Democrats

1. District 4: Delia Ramirez retired to run for US Representative from Illinois's 3rd congressional district.
2. District 13: Greg Harris retired.
3. District 46: Deb Conroy retired to run for Chair of the DuPage County Board.
4. District 62: Sam Yingling retired to run for state senator from District 31.
5. District 72: Michael Halpin retired to run for state senator from District 36.

Republicans

1. District 45: Seth Lewis retired to run for state senator from District 24.
2. District 54: Tom Morrison retired.
3. District 88: Keith P. Sommer retired.^[5]
4. District 89: Andrew Chesney retired to run for state senator from District 45.
5. District 90: Tom Demmer retired to run for treasurer of Illinois.
6. District 95: Avery Bourne retired to run for lieutenant governor of Illinois.
7. District 97: Mark Batinick retired.
8. District 99: Sandy Hamilton retired to run for state senator from District 48.
9. District 105: Dan Brady retired to run for Secretary of State of Illinois.

Redistricting

With the 2020 United States census, all 59 Legislative Districts and the corresponding 118 Representative Districts were required to be redrawn to accommodate the new population data. As a result of the COVID-19 pandemic, the United States Census Bureau stated that the necessary data for redistricting won't be available until September 2021.^[8] The Illinois Constitution states that:

"In the year following each Federal decennial census year, the General Assembly by law shall redistrict the Legislative Districts and the Representative Districts. If no redistricting plan becomes effective by June 30 of that year, a Legislative Redistricting Commission shall be constituted not later than July 10. The Commission shall consist of eight members, no more than four of whom shall be members of the same political party."^[9]
— Illinois Constitution Article IV Section 3b

With the possibility of this commission and the state constitution not specifying what population data to use in redistricting, Illinois Democrats went ahead and started the redistricting process. In redistricting, the committees used data from the American Community Survey. Democrats faced criticism from Republicans over the use of the ACS data in redistricting and shutting out Republicans in the redistricting process. Governor J. B. Pritzker faced criticism for his previous support in 2018 for an independent commission and pledge to veto any maps "in any way drafted or created by legislators, political party leaders and/or their staffs or allies."^[10]

District 1

The district has been represented by Democrat Aaron Ortiz since January 9, 2019.^[11] Ortiz was re-elected unopposed in 2020. He faced no ballot-listed candidate in the general election.

District 2

The district had been represented by Democrat Theresa Mah since January 11, 2017.^[11] Mah was re-elected unopposed in 2020. Mah was redistricted to the 24th district and was re-elected in her new boundaries. 24th district state representative Elizabeth Hernandez was the Democratic nominee and faced no other ballot-listed candidates in the general election.

District 3

The 3rd district covers parts of the Chicago neighborhoods of Belmont Cragin, Dunning, Hermosa, Logan Square, Montclare, Portage Park, and West Town. The district has been represented by Democrat Eva-Dina Delgado since her appointment on November 15, 2019.^[11] Delgado was elected unopposed in 2020. Jonathan Serrano, a United States Army veteran, was the Republican nominee.^[13]

District 4

The 4th district covers parts of the Chicago neighborhoods of Austin, Belmont Cragin, Hermosa, Humboldt Park, and West Town. The district had been represented by Democrat Delia Ramirez since January 9, 2019.^[11] Ramirez was re-elected unopposed in 2020. Ramirez ran in the 3rd congressional district and won. Lilian Jiménez, an attorney,^[14] Manuel Jimenez, Jr., and Hector Villafuerte all ran for the Democratic nomination. Jimenez won the Democratic nomination. JD Sloat was the Republican nominee.

District 5

The district has been represented by Democrat Lamont Robinson since January 9, 2019.^[11] Robinson was re-elected unopposed in 2020. Robinson faced no other ballot-listed candidate in the general election.

District 6

The district has been represented by Democrat Sonya Harper since her appointment in October 2015.^[11] Harper was re-elected unopposed in 2020. Harper defeated Carolynn Crump for the Democratic nomination. Leonard Griffin, a retiree and truck driver, was the Republican nominee.^[15]

District 7

The district has been represented by Democratic House Speaker Emanuel "Chris" Welch since January 9, 2013.^[11] Welch was re-elected unopposed in 2020. Eddie Kornegay, the CEO of a local tech startup, was the Republican nominee.^[16]

District 8

The district has been represented by Democrat La Shawn Ford since January 10, 2007.^[11] Ford was re-elected unopposed in 2020. Thomas Hurley, a member of Lions Club International, was the Republican nominee.^[17]

District 9

The district has been represented by Democrat Lakesia Collins since her appointment on July 24, 2020.^[11] Collins was elected unopposed in 2020. Collins faced no other ballot-listed candidate in the general election.

District 10

The district has been represented by Democrat Jawaharial Williams since his appointment on May 17, 2019.^[11] Williams was elected unopposed in 2020. Williams faced no other ballot-listed candidates in the general election.

District 11

The district has been represented by Democrat Ann Williams since January 12, 2011.^[11] Williams was re-elected unopposed in 2020. Marc James, an employee in hotel management, was the Republican nominee.^[18]

District 12

The district has been represented by Democrat Margaret Croke since January 2, 2021.^[11] Croke was first elected unopposed in 2020. Croke defeated Abigail Nichols for the Democratic nomination. George Kemper, an Army veteran, was the Republican nominee.^[19]

District 13

The district had been represented by Democrat Greg Harris since December 2006.^[11] Harris was re-elected unopposed in 2020. He is not seeking re-election.^[20] Five candidates ran for the Democratic nomination:

• Eileen Dordek, a mental health professional^[21]
• Hoan Huynh, an entrepreneur^[22]
• Fernando "Sergio" Mojica, a Chicago Public School principal^[23]
• Andrew Peters
• Joe Struck

One additional candidate, Becky Levin (policy director at the Cook County Sheriff's Office), ran for the office but dropped out before the primary election.^[24][25] Hoan Huynh won the Democratic nomination.

Alper Turan, a teacher,^[26] was the Republican nominee.

District 14

The district has been represented by Democrat Kelly Cassidy since her appointment in May 2011.^[11] Cassidy was re-elected unopposed in 2020. She faced no other ballot-listed candidates in the general election.

District 15

The district had been represented by Democrat John D'Amico since November 2004.^[11] D'Amico was re-elected unopposed in 2020. On November 5, 2021, D'Amico announced he was retiring from his seat effective the same day.^[27] Michael Kelly, an athletic director, was appointed on November 23, 2021.^[28] Kelly defeated Michael Rabbitt, a business transformation leader at Argonne National Laboratory,^[29] for the Democratic nomination. Mark Albers, the Board President of the Morton Grove Chamber of Commerce, was the Republican nominee.^[30]

District 16

The district had been represented by Democrat Denyse Wang Stoneback since January 13, 2021.^[11] Stoneback was first elected unopposed in 2020. Stoneback lost the Democratic nomination to Kevin Olickal, a former Cook County recovery specialist.^[31] Vince Romano, a financial advisor and Republican candidate in 2012, was the Republican nominee.^[32]

District 17

The district has been represented by Democrat Jennifer Gong-Gershowitz since January 9, 2019.^[11] Gong-Gershowitz was re-elected with 67.6% of the vote in 2020. Bradley Martin was the Republican nominee.

District 18

The district has been represented by Democrat Robyn Gabel since her appointment in April 2010.^[11] Gabel was re-elected with 72.3% of the vote in 2020. Charles Hutchinson, president of the Wilmette-Kenilworth Chamber of Commerce, was the Republican nominee.^[33]

District 19

The district had been represented by Democrat Lindsey LaPointe since her appointment on July 24, 2019.^[11] LaPointe was elected with 58.4% of the vote in 2020. LaPointe defeated Tina Wallace, a real estate broker, for the Democratic nomination.^[34] Michael Harn was the Republican nominee.

District 20

The district has been represented by Republican Bradley Stephens since his appointment in June 2019.^[11] Stephens was elected with 54.6% of the vote in 2020. Stephens faced no other ballot-listed candidates in the general election.

District 21

The district had been represented by Democrat Edgar Gonzalez, Jr. since his appointment on January 10, 2020.^[11] Gonzalez was elected unopposed in 2020. Gonzalez was redistricted to the 23rd district and won re-election in his new boundaries. 23rd district state representative Michael J. Zalewski lost to Abdelnasser Rashid, former Deputy Chief of Staff for Cook County Clerk David Orr, for the Democratic nomination.^[35] Matthew Schultz, executive director of Taxpayers United of America, was the Republican nominee.^[36]

District 22

The district had been represented by Mike Madigan since January 13, 1993 and had served in the Illinois House since January 13, 1971. He was the 67th Speaker of the House from 1983 to 1995 and the 69th Speaker of the House from 1997 to 2021.^[11] Madigan was re-elected with 100.0% of the vote in 2020. After suspending his campaign for the Speakership in 2021, Madigan announced he would resign as state representative at the end of February but ended up resigning on February 18.^[37][38] Chicago City Council infrastructure manager Edward Guerra Kodatt was appointed to the district on February 21, 2021 but would resign three days later on February 24, 2021.^[39] He resigned due to Madigan and Chicago's 13th ward alderman Marty Quinn's suggestion after they became aware of “allegations of questionable conduct.”^[40] Angelica Guerrero-Cuellar, an auxiliary board member for the National Museum of Mexican Art, was appointed on February 25, 2021.^[41] Carlos Alvarez, an insurance agent, was the Republican nominee.^[42]

District 23

The district had been represented by Democrat Michael J. Zalewski since December 2008.^[11] Zalewski was re-elected unopposed in 2020. Zalewski was redistricted to the 21st district and lost renomination in his new boundaries. 21st district state representative Edgar Gonzalez, Jr. was the Democratic nominee. Lupe Castillo was the Republican nominee.

District 24

The district had been represented by Democrat Elizabeth "Lisa" Hernandez since January 10, 2007.^[11] Hernandez was re-elected unopposed in 2020. Hernandez was redistricted to the 2nd district and was re-elected in her new boundaries. 2nd district state representative Theresa Mah was the Democratic nominee and faced no other ballot-listed candidates in the general election.

District 25

The district has been represented by Democrat Curtis Tarver since January 9, 2019.^[11] Tarver was re-elected unopposed in 2020. Tarver defeated Josef Michael Carr, a businessman,^[43] for the Democratic nomination. Lori Yokoyama was previously the Republican nominee but would drop out for unknown reasons. Tarver faced no other ballot-listed candidates in the general election.

District 26

The district has been represented by Democrat Kam Buckner since his appointment on January 18, 2019.^[11] Buckner was elected with 100.0% of the vote in 2020. She faced no other ballot-listed candidates in the general election.

District 27

The district has been represented by Democrat Justin Slaughter since his appointment in January 2017.^[11] Slaughter was re-elected unopposed in 2020. Slaughter defeated Jasimone Ward, an Emergency medical technician,^[44] for the Democratic nomination. Beth O'Neil was the Republican nominee.

District 28

The district has been represented by Democrat Robert Rita since January 8, 2003.^[11] Rita was re-elected with 99.4% of the vote in 2020. Rita defeated Paris Walker-Thomas, a write-in candidate, for the Democratic nomination.^[45] He faced no other ballot listed candidates in the general election.

District 29

The district has been represented by Democrat Thaddeus Jones since January 12, 2011.^[11] Jones was re-elected unopposed in 2020. Jones defeated Calumet City 2nd Ward Councilwoman Monet S. Wilson for the Democratic nomination.^[46] Jeffery Coleman, an entrepreneur, was the Republican nominee.^[47]

District 30

The district has been represented by Democrat Will Davis since January 8, 2003.^[11] Davis was re-elected unopposed in 2020. Patricia Bonk, a nurse,^[48] was the Republican nominee.

District 31

The district has been represented by Democrat Mary E. Flowers since January 9, 1985.^[11] Flowers was re-elected unopposed in 2020. Kenneth J. Yerkes, a dentist, was the Republican nominee.^[49]

District 32

The district had been represented by Democrat Andre Thapedi since January 14, 2009.^[11] Thapedi was re-elected unopposed in 2020. On January 31, 2021, Thapedi announced his intention to resign from his seat, stating the passing of his parents driving his intention.^[50] Thapedi resigned on March 17, 2021.^[51] City Colleges of Chicago associate athletics director Cyril Nichols was appointed to the seat on April 8, 2021 to fill the remainder of the term.^[52] Carl Kunz, a FINRA arbitrator, was the Republican nominee.^[53]

District 33

The district has been represented by Democrat Marcus C. Evans Jr. since his appointment in April 2012.^[11] Evans Jr. was re-elected unopposed in 2020. Quintin Barton was the Republican nominee.

District 34

The district has been represented by Democrat Nicholas Smith since his appointment on February 4, 2018.^[11] Smith was re-elected unopposed in 2020. Frederick Walls, a journeyman carpenter, was the Republican nominee.^[54]

District 35

The district has been represented by Democrat Frances Ann Hurley since January 9, 2013.^[11] Hurley was re-elected with 64.2% of the vote in 2020. Hurley defeated David Dewar, a write-in candidate, for the Democratic nomination.^[55] Herb Hebein, the Republican nominee in 2020, was the Republican nominee.

District 36

The district has been represented by Democrat Kelly M. Burke since January 12, 2011.^[11] Burke was re-elected unopposed in 2020. David Sheppard, a police officer, defeated Robbie Katherine Regina for the Republican nomination.^[56]

District 37

The district has been represented by Republican Tim Ozinga since January 13, 2021.^[11] Ozinga was first elected with 63.7% of the vote in 2020. Ozinga defeated August "O'Neill" Deuser, the Republican nominee for Illinois's 1st congressional district in 2016, for the Republican nomination. He faced no other ballot-listed candidates in the general election.

District 38

The district has been represented by Democrat Debbie Meyers-Martin since January 9, 2019.^[11] Meyers-Martin was re-elected with 77.5% of the vote in 2020. Tom Toolis, an attorney, was the Republican nominee.^[57]

District 39

The district has been represented by Democrat Will Guzzardi since January 14, 2015.^[11] Guzzardi was re-elected unopposed in 2020. Anthony Curran, an investment manager, was the Republican nominee.^[58]

District 40

The district has been represented by Democrat Jaime Andrade Jr. since his appointment in August 2013.^[11] Andrade Jr. was re-elected unopposed in 2020. He faced no other ballot-listed candidates in the general election.

District 41

The district has been represented by Democrat Janet Yang Rohr since January 13, 2021.^[11] Rohr was first elected with 51.7% of the vote in 2020. Jennifer Bruzan Taylor, a Naperville City Councilwoman,^[59] was the Republican nominee. Taylor would drop out from the race due to family matters. Rich Janor, Naperville Park District Commissioner, was appointed as the Republican nominee.^[60]

District 42

The district had been represented by Republican Amy Grant since January 9, 2019.^[11] Grant was re-elected with 51.9% of the vote in 2020. Grant was redistricted to the 47th district and was re-elected in her new boundaries. 48th district state representative Terra Costa Howard was the Democratic nominee. Stefanie Hood, a lawyer, was the Republican nominee.^[61]

District 43

The district has been represented by Democrat Anna Moeller since her appointment in March 2014.^[11] Moeller was re-elected unopposed in 2020. Angela Hallock Nowak, a teacher, was the Republican nominee.^[62]

District 44

The district has been represented by Democrat Fred Crespo since January 10, 2007.^[11] Crespo was re-elected with 100.0% of the vote in 2020. Patrick Thomas Brouillette, a business owner,^[63] was the Republican nominee.

District 45

The district had been represented by Republican Seth Lewis since January 13, 2021.^[11] Lewis was first elected in 53.2% of the vote in 2020. Lewis ran for the Illinois Senate in the 24th Legislative district. 47th district state representative Deanne Mazzochi was the Republican nominee. Jenn Ladisch Douglass, a lawyer, was the Democratic nominee.^[64]

District 46

The district had been represented by Democrat Deb Conroy since January 9, 2013.^[11] Conroy was re-elected unopposed in 2020. Conroy ran for DuPage County Executive.^[65] Diane Blair-Sherlock, an attorney, was the Democratic nominee.^[66] Robert Stevens, a truck driver, was the Republican nominee.^[67]

District 47

The district had been represented by Republican Deanne Mazzochi since her appointment in July 2018.^[11] Mazzochi was re-elected with 54.0% of the vote in 2020. Mazzochi was redistricted to the 45th district and lost re-election in her new boundaries. 42nd district state representative Amy Grant was the Republican nominee. Jackie Williamson, a benefits specialist, was the Democratic nominee.^[68]

District 48

The district had been represented by Democrat Terra Costa Howard since January 9, 2019.^[11] Howard was re-elected with 53.8% of the vote in 2020. Howard was redistricted to the 42nd district and was re-elected in her new boundaries. Azam Nizamuddin, an attorney, was the Democratic nominee.^[69] Jennifer Sanalitro, a sales executive, was the Republican nominee.^[70]

District 49

The district has been represented by Democrat Maura Hirschauer since January 13, 2021.^[11] Hirschauer was first elected with 54.2% of the vote in 2020. Bartlett mayor Kevin Wallace was the Republican nominee.^[71]

District 50

The district had been represented by Republican Keith R. Wheeler since January 14, 2015.^[11] Wheeler was re-elected with 56.4% of the vote in 2020. Wheeler was redistricted to the 83rd Representative district and lost re-election in his new boundaries. 83rd district state representative Barbara Hernandez was the Democratic nominee. Donald Walter, the director of diocesan partnerships at the Augustine Institute, was the Republican nominee.^[72]

District 51

The district had been represented by Republican Chris Bos since January 13, 2021.^[11] Bos was first elected with 50.9% of the vote in 2020. Nabeela Syed, an organizer, won the Democratic nomination after defeating Chelsea Laliberte Barnes, a licensed social worker, in the primary election.^[73][74]

District 52

The district has been represented by Republican Martin McLaughlin since January 13, 2021.^[11] McLaughlin was first elected with 54.3% of the vote in 2020. Mary Morgan, a curriculum assistant for Wauconda Community Unit School District 118, was the Democratic nominee.^[76]

District 53

The district has been represented by Democrat Mark L. Walker since January 9, 2019. He formerly represented the 66th district from January 14, 2009 to January 12, 2011.^[11] Walker was re-elected unopposed in 2020. Jack Vrett, an attorney, was the Republican nominee.^[77]

District 54

The district had been represented by Republican Tom Morrison since January 12, 2011.^[11] Morrison was not seeking reelection in 2022. Michele Hunter, an attorney, was the Republican nominee.^[78] Mary Beth Canty, an attorney, was the Democratic nominee.^[79]

District 55

The district has been represented by Democrat Marty Moylan since January 9, 2013.^[11] Moylan was re-elected with 72.6% of the vote in 2020. Michael M. Lupo, a small business owner, was the Republican nominee.^[80]

District 56

The district has been represented by Democrat Michelle Mussman since January 12, 2011.^[11] Mussman was re-elected with 57.6% of the vote in 2020. E. Dale Litney, a self-employed sports official, was the Republican nominee.^[81]