Tokyo 23rd district

**Tokyo 23rd District**
Tokyo 23rd District
東京都第23区
Parliamentary constituency; for the Japanese House of Representatives
Prefecture	Tokyo
Proportional District	Tokyo
Electorate	262,390 (as of 1 September 2022)
Current constituency
Created	1994
Seats	One
Party	CDP
Representative	Shunsuke Ito

Tokyo 23rd Ward (東京都第23区, Tokyo dai-ni-jusan-ku) is an electoral district in the Japanese House of Representatives. The district was established in 1994 at the introduction of the single member constituency system.

Areas covered

Current district

As of 12 January 2023, the areas that are covered by this district are as follows:^[2]

Machida

As part of the 2022 reapportionments, the remaining sections of Tama were given to the new 30th district. As a result of this the 23rd district became the only district in Western Tokyo to be composed of a single municipality.

Areas 2017–2022

Between the first redistricting in 2017 and the second redistricting in 2022, the areas covered by this district were as follows:^[3]^[4]

Machida
Parts of Tama
- Sekido 5 (excluding 1-8 & 13-31), Sekido 6, Kaitori, Gouda, Wada, Mogusa, Ochikawa, Higashiterakata, Sakuragaoka 1-4, Hijirigaoka 1 (1-24, 35, Excluding 44), Umabikizawa 1-2, Sannoshita, Nakazawa, Karakida, Suwa 1-6, Nagayama 1-7, Kaitori 1-5, Toyogaoka 1-6, Ochiai 1-6 Chome, Tsurumaki 1-6, Minamino 1-3, Higashi Terakata 3, Wada 3, Atago 1-4

As part of the 2017 redistricting, part of Tama was transferred to the 21st district.

Areas from before 2017

From the districts creation in 1994 and its first redistricting in 2017, the areas covered by this district were as follows:

Machida
Tama

Elected representatives


Representative		Years served	Notes
Kosuke Ito	LDP	1996 – 2009	Lost re-election in the 2009 general election. He initially intended to run again as an independent in 2012, after the Liberal Democratic nomination was given to Masanobu Ogura. However, he withdrew his candidacy to support the candidacy of his son, Shunsuke Ito, who was running for the Japan Restoration Party.^[5]
Mari Kushibuchi	DPJ	2009 – 2012	Lost re-election in the 2012 general election. She was later chosen to replace Tarō Yamamoto in the Tokyo PR district after he resigned, since she had been the next highest Reiwa Shinsengumi member in the 2021 general election.^[6]^[7] She currently serves in the seat as a co-representative with Akiko Oishi at the recommendation of Yamamoto.^[8]
Masanobu Ogura	LDP	2012 – 2024
Shunsuke Ito	CDP	2024 –

Election results

‡ - Also ran in the Tokyo PR district

‡‡ - Also ran in the Tokyo PR district and won.

2024
Party		Candidate
	CDP	Shunsuke Ito
	LDP	Osamu Yoshiwara
	Your	AI Mayor
Registered electors
Turnout

2021^[9]
Party		Candidate	Votes	%	±%
	LDP	Masanobu Ogura^‡ (incumbent) (endorsed by Komeito)	133,206	51.3	6.3
	CDP	Shunsuke Ito^‡‡ (incumbent - Tokyo PR) (endorsed by Reiwa Shinsengumi and the SDP Tokyo branch)	126,732	48.8	New
Registered electors			458,998
Turnout			268,055	58.4	2.6
	LDP hold		Swing	5.1

2017^[10]
Party		Candidate	Votes	%	±%
	LDP	Masanobu Ogura^‡ (incumbent) (endorsed by Komeito)	110,522	45.0	3.8
	Kibō no Tō	Shunsuke Ito^‡	76,450	31.1	New
	JCP	Ryosuke Matsumura	58,929	24.0	10.2
Registered electors			455,437
Turnout			254,088	55.8	0.2
	LDP hold		Swing	7.4

2014^[11]
Party		Candidate	Votes	%	±%
	LDP	Masanobu Ogura^‡ (incumbent) (endorsed by Komeito)	104,709	41.2	11.0
	Democratic	Mari Kushibuchi^‡ (endorsed by Greens Japan)	63,706	25.0	2.9
	Restoration	Shunsuke Ito^‡	50,836	20.0	0.5
	JCP	Ryosuke Matsumura	35,166	13.8	6.5
Registered electors			466,399
Turnout			261,370	56.0	8.3
	LDP hold		Swing	8.0

2012^[12]
Party		Candidate	Votes	%	±%
	LDP	Masanobu Ogura^‡ (endorsed by Komeito)	87,192	30.2	4.9
	Democratic	Mari Kushibuchi^‡ (endorsed by the PNP)	63,969	22.1	32.3
	Restoration	Shunsuke Ito^‡	59,166	20.5	New
	Your	Tetsuya Shirakawa	39,676	13.7	New
	JCP	Ryosuke Matsumara	21,006	7.3	1.7
	Tomorrow	Takashi Ishii^‡	18,125	6.3	New
Registered electors			463, 214
Turnout			297,800	64.3	4.5
	LDP gain from Democratic		Swing	12.3

2009^[13]
Party		Candidate	Votes	%	±%
	Democratic	Mari Kushibuchi^‡	168,346	54.4	18.3
	LDP	Kosuke Ito^‡ (incumbent) (endorsed by Komeito)	108,528	35.1	19.6
	JCP	Yoshiyasu Furuhashi	27,699	9.0	0.2
	Happiness Realization	Youhei Matsuo	4,885	1.6	New
Registered electors			461,006
Turnout			317,080	68.8	0.8
	Democratic gain from LDP		Swing	12.3

2005^[14]
Party		Candidate	Votes	%	±%
	LDP	Kosuke Ito^‡ (incumbent)	162,351	54.7	6.2
	Democratic	Eiko Ishige^‡ (incumbent - Tokyo PR)	107,136	36.1	6.2
	JCP	Tomohide Murotani	27,232	9.2	0.0
Registered electors			445,766
Turnout			302,898	68.0	6.9
	LDP hold		Swing	7.6

2003^[15]
Party		Candidate	Votes	%	±%
	LDP	Kosuke Ito^‡ (incumbent)	126,221	48.5	8.9
	Democratic	Eiko Ishige^‡‡ (incumbent - Tokyo PR)	110,266	42.3	7.9
	JCP	Junichiro Imamura	23,943	9.2	5.1
Registered electors			437,355
Turnout			267,268	61.1	1.8
	LDP hold		Swing	5.1

2000^[16]
Party		Candidate	Votes	%	±%
	LDP	Kosuke Ito^‡ (incumbent)	100,271	39.6	1.2
	Democratic	Eiko Ishige^‡‡ (incumbent - Tokyo PR)	87,232	34.4	14.0
	JCP	Yoko Sato	36,113	14.3	4.1
	Liberal	Akihisa Nagao^‡	20,986	8.3	New
	Independent	Mitsuyoshi Tsukahara	6,172	2.4	New
	Liberal League	Yutaka Yamaguchi	2,570	1.0	0.7
Registered electors			413,515
Turnout			266,518	62.9	5.0
	LDP hold		Swing

1996^[17]
Party		Candidate	Votes	%	±%
	LDP	Kosuke Ito^‡ (incumbent - former Tokyo 11th district)	85,035	38.4	*New*
	New Frontier	Maki Kitasato	46,821	21.1	New
	Democratic	Junjiro Sase^‡	45,182	20.4	New
	JCP	Hajime Kurosawa	40,870	18.4	New
	Liberal League	Yoshio Minemura^‡	3,686	1.7	New
Registered electors			393,558
Turnout			227,791	57.9	N/A
	LDP win (new seat)

References

^ "令和4年9月1日現在選挙人名簿及び在外選挙人名簿登録者数" [Ministry of Internal Affairs and Communications - Number of registered voters as of 1 September 2022]. Ministry of Internal Affairs and Communications (in Japanese). Retrieved 2023-01-13.
^ "東京都" [Tokyo] (PDF). Ministry of Internal Affairs and Communications (in Japanese). 2022. Retrieved 2023-01-12.
^ "東京都" [Tokyo] (PDF). Ministry of Internal Affairs and Communications (in Japanese). 2017. Retrieved 2023-01-12.
^ "衆議院議員選挙区画定審議会設置法及び公職選挙法の一部を改正する法律の一部を改正する法律". www.shugiin.go.jp. Japanese House of Representatives. 2017-06-16. Retrieved 2023-01-12.
^ "衆院選　伊藤公介・元国土庁長官、出馬せず" [House of Representatives Election - Kosuke Ito, Former Commissioner of the National Land Agency, is not running]. Mainichi Shimbun (in Japanese). Archived from the original on 2012-11-21. Retrieved 2023-01-12.
^ "れいわ・櫛渕氏が繰り上げ当選衆院：時事ドットコム". 時事ドットコム (in Japanese). Retrieved 2023-01-12.
^ INC, SANKEI DIGITAL (2022-04-27). "櫛渕万里氏の繰り上げ当選決定れいわ衆院比例東京". 産経ニュース (in Japanese). Retrieved 2023-01-12.
^ "れいわ、トロイカ体制へ山本氏が櫛渕、大石両氏を共同代表に指名：朝日新聞デジタル". 朝日新聞デジタル (in Japanese). 2022-12-19. Retrieved 2023-01-12.
^ "東京23区 - 第49回衆議院議員選挙" [Tokyo 23rd District - 49th House of Representatives election] (in Japanese). Retrieved 2023-01-08.
^ "東京23区 - 第48回衆議院議員選挙" [Tokyo 23rd District - 48th House of Representatives election] (in Japanese). Retrieved 2023-01-08.
^ "東京23区 - 第47回衆議院議員選挙" [Tokyo 23rd District - 47th House of Representatives election] (in Japanese). Retrieved 2023-01-12.
^ "東京23区 - 第46回衆議院議員選挙" [Tokyo 23rd District - 46th House of Representatives election] (in Japanese). Retrieved 2023-01-12.
^ "東京23区 - 第45回衆議院議員選挙" [Tokyo 23rd District - 45th House of Representatives election] (in Japanese). Retrieved 2023-01-12.
^ "東京23区 - 第44回衆議院議員選挙" [Tokyo 23rd District - 44th House of Representatives election] (in Japanese). Retrieved 2023-01-12.
^ "東京23区 - 第43回衆議院議員選挙" [Tokyo 23rd District - 43rd House of Representatives election] (in Japanese). Retrieved 2023-01-12.
^ "東京23区 - 第42回衆議院議員選挙" [Tokyo 23rd District - 42nd House of Representatives election] (in Japanese). Retrieved 2023-01-12.
^ "東京23区 - 第41回衆議院議員選挙" [Tokyo 23rd District - 41st House of Representatives election] (in Japanese). Retrieved 2023-01-12.

[1] "令和4年9月1日現在選挙人名簿及び在外選挙人名簿登録者数" [Ministry of Internal Affairs and Communications - Number of registered voters as of 1 September 2022]. Ministry of Internal Affairs and Communications (in Japanese). Retrieved 2023-01-13.

[2] "東京都" [Tokyo] (PDF). Ministry of Internal Affairs and Communications (in Japanese). 2022. Retrieved 2023-01-12.

[3] "東京都" [Tokyo] (PDF). Ministry of Internal Affairs and Communications (in Japanese). 2017. Retrieved 2023-01-12.

[4] "衆議院議員選挙区画定審議会設置法及び公職選挙法の一部を改正する法律の一部を改正する法律". www.shugiin.go.jp. Japanese House of Representatives. 2017-06-16. Retrieved 2023-01-12.

[5] "衆院選　伊藤公介・元国土庁長官、出馬せず" [House of Representatives Election - Kosuke Ito, Former Commissioner of the National Land Agency, is not running]. Mainichi Shimbun (in Japanese). Archived from the original on 2012-11-21. Retrieved 2023-01-12.

[6] "れいわ・櫛渕氏が繰り上げ当選衆院：時事ドットコム". 時事ドットコム (in Japanese). Retrieved 2023-01-12.

[7] INC, SANKEI DIGITAL (2022-04-27). "櫛渕万里氏の繰り上げ当選決定れいわ衆院比例東京". 産経ニュース (in Japanese). Retrieved 2023-01-12.

[8] "れいわ、トロイカ体制へ山本氏が櫛渕、大石両氏を共同代表に指名：朝日新聞デジタル". 朝日新聞デジタル (in Japanese). 2022-12-19. Retrieved 2023-01-12.

[9] "東京23区 - 第49回衆議院議員選挙" [Tokyo 23rd District - 49th House of Representatives election] (in Japanese). Retrieved 2023-01-08.

[10] "東京23区 - 第48回衆議院議員選挙" [Tokyo 23rd District - 48th House of Representatives election] (in Japanese). Retrieved 2023-01-08.

[11] "東京23区 - 第47回衆議院議員選挙" [Tokyo 23rd District - 47th House of Representatives election] (in Japanese). Retrieved 2023-01-12.

[12] "東京23区 - 第46回衆議院議員選挙" [Tokyo 23rd District - 46th House of Representatives election] (in Japanese). Retrieved 2023-01-12.

[13] "東京23区 - 第45回衆議院議員選挙" [Tokyo 23rd District - 45th House of Representatives election] (in Japanese). Retrieved 2023-01-12.

[14] "東京23区 - 第44回衆議院議員選挙" [Tokyo 23rd District - 44th House of Representatives election] (in Japanese). Retrieved 2023-01-12.

[15] "東京23区 - 第43回衆議院議員選挙" [Tokyo 23rd District - 43rd House of Representatives election] (in Japanese). Retrieved 2023-01-12.

[16] "東京23区 - 第42回衆議院議員選挙" [Tokyo 23rd District - 42nd House of Representatives election] (in Japanese). Retrieved 2023-01-12.

[17] "東京23区 - 第41回衆議院議員選挙" [Tokyo 23rd District - 41st House of Representatives election] (in Japanese). Retrieved 2023-01-12.

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