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Hokkaidō 11th District
Hokkaidō 11th District
Parliamentary constituency; for the Japanese House of Representatives
	Numbered map of Hokkaidō Prefecture single-member districts
Prefecture	Hokkaidō
Proportional District	Hokkaidō
Electorate	283,874 (2021)
Current constituency
Created	1994
Seats	One
Party	Constitutional Democratic Party
Representative	Kaori Ishikawa
Created from	Hokkaidō's 5th "medium-sized" district
Municipalities	Obihiro and Tokachi Subprefecture

Hokkaidō 11th district (北海道[第]11区, Hokkaidō-[dai-]jūikku) is a single-member constituency of the House of Representatives, the lower house of the national Diet of Japan. It is located in southeastern Hokkaidō and consists of the city of Obihiro and the surrounding Tokachi Subprefecture. As of 2016, 291,852 eligible voters were registered in the district.^[2] The district is the country's second largest in terms of area after the neighbouring 12th district.

The district has been represented by Kaori Ishikawa of the Constitutional Democratic Party since the 2017 general election, when she defeated the incumbent member Yūko Nakagawa from the Liberal Democratic Party. Both are incidentally the spouse of former members of the district. Ishikawa is married to Tomohiro Ishikawa, who was an MP for the district from 2009 until his defeat to Yūko Nakagawa in the 2012 general election. Nakagawa is married to former member and Finance Minister Shōichi Nakagawa.

Background

The 11th district and its predecessor had been long dubbed as the "Nakagawa Kingdom" due to continuous winning streak by politicians from the Nakagawa family in the district. The district (when still part of the medium-sized 5th district) was won seven consecutive times from 1963 by former minister and LDP heavyweight Ichirō Nakagawa. After Nakagawa's suicide in 1983, his son Shōichi won the district in the subsequent by-election. Shōichi continued to hold the district after the 1996 electoral reforms that introduced parallel voting and smaller single-member districts. He won the district for a total of eight consecutive times until the 2009 general election. Nakagawa was defeated by DPJ candidate Tomohiro Ishikawa, ending his family's 46-year dominance in the district. He killed himself in October the same year.^[3] His widow, Yūko managed to regain the district in the 2012 election, holding it until her defeat in 2017 to Tomohiro's wife Kaori.

List of representatives

Representative		Dates	Notes
Shōichi Nakagawa	LDP	1996 – 2009	Also lost in the PR block
Tomohiro Ishikawa	DPJ	2009 – 2010
	Ind	2010 – 2011
	NPD	2011 – 2012
Yūko Nakagawa	LDP	2012 – 2017	Also lost in the PR block
Kaori Ishikawa	CDP	2017 –	Incumbent

Election results

2024
Party		Candidate
	CDP	Kaori Ishikawa
	LDP	Yūko Nakagawa (endorsed by Kōmeitō and NPD)
	JCP	Kōhei Satō
Turnout

2021^[4]
Party		Candidate	Votes	%	±%
	CDP	Kaori Ishikawa	91,538	51.75	2.72
	LDP	Yūko Nakagawa (endorsed by Kōmeitō and NPD) (Elected via PR)	85,336	48.25	2.72
Majority				3.50	5.44
Turnout				63.51	0.28
	CDP hold		Swing	2.72

2017^[5]
Party		Candidate	Votes	%	±%
	CDP	Kaori Ishikawa^{[note 1]}	98,214	54.47	17.66
	LDP	Yūko Nakagawa (endorsed by Kōmeitō and NPD)	82,096	45.53	6.69
Majority			16,105	8.94
Turnout				63.79	4.15
	CDP gain from LDP		Swing	12.18

2014^[6]
Party		Candidate	Votes	%	±%
	LDP	Yūko Nakagawa	87,118	52.22	1.23
	Democratic	Takeo Mitsu^{[note 2]}	61,405	36.81	4.42
	JCP	Yōsuke Hatanaka	18,303	10.97	3.19
Majority			25,713	15.41
Turnout				59.64	1.35
	LDP hold		Swing	2.84

2012^[7]
Party		Candidate	Votes	%	±%
	LDP	Yūko Nakagawa	86,719	50.99	10.09
	NP-Daichi	Tomohiro Ishikawa (elected by PR)	70,112	41.23	12.80
	JCP	Yukari Watanabe	13,235	7.78	2.71
Majority			16,607	9.76
Turnout				60.99
	LDP gain from NP-Daichi		Swing	11.45

2009^[8]
Party		Candidate	Votes	%	±%
	Democratic	Tomohiro Ishikawa	118,655	54.03	13.31
	LDP	Shōichi Nakagawa	89,818	40.90	10.61
	JCP	Yukari Watanabe	11,140	5.07	2.70
Majority			28,847	13.13
	Democratic gain from LDP		Swing	11.96

2005^[9]
	Candidate	Votes	%
LDP	Shōichi Nakagawa	107,506	51.51
Democratic	Tomohiro Ishikawa	84,626	40.72
JCP	Akio Hasebe	16,145	7.77

2003
	Candidate	Votes	%
LDP	Shōichi Nakagawa	112,210	62.0
Social Democratic	Keiko Yamauchi	52,395	29.0
JCP	Akio Hasebe	16,235	9.0

2000
	Candidate	Votes	%
LDP	Shōichi Nakagawa	112,297	57.7
Democratic	Motoko Ideta	57,486	29.6
JCP	Sōji Asanuma	24,717	12.7

1996
	Candidate	Votes	%
LDP	Shōichi Nakagawa	97,428	53.5
Democratic	Ryūji Ikemoto	67,250	37.0
JCP	Itoe Satō	17,319	9.5

Footnotes

^ The CDP is the successor party of the DPJ in this district, therefore the voting figures of the DPJ candidate in the previous election are used as a reference.
^ The DPJ is the successor party of the NPD in this district, therefore the voting figures of the NPD candidate in the previous election are used as a reference.