Chiba 1st district

Chiba 1st District
Chiba 1st District
Parliamentary constituency; for the Japanese House of Representatives
	Numbered map of Chiba Prefecture single-member districts
Prefecture	Chiba
Proportional District	Southern Kanto
Electorate	433,793
Current constituency
Created	1994
Seats	One
Party	LDP
Representative	Hiroaki Kadoyama
Created from	Chiba 1st "medium-sized" district
Municipalities	Chiba; (Chūōku, Inage-ku, and Mihama-ku)

PrefectureChiba

Proportional DistrictSouthern Kanto

Electorate433,793^[1]

Created1994

Chiba 1st district (千葉県第1区, Chiba-ken dai-ikku or simply 千葉1区, Chiba-ikku) is a single-member constituency of the House of Representatives in the national Diet of Japan located in the city of Chiba, Chiba Prefecture.

[1]

Election	Representative		Dates
1996	Hideo Usui	LDP	1996 – 2003
2000	Hideo Usui	LDP	1996 – 2003
2003	Kaname Tajima	DPJ	2003 – 2005
2005	Hideo Usui	LDP	2005 – 2009
2009	Kaname Tajima	DPJ	2009 – 2016
2012
2014
		DP	2016-2017
		Kibō	2017
2017	Hiroaki Kadoyama	LDP	2017 – 2021
2021	Kaname Tajima	CDP	2021–2026
2024	Kaname Tajima	CDP	2021–2026
2026	Hiroaki Kadoyama	LDP

Party		Candidate	Votes	%	±%
	LDP	Hiroaki Kadoyama	109,771	46.8	17.1
	Centrist Reform	Kaname Tajima (elected in S. Kanto PR block)	91,149	38.9	8.4
	Sanseitō	Atsuhiro Ueda	33,443	14.3	7.4
Registered electors			440,280
Turnout				54.59	1.35
	LDP gain from Centrist Reform

Party		Candidate	Votes	%	±%
	CDP	Kaname Tajima (Incumbent)	107,439	47.33	8.94
	Liberal Democratic (endorsed by Komeito	Hiroaki Kadoyama	67,432	29.70	14.03
	Innovation	Kazutaka Yoda	23,770	10.47	new
	Sanseitō	Atsuhiro Ueda	15,703	6.92	New
	Communist	Masashi Watanabe	12,662	5.58	New
Majority			40,007	17.63	5.09
Registered electors			437,422
Turnout			227,006	53.24	1.27
	LDP hold

Party		Candidate	Votes	%	±%
	CDP	Kaname Tajima (Incumbent-PR)	128,556	56.27	New
	LDP	Hiroaki Kadoyama<ja> (Incumbent) (elected by PR)	99,895	43.73	3.04
Registered electors			430,513
Turnout			228,451	54.51	4.82

Party		Candidate	Votes	%	±%
	LDP	Hiroaki Kadoyama (Incumbent-PR)	82,838	40.69	3.38
	Kibō	Kaname Tajima (Incumbent) (elected by PR)	81,481	40.03	New
	JCP	Takashi Ohno	24,231	11.90	3.08
	Ishin	Yutaka Hasegawa<ja>	15,014	7.38	New
Registered electors			419,847
Turnout			203,564	49.69	2.72

Chiba 1st district

Election results

References

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Chiba 1st District
Parliamentary constituency for the Japanese House of Representatives
Numbered map of Chiba Prefecture single-member districts
Prefecture	Chiba
Proportional District	Southern Kanto
Electorate	433,793^[1]
Current constituency
Created	1994
Seats	One
Party	LDP
Representative	Hiroaki Kadoyama
Created from	Chiba 1st "medium-sized" district
Municipalities	Chiba (Chūōku, Inage-ku, and Mihama-ku)

Party		Candidate	Votes	%	±%
	DPJ	Kaname Tajima (Incumbent)	84,755	41.10	7.90
	LDP	Hiroaki Kadoyama (Incumbent-PR) (reelected by PR)	76,937	37.31	7.13
	PFG	Takashi Tanuma<ja>	26,322	12.77	New
	JCP	Tadayoshi Yoshida	18,182	8.82	3.17
Registered electors			404,904
Turnout			206,196	52.41	6.80

Party		Candidate	Votes	%	±%
	DPJ	Kaname Tajima (Incumbent)	76,914	33.20	23.49
	LDP	Hiroaki Kadoyama (elected by PR)	69,927	30.18	7.49
	JRP	Takashi Tanuma (elected by PR)	44,668	19.28	New
	YP	Motoki Nishino	27,089	11.69	New
	JCP	Ken Terao	13,102	5.65	0.67
Registered electors			402,425
Turnout			231,700	59.21	5.12

Party		Candidate	Votes	%	±%
	DPJ	Kaname Tajima (Incumbent-PR)	142,694	56.69	13.33
	LDP	Shoichi Usui	94,820	37.67	13.44
	JCP	Takeo Agui	12,540	4.98	0.55
	HRP	Kazuyoshi Shina	1,644	0.65	New
Registered electors			397,382
Turnout			251,698	64.33	0.56

Party		Candidate	Votes	%	±%
	LDP	Hideo Usui	124,292	51.11	7.25
	DPJ	Kaname Tajima (Incumbent) (elected by PR)	105,459	43.36	5.85
	JCP	Tomoki Sasaki	13,443	5.53	1.39
Registered electors			380,707
Turnout			243,194	64.89	8.46

Party		Candidate	Votes	%	±%
	DPJ	Kaname Tajima	100,838	49.21	16.30
	LDP	Hideo Usui (Incumbent)	89,873	43.86	0.94
	JCP	Takeo Agui	14,183	6.92	9.19
Registered electors			373,444
Turnout			204,894	56.43	1.88

Party		Candidate	Votes	%	±%
	LDP	Hideo Usui (Incumbent)	90,358	44.80	2.09
	DPJ	Tetsuo Kitamura<ja> (Incumbent-PR)	66,378	32.91	New
	JCP	Reiko Koshiba	32,492	16.11	2.03
	LL	Miyuki Kimura	12,470	6.18	5.05
Registered electors			358,426
Turnout				58.31

Party		Candidate	Votes	%	±%
	LDP	Hideo Usui	77,679	42.71	New
	NFP	Minoru Murai	40,094	22.04	New
	DPJ	Naoko Kida	31,226	17.17	New
	JCP	Hiroshi Nomura	25,612	14.08	New
	NSP	Katsuo Hanzawa	5,206	2.86	New
	LL	Hideyasu Murata	2,059	1.13	New
Turnout

v t e 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