Chiba 10th district

Chiba 10th district
Chiba 10th district
Parliamentary constituency; for the Japanese House of Representatives
	Numbered map of the Chiba Prefecture single seats
Prefecture	Chiba
Proportional District	Southern Kanto
Electorate	322,653
Current constituency
Created	1994
Seats	One
Party	LDP
Representatives	Masaaki Koike
Municipalities	Cities of Asahi, Chōshi, Katori, Narita, and Sōsa.; Districts of Katori.

PrefectureChiba

Proportional DistrictSouthern Kanto

Electorate322,653^[1]

Created1994

Chiba 10th district (千葉県第10区, Chiba-ken dai-jukku or simply 千葉10区, Chiba-jukku) is a single-member constituency of the House of Representatives in the national Diet of Japan located in Chiba Prefecture.

[1]

Election	Representative
1996^[7]	Motoo Hayashi	LDP
2000^[8]
2003^[9]
2005^[10]
2009^[11]	Hajime Yatagawa [ja]	Democratic
2012^[12]	Motoo Hayashi	LDP
2014^[13]
2017^[14]
2021^[15]
2024^[16]	Masaaki Koike	LDP
2026	Masaaki Koike	LDP

Party		Candidate	Votes	%	±%
	LDP	Masaaki Koike	95,358	61.1	17.3
	Centrist Reform	Hajime Yatagawa [ja]	50,956	32.6	10.1
	JCP	Rie Tamura	9,801	6.3	1.2
Registered electors			316,362
Turnout				50.83	0.05
	LDP hold

Party		Candidate	Votes	%	±%
	LDP	Masaaki Koike	69,563	43.79	3.50
	CDP	Hajime Yatagawa [ja] (Won PR seat)	67,920	42.76	2.92
	Sanseitō	Ryota Shiina	11,494	7.24	New
	JCP	Yukiko Naka	8,018	5.05	N/A
	Independent	Naoto Imadome	1,852	1.16	0.07
Majority			1,643	1.03
Registered electors			321,502
Turnout				50.78	2.50
	LDP hold

Party		Candidate	Votes	%	±%
	LDP	Motoo Hayashi (Incumbent)	83,822	47.29	5.83
	CDP	Hajime Yatagawa [ja] (Won PR seat)	80,971	45.68	New
	New Party Kunimori	Mari Azusa	10,272	5.80	New
	Independent	Naoto Imadome	2,173	1.23	New
Majority			2,851	1.61
Registered electors			341,141
Turnout				53.28	5.29
	LDP hold

Party		Candidate	Votes	%	±%
	LDP	Motoo Hayashi (Incumbent)	88,398	53.12	1.93
	Kibō no Tō	Hajime Yatagawa [ja]	65,256	39.21	New
	JCP	Masami Kasahara	12,758	7.67	0.23
Majority			23,142	13.91
Registered electors			356,116
Turnout				47.99	3.68
	LDP hold

Chiba 10th district

Since 2022

2013 - 2022

1994 - 2013

List of representatives

Election results

2026

2024

2021

2017

2014

2012

2009

2005

2003

2000

1996

References

Related Articles

Chiba 10th district
Parliamentary constituency for the Japanese House of Representatives
Numbered map of the Chiba Prefecture single seats
Prefecture	Chiba
Proportional District	Southern Kanto
Electorate	322,653^[1]
Current constituency
Created	1994
Seats	One
Party	LDP
Representatives	Masaaki Koike
Municipalities	Cities of Asahi, Chōshi, Katori, Narita, and Sōsa. Districts of Katori.

Party		Candidate	Votes	%	±%
	LDP	Motoo Hayashi (Incumbent)	97,783	55.05	2.05
	Democratic	Hajime Yatagawa [ja]	65,809	37.05	4.55
	JCP	Masami Kasahara	14,049	7.90	1.56
Majority			31,974	18.00
Registered electors			356,470
Turnout				51.67	4.26
	LDP hold

Party		Candidate	Votes	%	±%
	LDP	Motoo Hayashi	110,139	57.10	10.15
	Democratic	Hajime Yatagawa [ja] (Incumbent)	62,690	32.50	19.17
	JCP	Masami Kasahara	12,230	6.34	N/A
	Atarimae Party	Keiko Arita	7,831	4.06	New
Majority			47,449	24.60
Registered electors			360,459
Turnout				55.93	8.09
	LDP gain from Democratic

Party		Candidate	Votes	%	±%
	Democratic	Hajime Yatagawa [ja]	118,564	51.67	12.52
	LDP	Motoo Hayashi (Incumbent) (Won PR seat)	107,745	46.95	9.32
	Happiness Realization	Takao Kanai	3,158	1.38	New
Majority			10,819	4.72
Registered electors			365,443
Turnout				64.02	0.70
	Democratic gain from LDP

Party		Candidate	Votes	%	±%
	LDP	Motoo Hayashi (Incumbent)	128,174	56.27	12.70
	Democratic	Hajime Yatagawa [ja]	89,183	39.15	24.53
	JCP	Kōki Sakamoto	10,414	4.58	1.09
Majority			38,991	17.12
Registered electors			367,402
Turnout				63.32	2.49
	LDP hold

Party		Candidate	Votes	%	±%
	LDP	Motoo Hayashi (Incumbent)	94,946	43.57	20.32
	Independent	Hajime Yatagawa [ja]	81,950	37.61	New
	Democratic	Ken Nakazawa	31,864	14.62	4.63
	JCP	Kōki Sakamoto	7,595	3.49	9.33
	Independent	Hiroshi Kase	1,539	0.71	New
Majority			12,996	5.96
Registered electors			367,073
Turnout				60.83	3.84
	LDP hold

Party		Candidate	Votes	%	±%
	LDP	Motoo Hayashi (Incumbent)	126,837	63.89	0.02
	Democratic	Hiroshi Kuroyanagi	38,207	19.25	New
	JCP	Noriko Takada	25,446	12.82	3.17
	Independent	Akio Hayashi	8,038	4.04	New
Majority			88,630	44.64
Registered electors			364,381
Turnout				56.99
	LDP hold

Party		Candidate	Votes	%	±%
	LDP	Motoo Hayashi	114,010	63.87	*New*
	New Frontier	Hiroshi Sudo [ja]	44,408	24.88	New
	JCP	Susumu Ichikawa	17,234	9.65	New
	Liberal League	Yasuyuki Kawamura	2,854	1.60	New
Majority			69,602	38.99
Registered electors
Turnout
	LDP win (new seat)

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