Chiba 4th district

Chiba 4th District
Chiba 4th District
Parliamentary constituency; for the Japanese House of Representatives
	Numbered map of Chiba Prefecture single-member districts
Prefecture	Chiba
Proportional District	Minami-Kantō
Electorate	463,083 (2021)
Current constituency
Created	1994
Seats	One
Party	Constitutional Democratic Party
Representative	Hideyuki Mazunuma
Created from	Chiba's 1st "medium-sized" district
Municipalities	Parts of Funabashi and Ichikawa cities

Chiba 4th district is a constituency of the House of Representatives in the Diet of Japan, located in Western Chiba. As of 2016, 459,431 eligible voters were registered in the district.^[1] In the 2009 and 2012 general elections, the district had the lowest electoral weight throughout Japan at more than two times as many voters as the district with the highest electoral weight, Kōchi-3rd.^[2]

Former Prime Minister Yoshihiko Noda represented Chiba 4th district from 2000 until 2024 when he transferred to the newly established Chiba 14th district. Noda initially lost as a candidate for the New Frontier Party by 105 votes to Liberal Democrat Shōichi Tanaka in 1996. Amid the LDP landslide in 2012 that returned them into power, then-PM Noda became a rare DPJ politician who actually increased his share of vote in his constituency.

Before resdistricting, the electoral district covered the city of Funabashi. After 2022 it comprises a part of Funabashi and a part of Ichikawa. Areas of Funabashi that had previously belonged to the 4th were moved to the new 14th district.

Before the electoral reform of 1994, Funabashi was part of Chiba 1st district where four Representatives had been elected by single non-transferable vote.

List of representatives

Representative		Dates
Shōichi Tanaka	LDP	1996 – 2000
Yoshihiko Noda	DPJ	2000 – 2016
	DP	2016 – 2017
	Ind	2017 – 2021
	CDP	2021 – 2024
Hideyuki Mazunuma	CDP	2024 –

Election results

2024^[3]
Party		Candidate	Votes	%	±%
	CDP	Hideyuki Mazunuma	90,011	43.33	21.22
	LDP	Tetsuya Kimura	66,629	32.07	3.38
	JCP	Kenta Yakama	26,222	12.62	5.82
	Ishin	Kyōko Amemiya	13,736	6.61	1.11
	Sanseitō	Seiko Kudō	11,131	5.36	New
Turnout				52.58	0.11
Registered electors			406,084
	CDP hold

2021^[4]
Party		Candidate	Votes	%	±%
	CDP	Yoshihiko Noda	154,412	64.55	4.56
	LDP	Tetsuya Kimura	84,813	35.45	7.34
Majority			70.399	29.10	2.38
Turnout				52.69	3.28
	CDP hold		Swing	1.19

2017^[5]
Party		Candidate	Votes	%	±%
	Independent	Yoshihiko Noda	131,024	59.59	8.90
	LDP	Tetsuya Kimura (elected by PR, endorsed by Kōmeitō)	61,804	28.11	1.21
	JCP	Toshirō Fukatsu	14,955	6.80	3.73
	Ishin	Hiroshi Satō	12,104	5.50	N/A
Majority			69,220	31.48
Turnout				49.41	3.75
	Independent hold		Swing	5.06

2014^[6]
Party		Candidate	Votes	%	±%
	Democratic	Yoshihiko Noda	119,193	51.69	5.59
	LDP	Tetsuya Kimura (endorsed by Kōmeitō)	67,600	29.32	4.01
	JCP	Kazuko Saitō (elected by PR)	24,275	10.53	3.00
	Independent	Ken'ichi Nishio (endorsed by the Greens)	19,510	8.46	N/A
Majority			51,593	22.37
Turnout				53.16	6.30
	Democratic hold		Swing	4.80

2012^[7]
Party		Candidate	Votes	%	±%
	Democratic	Yoshihiko Noda (endorsed by PNP)	163,334	57.28	3.64
	LDP	Mikio Fujita (endorsed by NKP)	72,187	25.31	2.95
	Tomorrow	Yukiko Miyake (endorsed by NPD)	28,187	9.88	N/A
	JCP	Kazuko Saitō	21,459	7.53	0.09
Majority			91,147	31.97
Turnout			307,954	59.46	3.67
	Democratic hold		Swing	3.30

In 2009, Yoshihiko Noda's candidacy was formally supported by the People's New Party, Mikio Fujita by New Komeito.^[8]

2009^[8]^[9]
Party		Candidate	Votes	%	±%
	Democratic	Yoshihiko Noda (endorsed by PNP)	162,153	53.64	8.75
	LDP	Mikio Fujita (endorsed by NKP)	85,425	28.26	16.32
	Your	Itoko Noyashiki	28,280	9.35	N/A
	JCP	Kazuko Saitō	23,050	7.62	0.73
	Happiness Realization	Kōichirō Yamanaka	3,403	1.13	N/A
Majority			76,728	25.38
Turnout			307,954	63.13	0.24
	Democratic hold		Swing	12.52

2005^[10]^[11]
Party		Candidate	Votes	%	±%
	Democratic	Yoshihiko Noda	129,834	44.89	10.9
	LDP	Mikio Fujita (elected by PR, endorsed by NKP)	128,890	44.58	11.7
	JCP	Toshinori Niki	24,138	8.35	2.9
	Independent	Kōji Nagano	6,311	2.18	N/A
Majority			956	0.31
Turnout			294,777	63.37	9.08
	Democratic hold		Swing	11.3

2003^[12]
Party		Candidate	Votes	%	±%
	Democratic	Yoshihiko Noda	135,522	55.8	8.5
	LDP	Masaru Hasegawa (endorsed by NKP)	80,051	32.9	1.9
	JCP	Yukiko Tsuga	27,441	11.3	6.9
Turnout			249,446	54.29	9.08
	Democratic hold		Swing	5.2

2000^[13]
	Candidate	Votes	%	±%
Democratic	Yoshihiko Noda	116,156	47.3	15.4
LDP	Ken'ichi Nishio (endorsed by NKP)	76,067	31.0	1.0
JCP	Shōji Ishii	44,586	18.2	2.0
Liberal League	Yutaka Akimoto	8,899	3.5	N/A
Democratic gain from LDP		Swing	8.2

1996^[14]
Party		Candidate	Votes	%
	LDP	Shōichi Tanaka	73,792	32.0
	New Frontier	Yoshihiko Noda	73,687	31.9
	Democratic	Takayuki Kojima	45,924	19.9
	JCP	Shin'ichi Maruyama	37,300	16.2
Turnout			235,653	55.07
	LDP win (new seat)

References

^ Ministry of Internal Affairs and Communications (MIC): [1] (in Japanese)
^ Ministry of Internal Affairs and Communications (MIC): 平成24年9月2日現在選挙人名簿及び在外選挙人名簿登録者数 (in Japanese)
^ "2024年衆議院議員総選挙千葉4区". NHK (in Japanese). Retrieved January 8, 2025.
^ 開票速報小選挙区：千葉 - 2021衆議 (in Japanese). NHK. Retrieved 4 December 2021.
^ 小選挙区開票速報：千葉県（定数13） (in Japanese). Asahi Shimbun. Retrieved 11 December 2017.
^ 小選挙区：千葉県 - 開票速報 - 2014総選挙: 朝日新聞デジタル (in Japanese). Asahi Shimbun. Retrieved 11 December 2017.
^ 第46回総選挙>小選挙区開票速報：埼玉県 (in Japanese). Asahi Shimbun. Retrieved 11 December 2017.
^ ^a ^b 衆議院>第45回衆議院議員選挙>千葉県>千葉4区. ザ･選挙 (in Japanese). JANJAN. Archived from the original on 2010-01-26. Retrieved 2011-02-07.
^ 小選挙区開票結果ー埼玉県４区 (in Japanese). Asahi Shimbun. Retrieved 11 December 2017.
^ 衆議院>第44回衆議院議員選挙>千葉県>千葉4区. ザ･選挙 (in Japanese). JANJAN. Archived from the original on 2009-08-08. Retrieved 2011-02-07.
^ ２００５総選挙>小選挙区開票結果ー千葉県ヨ４区 (in Japanese). Asahi Shimbun. Retrieved 11 December 2017.
^ 衆議院>第43回衆議院議員選挙>千葉県>千葉4区. ザ･選挙 (in Japanese). JANJAN. Archived from the original on 2007-07-29. Retrieved 2011-02-07.
^ 衆議院>第42回衆議院議員選挙>千葉県>千葉4区. ザ･選挙 (in Japanese). JANJAN. Archived from the original on 2009-08-10. Retrieved 2011-02-07.
^ 衆議院>第41回衆議院議員選挙>千葉県>千葉4区. ザ･選挙 (in Japanese). JANJAN. Archived from the original on February 7, 2019. Retrieved 2011-02-07.

House of Representatives (Japan)
Preceded by Tokyo 18th district	Constituency represented by the prime minister 2011 – 2012	Succeeded by Yamaguchi 4th district

[1] Ministry of Internal Affairs and Communications (MIC): [1] (in Japanese)

[2] Ministry of Internal Affairs and Communications (MIC): 平成24年9月2日現在選挙人名簿及び在外選挙人名簿登録者数 (in Japanese)

[3] "2024年衆議院議員総選挙千葉4区". NHK (in Japanese). Retrieved January 8, 2025.

[4] 開票速報小選挙区：千葉 - 2021衆議 (in Japanese). NHK. Retrieved 4 December 2021.

[5] 小選挙区開票速報：千葉県（定数13） (in Japanese). Asahi Shimbun. Retrieved 11 December 2017.

[6] 小選挙区：千葉県 - 開票速報 - 2014総選挙: 朝日新聞デジタル (in Japanese). Asahi Shimbun. Retrieved 11 December 2017.

[7] 第46回総選挙>小選挙区開票速報：埼玉県 (in Japanese). Asahi Shimbun. Retrieved 11 December 2017.

[senkyo2009-8] 衆議院>第45回衆議院議員選挙>千葉県>千葉4区. ザ･選挙 (in Japanese). JANJAN. Archived from the original on 2010-01-26. Retrieved 2011-02-07.

[9] 小選挙区開票結果ー埼玉県４区 (in Japanese). Asahi Shimbun. Retrieved 11 December 2017.

[10] 衆議院>第44回衆議院議員選挙>千葉県>千葉4区. ザ･選挙 (in Japanese). JANJAN. Archived from the original on 2009-08-08. Retrieved 2011-02-07.

[11] ２００５総選挙>小選挙区開票結果ー千葉県ヨ４区 (in Japanese). Asahi Shimbun. Retrieved 11 December 2017.

[12] 衆議院>第43回衆議院議員選挙>千葉県>千葉4区. ザ･選挙 (in Japanese). JANJAN. Archived from the original on 2007-07-29. Retrieved 2011-02-07.

[13] 衆議院>第42回衆議院議員選挙>千葉県>千葉4区. ザ･選挙 (in Japanese). JANJAN. Archived from the original on 2009-08-10. Retrieved 2011-02-07.

[14] 衆議院>第41回衆議院議員選挙>千葉県>千葉4区. ザ･選挙 (in Japanese). JANJAN. Archived from the original on February 7, 2019. Retrieved 2011-02-07.

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Chiba 4th district

List of representatives

Election results

References

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