshire (1)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Linlithgow | Co. Conservative | Labour | Labour | Conservative | Labour | Conservative | Labour | Labour |
Midlothian and Peeblesshire (8)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Edinburgh Central | Labour | Labour | Labour | Labour | Labour | Conservative | Conservative | Labour |
| Edinburgh East | Liberal | Liberal | Liberal | Labour | Labour | Liberal | Labour | Labour |
| Edinburgh North | Co. Conservative | Conservative | Liberal | Conservative | Conservative | Conservative | Conservative | Labour |
| Edinburgh South | Co. Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
| Edinburgh West | Co. Conservative | Liberal | Liberal | Conservative | Labour | Conservative | Conservative | Conservative |
| Leith | Liberal | Liberal | Liberal | Liberal | Liberal | Liberal National | Liberal National | Labour |
| Midlothian North | Co. Conservative | Conservative | Labour | Conservative | Conservative | Conservative | Conservative | Conservative |
| Midlothian South and Peebles | Liberal | Labour | Labour | Labour | Labour | Conservative | Conservative | Labour |
Dumfriesshire (1)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Dumfries | Co. Conservative | Liberal | Liberal | Conservative | Liberal | Liberal | Liberal National | Liberal National |
Kirkcudbrightshire and Wigtownshire (1)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Galloway | Coalition Liberal | Liberal | Liberal | Conservative | Liberal | Conservative | Conservative | Ind. Conservative |
Roxburghshire and Selkirkshire (1)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Roxburgh and Selkirk | Coalition Liberal | National Liberal | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
Berwickshire and Haddingtonshire (1)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Berwick and Haddington | Coalition Liberal | National Liberal | Labour | Conservative | Labour | Conservative | Conservative | Labour |
Non-geographic (3)
| Constituency | 1918 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|---|
| Combined Scottish Universities | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | National |
| Liberal | Liberal | Liberal | Liberal | Liberal | Liberal | Liberal National | Independent | |
| Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative | Conservative |
Northern Ireland (13 - from 1922)
| Constituency | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 1945 |
|---|---|---|---|---|---|---|---|
| Antrim
(Two members) |
Ulster Unionist | Ulster Unionist | Ulster Unionist | Ulster Unionist | Ulster Unionist | Ulster Unionist | Ulster Unionist |
| Ulster Unionist | Ulster Unionist | Ulster Unionist | Ulster Unionist | Ulster Unionist | Ulster Unionist | Ulster Unionist | |
| Armagh | Ulster Unionist | Ulster Unionist | Ulster Unionist | Ulster Unionist | Ulster Unionist | Ulster Unionist | Ulster Unionist |
| Belfast East | Ulster Unionist | Ulster Unionist | Ulster Unionist | Ulster Unionist | Ulster Unionist | Ulster Unionist | Ulster Unionist |
| Belfast North | Ulster Unionist | Ulster Unionist | Ulster Unionist | Ulster Unionist | Ulster Unionist | Ulster Unionist | Ulster Unionist |
| Belfast South | Ulster Unionist | Ulster Unionist | Ulster Unionist | Ulster Unionist | Ulster Unionist | Ulster Unionist | Ulster Unionist |
| Belfast West | Ulster Unionist | Ulster Unionist | Ulster Unionist | Ulster Unionist | Ulster Unionist | Ulster Unionist | Independent Labour |
| Down
(Two members) |
Ulster Unionist | Ulster Unionist | Ulster Unionist | Ulster Unionist | Ulster Unionist | Ulster Unionist | Independent Unionist |
| Ulster Unionist | Ulster Unionist | Ulster Unionist | Ulster Unionist | Ulster Unionist | Ulster Unionist | Ulster Unionist | |
| Fermanagh and Tyrone
(Two members) |
Nationalist | Nationalist | Ulster Unionist | Nationalist | Nationalist | Nationalist | Nationalist |
| Nationalist | Nationalist | Ulster Unionist | Nationalist | Nationalist | Nationalist | Nationalist | |
| Londonderry | Ulster Unionist | Ulster Unionist | Ulster Unionist | Ulster Unionist | Ulster Unionist | Ulster Unionist | Ulster Unionist |
| Queen's University of Belfast | Ulster Unionist | Ulster Unionist | Ulster Unionist | Ulster Unionist | Ulster Unionist | Ulster Unionist | Ulster Unionist |
See also
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