The Hokkaido at-large district is a constituency of the House of Councillors in the Diet of Japan (national legislature). It consists of the prefecture (dō) of Hokkai[dō] and is represented by six Councillors electing three at a time every three years by single non-transferable vote for six-year terms. In the election period from 2019 to 2022, Hokkaido's Councillors are (party affiliation as of September 2019):

After the House of Councillors had replaced the House of Peers according to the constitution of 1947, Hokkaido was represented by eight Councillors. In the early years of the 1955 System, all four seats went to the two major postwar parties, the Liberal Democratic Party (LDP) and the Japan Socialist Party (JSP). But smaller parties such as the Japanese Communist Party (JCP) had a chance to pick up seats in Hokkaido as the vote share sufficient to gain a seat was often significantly below 20 percent. The high number of candidates increased the risk of vote splitting for the major parties: In 1974, two incumbent LDP candidates and conservative independent Tatsuo Takahashi ranked 5th, 6th and 7th leaving all four seats to the center-left to left opposition parties Kōmeitō, JSP and JCP.

In a major reapportionment in 1994 the number of Councillors from Hokkaido was halved to four. It became effective in the 1995 and 1998 elections. During the period as two-member district, Hokkaidō usually split seats evenly between opposition and ruling parties like most two-member districts – although the Democrats unsuccessfully aimed for both seats in the 2004, 2007 and 2010 elections. In another 2015 reapportionment, effective in the two classes from the 2016 and 2019 elections, Hokkaidō's representation in the upper house was raised to six.

Elected Councillors

class of 1947 election year class of 1950
#1
(1947: #1, 6-year term)
(1950: #5, 3-year term)		 #2
(1947: #2, 6-year term)		 #3
(1947: #3, 6-year term)		 #4
(1947: #4, 6-year term)		 #1
(1947: #5, 3-year term)		 #2
(1947: #6, 3-year term)		 #3
(1947: #7, 3-year term)		 #4
(1947: #8, 3-year term)
Junsuke Itaya †
(JLP)		 Sueji Hori
(Indep.)		 Makoto Chiba
(JSP)		 Misao Kaga
(Indep.)[party 1]		 1947[1] Katsuzō Wakaki
(Indep.)[party 2]		 Gengo Kinoshita
(JSP)		 Keiki Machimura
(Indep.)[party 3]		 Yonesaburō Kobayashi
(Indep.) [party 4]
Eiji Arima
(DP)		 1950
incl. by-election[2]		 Gengo Kinoshita
(JSP)		 Takashi Azuma
(Farmers Cooperative Party)		 Katsuzō Wakaki
(JSP)		 Sadayoshi Matsuura
(Farmers Cooperative Party)
Makoto Chiba
(JSP, left)		 Katsutarō Kita
(Indep.)[party 5]		 Sueji Hori
(Yoshida LP)		 Eiji Arima
(Progressive)		 1953[3]
1956[4] Hidetoshi Tomabechi
(LDP)		 Tadashi Ōya
(JSP)		 Takashi Azuma
(JSP)		 Shinichi Nishida
(LDP)
Isao Yoneta
(JSP)		 Sueji Hori
(LDP)		 Ihei Ikawa
(LDP)		 Makoto Chiba
(JSP)		 1959[5]
1962[6] Tadashi Ōya
(JSP)		 Tokuichi Kobayashi
(Indep.)[party 6]		 Chūzaburō Yoshida
(JSP)
Seiichi Kawamura
(JSP)		 Ihei Ikawa
(LDP)		 Yūnosuke Takahashi
(LDP)		 Genshō Takeda
(JSP)		 1965[7]
1968[8] Yōichi Kawaguchi
(LDP)		 Shinichi Nishida
(LDP)		 Chūzaburō Yoshida
(JSP)
Yūnosuke Takahashi
(LDP)		 Seiichi Kawamura
(JSP)		 Genshō Takeda
(JSP)		 Masaichi Iwamoto
(LDP)		 1971[9]
1974[10] Sadako Ogasawara
(JCP)		 Chūzaburō Yoshida
(JSP)		 Takakatsu Tsushima
(JSP)		 Takehiko Aizawa
(Kōmeitō)
Shūji Kita
(LDP)		 Keiichi Nakamura
(LDP)		 Kaneyasu Marutani
(JSP)		 Seiichi Kawamura
(JSP)		 1977[11]
1980[12] Masaaki Takagi
(LDP)		 Masamitsu Iwamoto
(LDP)		 Sadako Ogasawara
(JCP)
Hisamitsu Sugano
(JSP)		 Masami Kudō
(LDP)		 1983[13]
1986[14] Takakatsu Tsushima
(JSP)		 Masaaki Takagi
(LDP)
Yasuko Takemura
(Indep.)[party 7]		 Shūji Kita
(LDP)		 Yūko Takasaki
(JCP)		 1989[15]
1992[16] Hisashi Kazama
(Kōmeitō)		 Noriyuki Nakao
(Indep.)[party 8]		 Naoki Minezaki
(JSP)		 Masaaki Takagi
(LDP)
Hisamitsu Sugano
(JSP)		 Katsuya Ogawa
(NFP)		 – 1995[17]
1998[18] Naoki Minezaki
(DPJ)		 Yoshio Nakagawa
(LDP)		 –
Chūichi Date
(LDP)		 Katsuya Ogawa
(DPJ)		 2001[19]
2004[20] Yoshio Nakagawa
(LDP)		 Naoki Minezaki
(DPJ)
Katsuya Ogawa
(DPJ)		 Chūichi Date
(LDP)		 2007[21]
2010[22] Gaku Hasegawa
(LDP)		 Eri Tokunaga
(DPJ)
Chūichi Date
(LDP)		 Katsuya Ogawa
(DPJ)		 2013[23]
2016[24] Eri Tokunaga
(DP)		 Yoshio Hachiro
(DP)		 –
Harumi Takahashi
(LDP)		 Kenji Katsube
(CDP)		 Tsuyohito Iwamoto
(LDP)		 – 2019[25]
  1. ↑ joined Ryokufūkai
  2. ↑ joined JSP
  3. ↑ joined Ryokufūkai
  4. ↑ joined JLP
  5. ↑ joined Ryokufūkai
  6. ↑ joined LDP
  7. ↑ JSP support
  8. ↑ JSP support

Recent election results

Notes:

  • Decimals from anbunhyō ("fractional proportional votes" from ambiguous votes) omitted; note that the rounded whole numbers may still include fractions of numbers >2 of ambiguous votes and do not necessarily represent "whole" voters
  • (2016 only) (*): ineligible as runner-up replacement (kuriage-tōsen), lost deposit
2019[25]
Party Candidate Votes % ±%
LDP Harumi Takahashi 828,220 34.4 new
CDP Kenji Katsube 523,737 21.7 new
LDP Tsuyohito Iwamoto 454,285 18.8 new
JCP Kazuya Hatayama 265,862 11.0 new
DPP Nami Haraya 227,174 9.4 new
N-Koku Takahira Yamamoto 63,308 2.6 new
Meeting to Decide About Euthanasia Osamu Nakamura 23,785 1.0 -0.1
HRP Yoshinori Moriyama 13,724 0.6 -0.2
The Worker's Party aiming for liberation of labor Seiji Iwase 10,108 0.4 new
2016[24]
Party Candidate Votes % ±%
LDP (K) Gaku Hasegawa 648,269 25.5 -7.8
DP (SDP Hokkaidō) Eri Tokunaga 559,996 22.0 -3.6
DP (SDP Hokkaidō) Yoshio Hachiro 491,129 19.3 new
LDP (K, NPD) Katsuhiro Kakiki 482,688 19.0 new
JCP Tsuneto Mori 239,564 9.4 (to 2013) -2.0
Kokoro Kazuo Satō (*) 34,092 1.3 new
Support no party Osamu Nakamura (*) 29,072 1.1 new
Independent Yoshihiro Iida (*) 26,686 1.0 new
HRP Yoshinori Moriyama (*) 21,006 0.8 (to 2013) -0.2
Independent Kan'yō Mizukoshi (*) 12,944 0.5 new
2013[23]
Party Candidate Votes % ±%
LDP (NK) Chūichi Date 903,693 37.7
DPJ Katsuya Ogawa 583,995 24.4
NPD Takahiro Asano 352,434 14.7
JCP Tsuneto Mori 272,102 11.4
YP Takanobu Azumi 261,802 10.9
HRP Yoshinori Moriyama 23,194 1.0
Turnout 2,502,360 54.41[26] (to 2010) -7.48
2010[22]
Party Candidate Votes % ±%
LDP Gaku Hasegawa 948,267 34.3
DPJ Eri Tokunaga 708,523 25.6
DPJ Masashi Fujikawa 567,167 20.5
YP Ken'ichi Nakagawa 320,992 11.6
JCP Kazuya Hatayama 200,231 7.2
HRP Makoto Ōbayashi 22,166 0.8
Turnout 2,849,955 61.89[27] (to 2007) -0.51
2007[21]
Party Candidate Votes % ±%
DPJ Katsuya Ogawa 1,018,597 36.0
LDP (NK) Chūichi Date 757,463 26.8
Independent (NPD, DPJ, PNP) Kaori Sahara 621,497 22.0
JCP Kazuya Hatayama 206,463 7.3
Independent Hideyoshi Hashiba 103,282 3.7
SDP Takao Asano 79,474 2.8
Independent Masayuki Arakawa 22,154 0.8
Ishin Nobuhito Sendai 18,234 0.6
Turnout 2,907,079 62.40[28] (to 2004) +0.66
2004[20]
Party Candidate Votes % ±%
LDP Yoshio Nakagawa 741,831 26.7
DPJ Naoki Minezaki 618,277 22.3
DPJ Masahito Nishikawa 552,993 19.9
Independent Muneo Suzuki 485,382 17.5
JCP Chiharu Oka 254,338 9.2
SDP Keiko Yamauchi 106,631 3.8
Ishin Nobuhito Sendai 19,020 0.7
2001[19]
Party Candidate Votes % ±%
LDP Chūichi Date 985,274 39.3
DPJ Katsuya Ogawa 683,704 27.2
JCP Satoshi Miyauchi 284,575 11.3
LP Masahito Nishikawa 196,348 7.8
SDP Yoshiko Sugiyama 165,670 6.6
WP Tamiko Matsumura 87,597 3.5
Independent Mitsuhiro Yokoyama 36,119 1.4
LL Akifumi Kumagai 33,500 1.3
NSP Nobuyuki Saitō 25,261 1.0
Ishin Nobuhito Sendai 11,469 0.5
1998[18]
Party Candidate Votes % ±%
DPJ Naoki Minezaki 804,611 31.2
LDP Yoshio Nakagawa 723,786 28.1
JCP Tomoko Uchiyama 605,119 23.5
LP Kentarō Ono 161,505 6.3
SDP Shirō Kayano 146,159 5.7
NSP Masami Mizuyoshi 34,374 1.3
YLP Ken'ichi Sawada 33,390 1.3
LL Ryōko Matsukawa 32,557 1.3
Independent Hideo Murata 28,480 1.1
Ishin Nobuhito Sendai 7,249 0.3
1995[17]
Party Candidate Votes % ±%
JSP Hisamitsu Sugano 563,029 27.5
NFP Katsuya Ogawa 511,139 25.3
LDP Yoshitaka Kimoto 488,807 24.2
JCP Yūko Takasaki 392,714 19.5
New Era Etsuko Yoshino 40,106 2.0
Independent Hiroshi Maeya 21,716 1.1

References

  1. ↑ 参議院>第1回参議院議員選挙>北海道選挙区. senkyo.janjan.jp ザ･選挙 (in Japanese). Heartbeats. Retrieved 2013-04-03.
  2. ↑ 参議院>第2回参議院議員選挙>北海道選挙区. senkyo.janjan.jp ザ･選挙 (in Japanese). Heartbeats. Retrieved 2013-04-03.
  3. ↑ 参議院>第3回参議院議員選挙>北海道選挙区. senkyo.janjan.jp ザ･選挙 (in Japanese). Heartbeats. Retrieved 2013-04-03.
  4. ↑ 参議院>第4回参議院議員選挙>北海道選挙区. senkyo.janjan.jp ザ･選挙 (in Japanese). Heartbeats. Retrieved 2013-04-03.
  5. ↑ 参議院>第5回参議院議員選挙>北海道選挙区. senkyo.janjan.jp ザ･選挙 (in Japanese). Heartbeats. Retrieved 2013-04-03.
  6. ↑ 参議院>第6回参議院議員選挙>北海道選挙区. senkyo.janjan.jp ザ･選挙 (in Japanese). Heartbeats. Retrieved 2013-04-03.
  7. ↑ 参議院>第7回参議院議員選挙>北海道選挙区. senkyo.janjan.jp ザ･選挙 (in Japanese). Heartbeats. Retrieved 2013-04-03.
  8. ↑ 参議院>第8回参議院議員選挙>北海道選挙区. senkyo.janjan.jp ザ･選挙 (in Japanese). Heartbeats. Retrieved 2013-04-03.
  9. ↑ 参議院>第9回参議院議員選挙>北海道選挙区. senkyo.janjan.jp ザ･選挙 (in Japanese). Heartbeats. Retrieved 2013-04-03.
  10. ↑ 参議院>第10回参議院議員選挙>北海道選挙区. senkyo.janjan.jp ザ･選挙 (in Japanese). JANJAN. Retrieved 2010-05-09.
  11. ↑ 参議院>第11回参議院議員選挙>北海道選挙区. senkyo.janjan.jp ザ･選挙 (in Japanese). Heartbeats. Retrieved 2013-04-03.
  12. ↑ 参議院>第12回参議院議員選挙>北海道選挙区. senkyo.janjan.jp ザ･選挙 (in Japanese). Heartbeats. Retrieved 2013-04-03.
  13. ↑ 参議院>第13回参議院議員選挙>北海道選挙区. senkyo.janjan.jp ザ･選挙 (in Japanese). Heartbeats. Retrieved 2013-04-03.
  14. ↑ 参議院>第14回参議院議員選挙>北海道選挙区. senkyo.janjan.jp ザ･選挙 (in Japanese). Heartbeats. Retrieved 2013-04-03.
  15. ↑ 参議院>第15回参議院議員選挙>北海道選挙区. senkyo.janjan.jp ザ･選挙 (in Japanese). Heartbeats. Retrieved 2013-04-03.
  16. ↑ 参議院>第16回参議院議員選挙>北海道選挙区. senkyo.janjan.jp ザ･選挙 (in Japanese). Heartbeats. Retrieved 2013-04-03.
  17. 1 2 参議院>第17回参議院議員選挙>北海道選挙区. senkyo.janjan.jp ザ･選挙 (in Japanese). Heartbeats. Retrieved 2013-04-03.
  18. 1 2 参議院>第18回参議院議員選挙>北海道選挙区. senkyo.janjan.jp ザ･選挙 (in Japanese). Heartbeats. Retrieved 2013-04-03.
  19. 1 2 参議院>第19回参議院議員選挙>北海道選挙区. senkyo.janjan.jp ザ･選挙 (in Japanese). Heartbeats. Retrieved 2013-04-03.
  20. 1 2 参議院>第20回参議院議員選挙>北海道選挙区. senkyo.janjan.jp ザ･選挙 (in Japanese). Heartbeats. Retrieved 2013-04-03.
  21. 1 2 参議院>第21回参議院議員選挙>北海道選挙区. senkyo.janjan.jp ザ･選挙 (in Japanese). Heartbeats. Retrieved 2013-04-03.
  22. 1 2 参議院>第22回参議院議員選挙>北海道選挙区. senkyo.janjan.jp ザ･選挙 (in Japanese). Heartbeats. Retrieved 2013-04-03.
  23. 1 2 参院選2013>選挙結果>選挙区>北海道. Yomiuri Shimbun (in Japanese). Retrieved 2013-07-22.
  24. 1 2 Yomiuri Online, House of Councillors election 2016: Results in Hokkaidō
  25. 1 2 NHK, House of Councillors election 2019: Results in Hokkaidō
  26. ↑ Hokkai-dō/prefectural government (Hokkai[-]dōchō), electoral commission: past election results, 23rd House of Councillors election, turnout
  27. ↑ Hokkaidō government, electoral commission: past election results, 22rd regular election of the House of Councillors, turnout
  28. ↑ Hokkaidō government, electoral commission: past election results, 21st regular election of the House of Councillors, turnout

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