Tohoku proportional representation block

Tōhoku Proportional Representation Block
Tōhoku Proportional Representation Block
Parliamentary constituency; for the Japanese House of Representatives
	Map of House of Representatives proportional blocks, with the Tōhoku block highlighted
Prefectures	Aomori, Iwate, Miyagi, Akita, Yamagata, and Fukushima
Electorate	7,027,029 (2026)
Current constituency
Created	1994
Number of members	12

The Tōhoku proportional representation block (比例[代表]東北ブロック, Hirei [daihyō] Tōhoku burokku) is one of eleven proportional representation (PR) blocks for the House of Representatives in the Diet of Japan. It consists of the Tōhoku region, namely the prefectures of Aomori, Iwate, Miyagi, Akita, Yamagata and Fukushima. Upon the introduction of proportional voting at the 1996 general election, the block elected 16 Representatives to the House. The block's representation was reduced to 14 Representatives at the 2000 general election, and to 13 in the 2017 election.^[1]

PrefecturesAomori, Iwate, Miyagi, Akita, Yamagata, and Fukushima

Electorate7,027,029 (2026)

Created1994

Number of members12

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Party		1996	2000	2003	2005	2009	2012	2014	2017	2021	2024	2026
	LDP	35.27	31.96	37.63	36.55	27.87	28.55	32.94	35.49	39.51	31.45	41.16
	NFP	33.15
	DPJ^[a]	11.10	21.19	37.43	33.60	45.48	18.57	22.48
	JCP	9.58	8.09	6.57	6.25	5.89	5.92	9.89	7.39	7.11	5.91	4.05
	SDP	8.27	10.70	6.51	6.97	5.92	3.70	3.43	2.51	2.46	2.10	1.43
	LP		16.27
	Komeito		9.81	11.85	11.93	9.65	9.18	11.22	11.03	11.08	9.72
	PNP				4.71
	Your					4.51	7.06
	Ishin^[b]						16.71	13.00	3.04	6.28	4.38	4.21
	TPJ						9.02
	PLP							4.72
	KnT								21.72
	CDP								18.11	24.06	26.26
	DPFP									4.75	10.50	9.94
	Reiwa									3.48	7.19	3.10
	Sanseitō										2.50	7.11
	CRA											21.16
	Mirai											5.97
	CPJ											1.86
Others		3.84^[c]	1.99^[d]			0.68^[e]	1.30^[f]	2.32^[g]	1.61^[h]	1.28^[i]

Turnout			66.39	63.96	68.91	71.21	58.92	52.55	57.04	57.84	54.81	56.75

Elected Representatives
Tenure	1996-2000		2000-03		2003-05	2005-09	2009-12		2012-14	2014-17		2017-21	2021-24		2024-pres.
Rep. Party	Zenmei Matsumoto JCP				Chizuko Takahashi JCP							Akinori Eto LDP	Jun Tsushima LDP		Akinori Eto LDP
Rep. Party	Kenjirō Hatakeyama SDP		Tetsuo Kanno SDP		Kiyohiro Yamamoto SDP	Tetsuo Kanno SDP	Hideo Yoshiizumi SDP		Kōji Hata TPJ -> PLP	Emi Kaneko DPJ -> DP		Manabu Terata KnT -> Ind. -> CDP	Akiko Okamoto CDP		Yuki Baba CDP
Rep. Party	Ichirō Hino (died 2003) DPJ			Masayo Tanabu DPJ	Kiyohito Hashimoto DPJ	Masayo Tanabu DPJ			Kazuko Kōri DPJ -> DP			Akiko Okamoto CDP	Kenya Akiba LDP		Chisato Morishita LDP
Rep. Party	Kenji Kodama DPJ		Takao Satō DPJ		Yōsuke Kondō DPJ		Noriko Nakanowatami DPJ		Yōsuke Kondō DPJ -> DP			Yoshitami Kameoka LDP	Ichirō Kanke LDP		Manabu Terata CDP
Rep. Party	Yasusuke Konta NFP -> DPJ		Yasasuke Konta DPJ		Izumi Yoshida DPJ		Kazuo Takamatsu DPJ		Izumi Yoshida DPJ	Manabu Terata DPJ -> DP		Takashi Fujiwara LDP	Manabu Terata CDP		Daijiro Kikuchi DPP
Rep. Party	Kijūrō Sugahara NFP -> Lib.		Kijūrō Sugahara (resigned 2001) Lib.	Kentarō Ishihara Lib.	Michihiko Kano DPJ	Kazuko Kōri DPJ	Kazuyuki Yamaguchi DPJ		Shinji Oguma JRP -> JIP	Sekio Masuta JIP -> DP		Shinji Oguma KnT -> DPP -> CDP	Kenichi Shōji Komeito		Junji Fukuhara LDP
Rep. Party	Tatsuo Sasayama NFP -> Lib.		Kentarō Kudō Lib.		Teruhiko Mashiko DPJ	Hokuto Yokoyama DPJ	Kyōichi Tsushima DPJ		Toshihide Muraoka JRP -> JIP	Toshihide Muraoka JIP -> Vision of Reform -> DP		Yoshihisa Inoue Komeito	Junji Fukuhara LDP		Kenichi Shōji Komeito
Rep. Party	Yoshihisa Inoue NFP -> Komeito		Yoshihisa Inoue Komeito									Makoto Yamazaki CDP	Ichirō Ozawa CDP		Sekio Masuta CDP
Rep. Party	Kōdō Kohata NFP -> DPJ		Yoshinobu Takahashi Lib.		Masashi Nakano LDP		Miki Wajima (resigned in 2012) DPJ	Ippu Watanabe DPJ	Hiroki Hayashi YP -> Unity Party -> JIP	Yūichi Mayama Komeito		Hinako Takahashi LDP	Katsutoshi Kaneda LDP		Nobuhide Minorikawa LDP
Rep. Party	Kōki Hagino NFP -> LDP		Kōki Hagino LDP			Atsushi Watanabe LDP	Chōuemon Kikuchi DPJ		Sachiko Kanno LDP	Ichirō Kanke LDP		Chizuko Takahashi JCP			Wakako Sawara Reiwa
Rep. Party	Hidefumi Minorikawa (died 2003) LDP			Kyōichi Tsushima LDP		Tatsuo Satō LDP	Katsutoshi Kaneda LDP		Miyo Ōkubo LDP	Shigeaki Katsunama LDP		Takashi Midorikawa KnT -> DPP -> CDP	Kentarō Uesugi LDP		Yuki Saito CDP
Rep. Party	Ichio Kumagai LDP				Tokuichirō Tamazawa LDP		Kenya Akiba LDP		Hinako Takahashi LDP			Kentarō Uesugi LDP	Atsushi Hayasaka Ishin		Taku Nemoto LDP
Rep. Party	Kōji Futada LDP		Hiroyuki Arai LDP		Kōji Futada LDP		Masayoshi Yoshino LDP		Hidenori Hashimoto LDP			Yukihiko Akutsu CDP	Yuki Baba CDP	Seat abolished
Rep. Party	Toshiaki Endō LDP		Kōji Sakamoto LDP		Masayoshi Yoshino LDP	Kōji Sakamoto LDP	Toshiaki Endō LDP		Takashi Fujiwara LDP		Seat abolished
Rep. Party	Tokuichirō Tamazawa LDP	Seat abolished
Rep. Party	Yoshiyuki Hozumi LDP	Seat abolished

Party		Votes	Swing	%	Seats	+/–
	Liberal Democratic Party (LDP)	1,612,576	41.16	9.71	6	1
	Centrist Reform Alliance (CRA)^[j]	828,883	21.16	14.82	3	2
	Democratic Party For the People (DPFP)	389,503	9.94	0.56	1	0
	Sanseitō	278,410	7.11	4.61	1	1
	Team Mirai	234,050	5.97	New	1	New
	Japan Innovation Party (Ishin)	165,104	4.21	0.17	0	0
	Japanese Communist Party (JCP)	158,466	4.05	1.86	0	0
	Reiwa Shinsengumi (Reiwa)	121,631	3.10	4.09	0	1
	Conservative Party of Japan (CPJ)	72,889	1.86	New	0	New
	Social Democratic Party (SDP)	55,999	1.43	0.67	0	0
Total		3,917,511	100.00		12

Invalid votes		70,440	1.77
Turnout		3,987,951	56.75	1.94
Registered voters		7,027,029

Party		Votes	Swing	%	Seats	+/–
	Liberal Democratic Party (LDP)	1,188,975	31.45	8.06	5	1
	Constitutional Democratic Party of Japan (CDP)	993,007	26.26	2.20	4	0
	Democratic Party For the People (DPFP)	396,991	10.50	5.75	1	1
	Komeito	367,341	9.72	1.36	1	0
	Reiwa Shinsengumi (Reiwa)	271,855	7.19	3.71	1	1
	Japanese Communist Party (JCP)	223,409	5.91	1.20	0	1
	Japan Innovation Party (Ishin)	165,697	4.38	1.90	0	1
	Sanseitō	94,354	2.50	New	0	New
	Social Democratic Party (SDP)	79,484	2.10	0.36	0	0
Total		3,781,113	100.00		12	1

Invalid votes		127,427	3.37
Turnout		3,908,540	54.81	3.03
Registered voters		7,131,539

Party		Votes	Swing	%	Seats	+/–
	Liberal Democratic Party (LDP)	1,628,233	39.51	4.02	6	1
	Constitutional Democratic Party of Japan (CDP)	991,505	24.06	5.95	4	1
	Komeito	456,387	11.08	0.05	1	0
	Japanese Communist Party (JCP)	292,830	7.11	0.28	1	0
	Japan Innovation Party (Ishin)	258,690	6.28	3.24	1	1
	Democratic Party For the People (DPFP)	195,754	4.75	New	0	New
	Reiwa Shinsengumi (Reiwa)	143,265	3.48	New	0	New
	Social Democratic Party (SDP)	101,442	2.46	0.05	0	0
	NHK Party	52,664	1.28	New	0	New
Total		4,120,770	100.00		13

Invalid votes		138,904	3.26
Turnout		4,259,674	57.84	0.80
Registered voters		7,364,980

Tohoku proportional representation block

Results timeline

Vote share

Seat distribution

List of representatives

Election results

2026

2024

2021

2017

2014

2012

2009

2005

2003

2000

1996

References

Notes

Related Articles

Tōhoku Proportional Representation Block
Parliamentary constituency for the Japanese House of Representatives
Map of House of Representatives proportional blocks, with the Tōhoku block highlighted
Prefectures	Aomori, Iwate, Miyagi, Akita, Yamagata, and Fukushima
Electorate	7,027,029 (2026)
Current constituency
Created	1994
Number of members	12

Party		Votes	Swing	%	Seats	+/–
	Liberal Democratic Party (LDP)	1,453,871	35.49	1.65	5	0
	Kibō no Tō	912,819	21.72	New	3	New
	Constitutional Democratic Party of Japan (CDP)	761,117	18.11	New	3	New
	Komeito	463,740	11.03	0.19	1	1
	Japanese Communist Party (JCP)	310,559	7.39	2.50	1	0
	Japan Innovation Party (Ishin)	127,674	3.04	New	0	New
	Social Democratic Party (SDP)	105,589	2.51	0.92	0	0
	Party for Japanese Kokoro	44,960	1.07	0.78	0	0
	Happiness Realization Party (HRP)	22,626	0.54	0.07	0	0
Total		4,202,955	100.00		13	1

Invalid votes		129,515	2.99
Turnout		4,332,470	57.04	4.49
Registered voters		7,595,912

Party		Votes	Swing	%	Seats	+/–
	Liberal Democratic Party (LDP)	1,265,372	32.94	4.39	5	0
	Democratic Party of Japan (DPJ)	863,539	22.48	3.91	4	1
	Japan Innovation Party (JIP)	499,437	13.00	3.71	2	0
	Komeito	431,169	11.22	2.04	2	1
	Japanese Communist Party (JCP)	379,811	9.89	3.97	1	0
	People's Life Party (PLP)	181,487	4.72	New	0	New
	Social Democratic Party (SDP)	131,857	3.43	0.27	0	0
	Party for Future Generations	71,026	1.85	New	0	New
	Happiness Realization Party (HRP)	18,201	0.47	0.13	0	0
Total		3,841,899	100.00		14

Invalid votes		130,359	3.28
Turnout		3,972,258	52.55	6.37
Registered voters		7,558,365

Party		Votes	Swing	%	Seats	+/–
	Liberal Democratic Party (LDP)	1,238,716	28.55	0.68	5	1
	Democratic Party of Japan (DPJ)	805,709	18.57	26.91	3	4
	Japan Restoration Party (JRP)	725,006	16.71	New	2	New
	Komeito	398,131	9.18	0.47	1	0
	Tomorrow Party of Japan (TPJ)	391,216	9.02	New	1	New
	Your Party	306,102	7.06	2.55	1	1
	Japanese Communist Party (JCP)	256,838	5.92	0.03	1	0
	Social Democratic Party (SDP)	160,367	3.70	2.22	0	1
	New Renaissance Party	41,587	0.96	New	0	New
	Happiness Realization Party (HRP)	14,825	0.34	0.34	0	0
Total		4,338,497	100.00		14

Invalid votes		148,075	3.30
Turnout		4,486,572	58.92	12.29
Registered voters		7,614,547

Party		Votes	Swing	%	Seats	+/–
	Democratic Party of Japan (DPJ)	2,433,836	45.48	11.88	7	2
	Liberal Democratic Party (LDP)	1,491,761	27.87	8.68	4	2
	Komeito	516,688	9.65	2.28	1	0
	Social Democratic Party (SDP)	316,635	5.92	1.05	1	0
	Japanese Communist Party (JCP)	315,201	5.89	0.36	1	0
	Your Party	241,445	4.51	New	0	New
	Happiness Realization Party (HRP)	36,295	0.68	New	0	New
Total		5,351,861	100.00		14

Invalid votes		162,523	2.95
Turnout		5,514,384	71.21	2.30
Registered voters		7,743,422

Party		Votes	Swing	%	Seats	+/–
	Liberal Democratic Party (LDP)	1,901,595	36.55	1.08	6	0
	Democratic Party of Japan (DPJ)	1,748,165	33.60	3.83	5	0
	Komeito	620,638	11.93	0.08	1	0
	Social Democratic Party (SDP)	362,523	6.97	0.46	1	0
	Japanese Communist Party (JCP)	325,176	6.25	0.32	1	0
	People's New Party (PNP)	244,933	4.71	New	0	New
Total		5,203,030	100.00		14

Invalid votes		199,489	3.69
Turnout		5,402,519	68.91	4.95
Registered voters		7,839,466

Party		Votes	Swing	%	Seats	+/–
	Liberal Democratic Party (LDP)	1,794,284	37.63	5.67	6	1
	Democratic Party of Japan (DPJ)	1,784,768	37.43	16.24	5	2
	Komeito	565,179	11.85	2.04	1	0
	Japanese Communist Party (JCP)	313,290	6.57	1.52	1	0
	Social Democratic Party (SDP)	310,187	6.51	4.19	1	0
Total		4,767,708	100.00		14

Invalid votes		244,942	4.89
Turnout		5,012,650	63.96	2.43
Registered voters		7,836,650

Party		Votes	Swing	%	Seats	+/–
	Liberal Democratic Party (LDP)	1,545,028	31.96	3.31	5	1
	Democratic Party of Japan (DPJ)	1,024,253	21.19	10.09	3	1
	Liberal Party (LP)	786,751	16.27	New	3	New
	Social Democratic Party (SDP)	517,267	10.70	2.43	1	0
	Komeito	474,238	9.81	New	1	New
	Japanese Communist Party (JCP)	391,055	8.09	1.49	1	0
	Assembly of Independents	82,978	1.72	New	0	New
	Liberal League (LL)	13,196	0.27	0.57	0	0
Total		4,834,766	100.00		14	2

Invalid votes		327,077	6.34
Turnout		5,161,843	66.39
Registered voters		7,774,608

Party		Votes	%	Seats
	Liberal Democratic Party (LDP)	1,630,777	35.27	6
	New Frontier Party (NFP)	1,532,987	33.15	6
	Democratic Party (DP)	513,410	11.10	2
	Japanese Communist Party (JCP)	442,790	9.58	1
	Social Democratic Party (SDP)	382,271	8.27	1
	New Socialist Party (NSP)	84,167	1.82	0
	Liberal League (LL)	37,661	0.84	0
Total		4,624,063	100.00	16