Hokkaido proportional representation block

Hokkaidō Proportional Representation Block
Hokkaidō Proportional Representation Block
Parliamentary constituency; for the Japanese House of Representatives
	Map of House of Representatives proportional blocks, with the Hokkaidō block highlighted
Prefecture	Hokkaidō
Electorate	4,321,464 (2026)
Current constituency
Created	1994
Number of members	8

The Hokkaidō proportional representation block (Japanese: 比例[代表]北海道ブロック, Hepburn: Hirei [daihyō] Hokkaidō burokku) or in official usage the "Hokkaidō electoral district" (北海道選挙区, Hokkaidō senkyo-ku) is one of eleven proportional representation (PR) blocks for the House of Representatives in the Diet of Japan. It consists of Hokkaidō and is one of two PR blocks that covers only one prefecture, the other being Tokyo. Following the introduction of proportional voting, it elected nine representatives in the election of 1996. Since 2000, the Hokkaidō PR block has been represented by eight representatives.

Results timeline

Vote share

Party		1996	2000	2003	2005	2009	2012	2014	2017	2021	2024	2026
	LDP	28.20	25.56	31.03	29.14	24.24	26.44	29.79	28.81	33.60	26.78	37.01
	DPJ^[a]	31.80	31.24	40.82	33.79	40.55	18.23	27.56
	NFP	21.05
	JCP	15.11	12.69	8.97	7.48	7.26	6.99	12.09	8.51	8.06	7.09	5.44
	Komeito		12.80	13.97	11.42	10.67	11.04	12.30	11.03	11.46	10.58
	SDP		8.87	5.21	4.73	3.42	1.85	2.14	1.38	1.61	1.30	1.29
	LP		8.21
	Daichi				13.44	13.03	13.25		8.37
	Ishin^[b]						12.75	9.89	2.76	8.38	4.05	3.81
	Your						5.94
	TPJ						3.13
	CDP								26.38	26.58	29.01
	KnT								12.25
	Reiwa									3.97	7.42	3.09
	DPFP									2.87	8.03	8.88
	CPJ										2.59	2.44
	Sanseitō										2.38	6.63
	CRA											24.60
	Mirai											5.46
Others		3.84^[c]	0.63^[d]			0.83^[e]	0.40^[f]	6.22^[g]	0.52^[h]	3.47^[i]	0.77^[j]	1.33^[k]

Turnout			65.52	62.93	71.01	73.63	58.72	56.34	60.29	58.78	56.15	57.92

Seat distribution

Election	Distribution	Seats
1996		9
2000		8
2003		8
2005		8
2009		8
2012		8
2014		8
2017		8
2021		8
2024		8
2026		8

List of representatives

Elected Representatives
Term	1996-2000			2000-03		2003-05	2005-09		2009-12		2012-14		2014-17		2017-2021	2021-2024		2024-
Rep. Party	Kaori Maruya NFP	Kaori Maruya Komeito (from 1998)							Hisashi Inatsu Komeito		Hidemichi Satō Komeito					Takako Suzuki LDP		Naoko Shinoda CDP
Rep. Party	Kenji Kodama JCP					Hiroko Nakano DPJ	Seiji Ōsaka DPJ		Hiroko Nakano DPJ		Takahiro Yokomichi DPJ		Kazuya Hatayama JCP		Hiroshi Kamiya CDP	Kureha Otsuki CDP		Yoshitaka Itō LDP
Rep. Party	Seiichi Kaneda DPJ					Chiyomi Kobayashi DPJ	Satoshi Arai (resigned 2007) DPJ	Tomohiro Ishikawa DPJ	Maya Yamazaki DPJ		Satoshi Arai DPJ			Satoshi Arai DP (from 2016)	Maki Ikeda CDP	Kōichi Watanabe LDP		Masato Nishikawa CDP
Rep. Party	Seiichi Ikehata DPJ			Wakio Mitsui DPJ		Kenkō Matsuki DPJ			Tatsumaru Yamaoka DPJ		Miho Takahashi JRP	Miho Takahashi JIP (from 2014)	Takako Suzuki DPJ	Takako Suzuki Ind. (from 2016)	Hiranao Honda CDP	Yutaka Arai CDP		Hiroyuki Nakamura LDP
Rep. Party	Kenji Nakazawa DPJ					Hidenori Sasaki DPJ	Takamori Yoshikawa LDP		Hitomi Kudō DPJ		Shigeaki Katsunuma LDP		Kenkō Matsuki JIP	Kenkō Matsuki DP (from 2016)	Tatsumaru Yamaoka Kibō	Hidemichi Satō Komeito
Rep. Party	Toshiyuki Wanibuchi NFP	Toshiyuki Wanibuchi Lib. (from 1998)		Keiko Yamauchi SDP		Eikō Kaneta LDP	Yukari Iijima LDP		Nobutaka Machimura (resigned 2010) LDP	Hiroshi Imazu LDP	Kōichi Watanabe LDP					Manabu Horii LDP (resigned)	Yusuke Takahashi LDP	Hideyo Kawarada CDP
Rep. Party	Muneo Suzuki LDP				Muneo Suzuki Ind. (resigned from LDP, 2002)	Gaku Ishizaki LDP	Hiroshi Imazu LDP		Tsutomu Takebe LDP		Seiichi Shimizu LDP		Hiroshi Imazu LDP		Takako Suzuki LDP	Hiroshi Kamiya CDP		Jun Mukaiyama LDP
Rep. Party	Takamori Yoshikawa LDP			Hirofumi Iwakura LDP		Takafumi Yamashita LDP	Muneo Suzuki (arrested 2010) NPD			Takahiro Asano NPD	Tomohiro Ishikawa (resigned 2013) NPD	Takako Suzuki NPD	Kazuo Maeda LDP		Toshimitsu Funahashi LDP	Yūko Nakagawa LDP		Hidetake Usuki DPP
Rep. Party	Kōkō Satō LDP		Seat abolished

Election results

2026

2026 results in the Hokkaido PR block
Party		Votes	Swing	%	Seats	+/–
	Liberal Democratic Party (LDP)	911,742	37.01	10.23	4	1
	Centrist Reform Alliance (CRA)^[l]	605,889	24.60	14.99	3	1
	Democratic Party For the People (DPFP)	218,850	8.88	0.85	1	0
	Sanseitō	163,329	6.63	4.25	0	0
	Team Mirai	134,613	5.46	New	0	New
	Japanese Communist Party (JCP)	134,084	5.44	1.65	0	0
	Japan Innovation Party (Ishin)	93,967	3.81	0.24	0	0
	Reiwa Shinsengumi (Reiwa)	76,099	3.09	4.33	0	0
	Conservative Party of Japan (CPJ)	60,119	2.44	0.15	0	0
	Tax Cuts Japan and Yukoku Alliance (Genyu)	32,878	1.33	New	0	New
	Social Democratic Party (SDP)	31,753	1.29	0.01	0	0
Total		2,463,323	100.00		8

Invalid votes		39,650	1.58
Turnout		2,502,973	57.92	1.77
Registered voters		4,321,464

2024

2024 results in the Hokkaido PR block
Party		Votes	Swing	%	Seats	+/–
	Constitutional Democratic Party of Japan (CDP)	694,578	29.01	2.43	3	0
	Liberal Democratic Party (LDP)	641,127	26.78	6.82	3	1
	Komeito	253,344	10.58	0.88	1	0
	Democratic Party For the People (DPFP)	192,303	8.03	5.16	1	1
	Reiwa Shinsengumi (Reiwa)	177,620	7.42	3.45	0	0
	Japanese Communist Party (JCP)	169,799	7.09	0.97	0	0
	Japan Innovation Party (Ishin)	96,954	4.05	4.33	0	0
	Conservative Party of Japan (CPJ)	61,903	2.59	New	0	New
	Sanseitō	57,002	2.38	New	0	New
	Social Democratic Party (SDP)	31,134	1.30	0.31	0	0
	Consideration the Euthanasia System	18,455	0.77	1.03	0	0
Total		2,394,219	100.00		8

Invalid votes		60,780	2.48
Turnout		2,454,999	56.15	2.64
Registered voters		4,372,575

2021

2021 results in the Hokkaido PR block
Party		Votes	Swing	%	Seats	+/–
	Liberal Democratic Party (LDP)	863,300	33.60	4.79	4	1
	Constitutional Democratic Party of Japan (CDP)	682,912	26.58	0.20	3	0
	Komeito	294,371	11.46	0.43	1	0
	Japan Innovation Party (Ishin)	215,344	8.38	5.62	0	0
	Japanese Communist Party (JCP)	207,189	8.06	0.45	0	0
	Reiwa Shinsengumi (Reiwa)	102,086	3.97	New	0	New
	Democratic Party For the People (DPFP)	73,621	2.87	New	0	New
	No Party Support	46,142	1.80	New	0	New
	NHK Party	42,916	1.67	New	0	New
	Social Democratic Party (SDP)	41,248	1.61	0.23	0	0
Total		2,569,129	100.00		8

Invalid votes		66,706	2.53
Turnout		2,635,835	58.78	1.51
Registered voters		4,484,166

2017

2017 results in the Hokkaido PR block
Party		Votes	Swing	%	Seats	+/–
	Liberal Democratic Party (LDP)	779,903	28.81	0.98	3	0
	Constitutional Democratic Party of Japan (CDP)	714,032	26.38	New	3	New
	Kibō no Tō	331,463	12.25	New	1	New
	Komeito	298,573	11.03	1.27	1	0
	Japanese Communist Party (JCP)	230,316	8.51	3.58	0	1
	Japan Innovation Party (Ishin)	74,701	2.76	New	0	New
	Social Democratic Party (SDP)	37,374	1.38	0.76	0	0
	New Party Daichi	226,552	8.37	New	0	New
	Happiness Realization Party (HRP)	13,983	0.52	0.03	0	0
Total		2,706,897	100.00		8

Invalid votes		57,224	2.07
Turnout		2,764,121	60.29	3.95
Registered voters		4,584,480

2014

2014 results in the Hokkaido PR block
Party		Votes	Swing	%	Seats	+/–
	Liberal Democratic Party (LDP)	744,748	29.79	3.35	3	0
	Democratic Party of Japan (DPJ)	688,922	27.56	9.33	2	0
	Komeito	307,534	12.30	1.26	1	0
	Japanese Communist Party (JCP)	302,251	12.09	5.10	1	1
	Japan Innovation Party (JIP)	247,342	9.89	2.86	1	0
	Social Democratic Party (SDP)	53,604	2.14	0.29	0	0
	No Party Support	104,854	4.19	New	0	New
	Party for Future Generations	38,342	1.53	New	0	New
	Happiness Realization Party (HRP)	12,267	0.49	0.09	0	0
Total		2,499,864	100.00		8

Invalid votes		62,292	2.43
Turnout		2,562,156	56.34	2.38
Registered voters		4,547,668

2012

2012 results in the Hokkaido PR block
Party		Votes	Swing	%	Seats	+/–
	Liberal Democratic Party (LDP)	692,304	26.44	2.20	3	1
	Democratic Party of Japan (DPJ)	477,356	18.23	22.32	2	2
	New Party Daichi	346,858	13.25	0.22	1	0
	Japan Restoration Party (JRP)	333,760	12.75	New	1	New
	Komeito	289,011	11.04	0.37	1	0
	Japanese Communist Party (JCP)	182,968	6.99	0.27	0	0
	Your Party	155,522	5.94	New	0	New
	Tomorrow Party of Japan (TPJ)	81,838	3.13	New	0	New
	Social Democratic Party (SDP)	48,351	1.85	1.56	0	0
	Happiness Realization Party (HRP)	10,506	0.40	0.21	0	0
Total		2,618,474	100.00		8

Invalid votes		68,557	2.55
Turnout		2,687,031	58.72	14.91
Registered voters		4,575,652

2009

2009 results in the Hokkaido PR block
Party		Votes	Swing	%	Seats	+/–
	Democratic Party of Japan (DPJ)	1,348,318	40.55	6.76	4	1
	Liberal Democratic Party (LDP)	805,895	24.24	4.90	2	1
	New Party Daichi	433,122	13.03	0.41	1	0
	Komeito	354,886	10.67	0.75	1	0
	Japanese Communist Party (JCP)	241,345	7.26	0.22	0	0
	Social Democratic Party (SDP)	113,562	3.42	1.31	0	0
	Happiness Realization Party (HRP)	20,276	0.61	New	0	New
	New Party Essence	7,399	0.22	New	0	New
Total		3,324,803	100.00		8

Invalid votes		66,400	1.96
Turnout		3,391,203	73.63	2.62
Registered voters		4,605,761

2005

2005 results in the Hokkaido PR block
Party		Votes	Swing	%	Seats	+/–
	Democratic Party of Japan (DPJ)	1,090,727	33.79	7.02	3	1
	Liberal Democratic Party (LDP)	940,705	29.14	1.89	3	0
	New Party Daichi	433,938	13.44	New	1	New
	Komeito	368,552	11.42	2.55	1	0
	Japanese Communist Party (JCP)	241,371	7.48	1.49	0	0
	Social Democratic Party (SDP)	152,646	4.73	0.48	0	0
Total		3,227,939	100.00		8

Invalid votes		68,607	2.08
Turnout		3,296,546	71.01	8.08
Registered voters		4,642,310

2003

2003 results in the Hokkaido PR block
Party		Votes	Swing	%	Seats	+/–
	Democratic Party of Japan (DPJ)	1,153,471	40.82	9.58	4	1
	Liberal Democratic Party (LDP)	876,653	31.03	5.47	3	1
	Komeito	394,843	13.97	1.17	1	0
	Japanese Communist Party (JCP)	253,442	8.97	3.72	0	1
	Social Democratic Party (SDP)	147,146	5.21	3.66	0	1
Total		2,825,555	100.00		8

Invalid votes		88,424	3.03
Turnout		2,913,979	62.93	2.59
Registered voters		4,630,154

2000

2000 results in the Hokkaido PR block
Party		Votes	Swing	%	Seats	+/–
	Democratic Party of Japan (DPJ)	898,678	31.24	0.56	3	0
	Liberal Democratic Party (LDP)	735,318	25.56	2.64	2	1
	Komeito	368,198	12.80	New	1	New
	Japanese Communist Party (JCP)	365,061	12.69	2.42	1	0
	Social Democratic Party (SDP)	255,319	8.87	New	1	New
	Liberal Party (LP)	236,301	8.21	New	0	New
	Liberal League (LL)	17,987	0.63	New	0	New
Total		2,876,862	100.00		8	1

Invalid votes		122,134	4.07
Turnout		2,998,996	65.52
Registered voters		4,577,169

1996

1996 results in the Hokkaido PR block
Party		Votes	%	Seats
	Democratic Party (DP)	835,042	31.80	3
	Liberal Democratic Party (LDP)	740,677	28.20	3
	New Frontier Party (NFP)	552,847	21.05	2
	Japanese Communist Party (JCP)	396,923	15.11	1
	New Socialist Party (NSP)	100,807	3.84	0
Total		2,626,296	100.00	9

References

Election Resources
Heartbeats Corp., The Senkyo: Results of general and by-elections for the House of Representatives since 1890

Notes

↑ 1996 DP
↑ 2012 JRP, 2014 JIP
↑ NSP 3.84
↑ LL 0.63
↑ HRP 0.61, Essence 0.22
↑ HRP 0.40
↑ No Party Support 4.19, Generations 1.53, HRP 0.49
↑ HRP 0.52
↑ No Party Support 1.80, NHK 1.67
↑ Euthanasia 0.77
↑ Genyu 1.33
↑ Swings compared to CDP and Komeito

[1] 1996 DP

[2] 2012 JRP, 2014 JIP

[3] NSP 3.84

[4] LL 0.63

[5] HRP 0.61, Essence 0.22

[6] HRP 0.40

[7] No Party Support 4.19, Generations 1.53, HRP 0.49

[8] HRP 0.52

[9] No Party Support 1.80, NHK 1.67

[10] Euthanasia 0.77

[11] Genyu 1.33

[CRA-12] Swings compared to CDP and Komeito

[a]

[b]

[c]

[d]

[e]

[f]

[g]

[h]

[i]

[j]

[k]

[l]

Hokkaidō's electoral districts for the Diet of Japan
FPTP "small" districts (1996–present) 1 2 3 4 5 6 7 8 9 10 11 12 (13) PR Hokkaidō PR block House of Councillors At-large (13→12 Representatives (PR block: 9→8), 4→6 Councillors)
SNTV "medium-sized" districts (1947–1993) 1 2 3 4 5 (22→23 Representatives, 8→4 Councillors)
Limited voting "large" districts (1946) 1 2 (23 Representatives)
SNTV "medium-sized" districts (1928–1942) 1 2 3 4 5 (20 Representatives)
FPTP/SNTV "small" districts (1920–1924) 1 2 3 4 5 6 7 8 9 10 11 12 (16 Representatives)
SNTV "large" districts era (1902–1917), in Hokkaidō FPTP single-member districts Sapporo city (ku) Hakodate city (ku) Otaru city (ku) subprefectures 1 subprefectures 2 subprefectures 3 (3→6 Representatives)

First-past-the-post (FPTP) districts and proportional representation (PR) "blocks" for the Japanese House of Representatives of the National Diet (1996–present)
Speaker of the House of Representatives of Japan: Eisuke Mori, Chiba 11th Vice Speaker of the House of Representatives of Japan: Keiichi Ishii, Northern Kanto PR
Hokkaidō	Block 8 seats Hokkaidō 1 2 3 4 5 6 7 8 9 10 11 12
Tōhoku	Block 12 seats Aomori 1 2 3 Iwate 1 2 3 Miyagi 1 2 3 4 5 Akita 1 2 3 Yamagata 1 2 3 Fukushima 1 2 3 4
Kita- (North) Kantō	Block 19 seats Ibaraki 1 2 3 4 5 6 7 Tochigi 1 2 3 4 5 Gunma 1 2 3 4 5 Saitama 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Minami- (South) Kantō	Block 23 seats Chiba 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Kanagawa 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Yamanashi 1 2
Tokyo	Block 19 seats Tokyo 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
Hokuriku-Shin'etsu	Block 10 seats Niigata 1 2 3 4 5 Toyama 1 2 3 Ishikawa 1 2 3 Fukui 1 2 Nagano 1 2 3 4 5
Tōkai	Block 21 seats Gifu 1 2 3 4 5 Shizuoka 1 2 3 4 5 6 7 8 Aichi 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Mie 1 2 3 4
Kinki	Block 28 seats Shiga 1 2 3 Kyoto 1 2 3 4 5 6 Osaka 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 Hyōgo 1 2 3 4 5 6 7 8 9 10 11 12 Nara 1 2 3 Wakayama 1 2
Chūgoku	Block 10 seats Tottori 1 2 Shimane 1 2 Okayama 1 2 3 4 Hiroshima 1 2 3 4 5 6 Yamaguchi 1 2 3
Shikoku	Block 6 seats Tokushima 1 2 Kagawa 1 2 3 Ehime 1 2 3 Kōchi 1 2
Kyūshū	Block 20 seats Fukuoka 1 2 3 4 5 6 7 8 9 10 11 Saga 1 2 Nagasaki 1 2 3 Kumamoto 1 2 3 4 Ōita 1 2 3 Miyazaki 1 2 3 Kagoshima 1 2 3 4 Okinawa 1 2 3 4
Former districts	Abolished in 2002 Hokkaido 13 Yamagata 4 Shizuoka 9 Shimane 3 Oita 4 Abolished in 2013 Fukui 3 Yamanashi 3 Tokushima 3 Kochi 3 Saga 3 Abolished in 2017 Aomori 4 Iwate 4 Mie 5 Nara 4 Kumamoto 5 Kagoshima 5 Abolished in 2022 Miyagi 6 Fukushima 5 Niigata 6 Shiga 4 Wakayama 3 Okayama 5 Hiroshima 7 Yamaguchi 4 Ehime 4 Nagasaki 4