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Niigata 1st District
Niigata 1st District
National Diet constituency; for the Japanese House of Representatives
	Numbered map of Niigata Prefecture single-member districts
Prefecture	Niigata
Proportional District	Hokuriku-Shinetsu Block
Electorate	434,016 (2021)
Current constituency
Created	1994
Seats	One
Party	Constitutional Democratic Party
Representative	Chinami Nishimura
Created from	Niigata 1st SNTV "medium-sized" district

Niigata 1st district (新潟県第1区, Nigata dai-ikku or 新潟1区, Nigata ikku) is a constituency of the House of Representatives in the National Diet of Japan (national legislature), represented by Chinami Nishimura of the Constitutional Democratic Party of Japan since 2017. As of 2017, 439,968 eligible voters were registered in the district^[1]

Area

From its creation the district has been located in Niigata City, the capital of Niigata Prefecture. After redistricting in 2022 it comprises two distinct parts.

Niigata City

Sado Island

Sado City

History

Before 1996, the amendment of Public Offices Election Act that introduced FPTP “small” voting system, this area had been part of former Niigata 1st district where three representatives had been elected by single non-transferable vote. The two candidates contesting the former 1st district, Rokuzaemon Yoshida (LDP) and Nobuyuki Sekiyama (DPJ), had continued to run until 2000.

In the 2003 general election, the Democratic Party of Japan fielded Chinami Nishimura, former Member of Niigata Prefecture Assembly, who defeated Yoshida in the 2003, 2005 and 2009 elections.^[2] In 2012, when the Democratic Party lost the reins of government, Tooru Ishizaki, a new LDP candidate, defeated Nishimura. In 2014, Nishimura was defeated again, but elected through the proportional representation block.

In the 2017 general election, Nishimura joined the Constitutional Democratic Party,^[3] and defeated Ishizaki. Ishizaki was elected through the proportional representation block. In 2020, after Ishizaki was indicted for verbally and physically assaulting his secretary, he left the LDP and ran as a Nippon Ishin no Kai candidate in the 2021 elections.^[4]

List of representatives

Representative		Dates
Rokuzaemon Yoshida	LDP	1996 – 2003
Chinami Nishimura	DPJ	2003 – 2012
Tōru Ishizaki	LDP	2012 – 2017
Chinami Nishimura	CDP	2017 –

Election results

2024
Party		Candidate
	CDP	Chinami Nishimura
	LDP	Ichirō Tsukada
	Ishin	Tooru Ishizaki
	JCP	Takeo Nakamura
Turnout

2021^[5]
Party		Candidate	Votes	%	±%
	CDP	Chinami Nishimura	127,365	52,57	0.54
	LDP	Ichirō Tsukada (elected in PR block)	96,591	39.87	7.02
	Ishin	Tooru Ishizaki	18,333	7.57
Turnout				57.25	1,11
	CDP hold

General election 2017: Niigata 1st district^[6]
Party		Candidate	Votes	%	±%
	CDP	Chinami Nishimura^[7]	128,045	53.1	6.1
	LDP	Tooru Ishizaki (elected in PR block)	113,045	46.9	0.1
Turnout			241,090	56.14	9.17
	CDP gain from LDP

General election 2014: Niigata 1st district^[8]
Party		Candidate	Votes	%	±%
	LDP	Tooru Ishizaki	92,656	47.0	2.9
	Democratic	Chinami Nishimura (elected in PR block)	84,573	42.9	7.3
	JCP	Akihiro Machida	20,037	10.2	2.4
Turnout			197,266	46.97	6.23
	LDP hold

General election 2012: Niigata 1st district^[9]
Party		Candidate	Votes	%	±%
	LDP	Tooru Ishizaki	97,010	44.1	9.9
	Democratic	Chinami Nishimura	78,283	35.6	24.5
	Tomorrow	Kou Uchimura	27,749	12.6	N/A
	JCP	Katsutoshi Takeda	17,071	7.8	1.4
Turnout			220,113	53.20	14.28
	LDP gain from Democratic

General election 2009: Niigata 1st district^[10]
Party		Candidate	Votes	%	±%
	Democratic	Chinami Nishimura	169,389	60.1	10.4
	LDP	Rokuzaemon Yoshida	90,626	32.2	10.6
	JCP	Katsutoshi Takeda	17,919	6.4	1.1
	Happiness Realization	Koji Matsumoto	3,690	1.3	N/A
Turnout			281,624	67.48	0.86
	Democratic hold

General election 2005: Niigata 1st district^[11]
Party		Candidate	Votes	%	±%
	Democratic	Chinami Nishimura	136,391	49.7	1.4
	LDP	Rokuzaemon Yoshida (elected in PR block)	117,652	42.8	1.6
	JCP	Yukio Kawamata	18,134	7.8	2.5
Turnout			274,584	66.62	9.6
	Democratic hold

General election 2003: Niigata 1st district^[12]
Party		Candidate	Votes	%	±%
	Democratic	Chinami Nishimura	119,297	51.1	16.0
	LDP	Rokuzaemon Yoshida	96,107	41.2	2.0
	JCP	Yukio Kawamata	18,134	7.8	2.5
Turnout			274,584	57.02	3.37
	Democratic gain from LDP