Nagano 1st district

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

Nagano 1st District
Parliamentary constituency for the Japanese House of Representatives
Numbered map of Nagano Prefecture single-member districts
Prefecture	Nagano
Proportional District	Hokurikushin'etsu
Electorate	424,275[1]
Current constituency
Created	1994
Seats	One
Party	CDP
Representative	Takashi Shinohara
Municipalities	Iiyama, Nakano, Suzaka, part of Nagano, Kamitakai District, Shimominochi District, and Shimotakai District

List of representatives

Election	Representative	Party		Notes
1996	Kenji Kosaka		New Frontier
2000			Liberal Democratic
2003
2005
2009	Takashi Shinohara		Democratic
2012
2014
2017			Independent
2021	Kenta Wakabayashi [ja]		Liberal Democratic
2024	Takashi Shinohara		CDP

Election results

2024^[2]

Party		Candidate	Votes	%	±%
	CDP	Takashi Shinohara pr incumbent	105,231	46.26	5.03
	LDP	Kenta Wakabayashi [ja](incumbent) (endorsed by Komeito	88,792	39.03	12.26
	Ishin	Kiyoshi Wakasa	33,470	14.71
Turnout			227,493	55.74	4.00
	CDP gain from LDP

2021^[3]

Party		Candidate	Votes	%	±%
	Liberal Democratic	Kenta Wakabayashi	128,423	51.29	16.26
	CDP	Takashi Shinohara (Incumbent) (elected by Hokurikushin'etsu PR block)	121,962	48.71	New
Registered electors			425,440
Turnout				59.74	2.36
	LDP gain from CDP

2017^[4]

Party		Candidate	Votes	%	±%
	Independent	Takashi Shinohara (Incumbent)	131,883	54.06	New
	Liberal Democratic	Yutaka Komatsu [ja] (Incumbent-Hokurikushin'etsu PR block)	85,460	35.03	0.23
	Innovation	Masayuki Hashimoto	22,817	9.35	New
	Society for Making Nagano Prefecture the Best Economy in Japan	Yukinari Komamura	18,675	1.55	New
Registered electors			432,700
Turnout				57.38	6.79
	Independent hold

2014^[5]

Party		Candidate	Votes	%	±%
	Democratic	Takashi Shinohara (Incumbent)	96,333	45.82	9.22
	Liberal Democratic	Yutaka Komatsu [ja] (Incumbent-Hokurikushin'etsu PR block) (reelected by Hokurikushin'etsu PR block)	74,137	35.26	2.56
	Communist	Ryosuke Takeda	26,903	12.80	1.70
	Future Generations	Takahito Miyazawa [ja] (Incumbent-Hokurikushin'etsu PR block)	12,888	6.13	New
Registered electors			425,446
Turnout				50.59	8.17
	Democratic hold

2012^[6]

Party		Candidate	Votes	%	±%
	Democratic	Takashi Shinohara (Incumbent)	89,400	36.60	14.67
	Liberal Democratic	Yutaka Komatsu [ja] (elected by Hokurikushin'etsu PR block)	79,860	32.70	6.70
	Restoration	Takahito Miyazawa [ja] (elected by Hokurikushin'etsu PR block)	47,870	19.60	New
	Communist	Ryosuke Takeda	27,119	11.10	2.57
Registered electors			427,377
Turnout				58.76	15.51
	Democratic hold

2009^[7]

Party		Candidate	Votes	%	±%
	Democratic	Takashi Shinohara (Incumbent-Hokurikushin'etsu PR block)	161,543	51.27	10.45
	Liberal Democratic	Kenji Kosaka (Incumbent)	124,136	39.40	8.04
	Communist	Norihira Yamaguchi	26,872	8.53	3.21
	Happiness Realization	Motofumi Yokota	2,535	0.80	New
Registered electors			429,859
Turnout				74.27	4.09
	Democratic gain from LDP

2005^[8]

Party		Candidate	Votes	%	±%
	Liberal Democratic	Kenji Kosaka (Incumbent)	140,831	47.44	2.49
	Democratic	Takashi Shinohara (Incumbent-Hokurikushin'etsu PR block) (reelected by Hokurikushin'etsu PR block)	121,185	40.82	1.76
	Communist	Sanae Nakano	34,869	11.74	0.73
Registered electors			430,657
Turnout				70.18	7.77
	LDP hold

2003^[9]

Party		Candidate	Votes	%	±%
	Liberal Democratic	Kenji Kosaka (Incumbent)	118,065	44.95	3.76
	Democratic	Takashi Shinohara (elected by Hokurikushin'etsu PR block)	111,821	42.58	11.40
	Communist	Sanae Nakano	32,757	12.47	7.64
Registered electors			429,585
Turnout				62.41	0.59
	LDP hold

2000^[10]

Party		Candidate	Votes	%	±%
	Liberal Democratic	Kenji Kosaka (Incumbent)	127,010	48.71	25.64
	Democratic	Yoshikazu Kanakubo	81,289	31.18	New
	Communist	Sanae Nakano	52,445	20.11	12.59
Turnout				63.00
	LDP hold

1996^[11]

Party		Candidate	Votes	%	±%
	New Frontier	Kenji Kosaka	118,386	41.76	New
	New Party Sakigake	Shusei Tanaka	78,401	27.65	New
	Liberal Democratic	Masatoshi Wakabayashi	65,403	23.07	New
	Communist	Kazuhiro Miyagawa	21,329	7.52	New
Turnout