Chiba 10th district
Parliamentary constituency for theJapanese 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 ofAsahi,Chōshi,Katori,Narita, andSōsa. Districts ofKatori.

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 theHouse of Representatives in the nationalDiet of Japan located inChiba Prefecture.

• Asahi
• Chōshi
• Katori
• Narita
• Sōsa
• Katori District

^[2][3]

• Asahi
• Chōshi
• Katori
• Narita
• Sōsa
• Katori District
• Part ofSanbu District
  • Part ofYokoshibahikari (FormerHikari area)

^[4][5]

• Asahi
• Chōshi
• Sawara
• Narita
• Yōkaichiba
• Kaijō District
• Sōsa District

^[6]

2024^[16]

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
	LDPhold

2021^[15]

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
	LDPhold

2017^[14]

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
	LDPhold

2014^[13]

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
	LDPhold

2012^[12]

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
	LDPgain fromDemocratic

2009^[11]

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
	Democraticgain fromLDP

2005^[10]

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
	LDPhold

2003^[9]

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
	LDPhold

2000^[8]

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
	LDPhold

• House of Representatives (Japan) districts in Chiba Prefecture

• Articles with Japanese-language sources (ja)
• CS1 Japanese-language sources (ja)
• Articles with short description
• Short description matches Wikidata