Yamaguchi 1st district

Yamaguchi 1st District
Yamaguchi 1st District
Parliamentary constituency; for the Japanese House of Representatives
	Numbered map of Yamaguchi Prefecture; single-member districts
Prefecture	Yamaguchi
Proportional District	Chūgoku
Electorate	362,270 (2017)
Major settlements	Yamaguchi, Shūnan, and Hōfu
Current constituency
Party	LDP
Representative	Masahiko Kōmura

Yamaguchi 1st district (山口[県第]1区, Yamaguchi[-ken dai-]ikku) is a single-member electoral district for the House of Representatives, the lower house of the National Diet of Japan. It is located in Yamaguchi and covers the prefectural capital Yamaguchi (without the former town of Atō), parts of the city of Shūnan (the area of former municipalities Tokuyama city, Shinnan'yō city, Kano town) and the city of Hōfu. As of September 2012, 359,151 eligible voters were resident in the district.^[2]

Before the electoral reform of the 1990s, the area had been part of the five-member Yamaguchi 2nd district which covered roughly the Eastern half of the prefecture and had been the former district of LDP presidents Nobusuke Kishi and Eisaku Satō. Another representative from the pre-reform 2nd district for the LDP was former four-term Tokuyama city mayor Sakahiko Kōmura. When Kōmura retired, his fourth son Masahiko won a seat in the district in 1980 and defended it in all pre-reform elections. After the electoral reform, Masahiko Kōmura took over the new single-member 1st district for the LDP. The main opposition NFP and the newly founded DPJ did not even nominate candidates in the first post-reform election of 1996, his only challengers were a Communist and an unaffiliated independent. In subsequent elections, the enlarged/"New" DPJ did nominate candidates; but Kōmura held onto the seat by large margins, even in the countrywide DPJ victory of 2009. The district remains – like two other of Yamaguchi's districts – an unbroken "conservative kingdom" (hoshu ōkoku). In the 2017 election Masahiko Kōmura retired, his eldest son Masahiro extended the streak with a two-thirds majority in his first election.

Kōmura was a minister in several cabinets in the 1990s and 2000s (Murayama, Obuchi, Mori II, Fukuda, Abe I). From 2000 to 2012, Kōmura led the Banchō Seisaku Kenkyūjo (previously Kōmoto faction, now Ōshima faction), one of the smaller, but well-established factions of the LDP that traces its roots to the centrist Reform Party and the pre-war Constitutional Democratic Party. In 2012, LDP president Shinzō Abe (Machimura faction, also from Yamaguchi) nominated him to succeed fellow faction member Tadamori Ōshima as vice president of the party.

List of representatives

Representative		Party	Term	Notes
Masahiko Kōmura	1996	Liberal Democratic Party	1996–	Incumbent
	2000
	2003
	2005
	2009
	2012
	2014
Masahiro Kōmura	2017

Recent results

2021^[3]
Party		Candidate	Votes	%	±%
	LDP	Masahiro Kōmura	118,882	70.1	1.0
	CDP	Kazuya Ouchi	50,684	29.9	10.9
Turnout				48.50	5.93
	LDP hold

2017^[4]
Party		Candidate	Votes	%
	LDP - Kōmeitō	Masahiro Kōmura	133,221	69.1
	Kibo	Kazuya Ouchi	36,582	19.0
	JCP	Hiroshi Goto	17,924	9.3
	HRP	Miwako Kawai	5,070	2.6
Turnout			197,192	54.43

2014^[5]
Party		Candidate	Votes	%	±%
	LDP	Masahiko Kōmura	120,084	68.1	2.2
	Ishin	Tsutomu Nakamura	39,375	22.3
	JCP	Naoko Fujii	16,890	9.6	4.8
Turnout				50.63	7.51
	LDP hold

2012^[6]
	Candidate	Votes	%	±%
LDP (NK)	Masahiko Kōmura	133,776	65.9	+8.9
TPJ (NPD)	Tetsunari Iida	35,622	17.6	new
DPJ	Satoshi Tomimura	23,813	11.7	new
JCP	Tomiyuki Uonaga	9,753	4.8	new

2009^[7]
	Candidate	Votes	%	±%
LDP	Masahiko Kōmura	142,103^{[nb 1]}	57.0	−6.8
DPJ	Tsutomu Takamura	94,253^{[nb 1]}	37.8	new
JCP	Sadayoshi Yoshida	10,114	4.1	new
HRP	Jun'ichi Murata	2,889	1.2	new

Note:

^ ^a ^b Decimals from anbunhyō omitted

References

^ "衆議院小選挙区 - 確定投票状況" [House of Representatives election district - Fixed Vote Status]. Yamaguchi Prefecture Election Commission (in Japanese). 2017.
^ MIC: 平成24年9月2日現在選挙人名簿及び在外選挙人名簿登録者数>選挙区ごとの選挙人名簿及び在外選挙人名簿登録者数等 (in Japanese)
^ 開票速報小選挙区：山口- 2021衆議 (in Japanese). NHK. Retrieved 8 July 2022.
^ Asahai Shimbun: election results in Yamaguchi's single-member districts
^ 2014年12月14日(日) 投票小選挙区山口１区 (in Japanese). NHK. Retrieved 8 July 2022.
^ 総選挙2012>開票結果小選挙区山口. Yomiuri Shimbun (in Japanese). Retrieved 2013-10-09.
^ ２００９総選挙開票結果小選挙区・山口1区. Asahi Shimbun (in Japanese). Retrieved 2013-10-09.

[anbun-8] Decimals from anbunhyō omitted

[VoteTurnout2017-1] "衆議院小選挙区 - 確定投票状況" [House of Representatives election district - Fixed Vote Status]. Yamaguchi Prefecture Election Commission (in Japanese). 2017.

[2] MIC: 平成24年9月2日現在選挙人名簿及び在外選挙人名簿登録者数>選挙区ごとの選挙人名簿及び在外選挙人名簿登録者数等 (in Japanese)

[3] 開票速報小選挙区：山口- 2021衆議 (in Japanese). NHK. Retrieved 8 July 2022.

[4] Asahai Shimbun: election results in Yamaguchi's single-member districts

[5] 2014年12月14日(日) 投票小選挙区山口１区 (in Japanese). NHK. Retrieved 8 July 2022.

[6] 総選挙2012>開票結果小選挙区山口. Yomiuri Shimbun (in Japanese). Retrieved 2013-10-09.

[7] ２００９総選挙開票結果小選挙区・山口1区. Asahi Shimbun (in Japanese). Retrieved 2013-10-09.

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[nb 1]

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: Fukushiro Nukaga, Ibaraki 2nd Vice Speaker of the House of Representatives of Japan: Banri Kaieda, Tokyo PR
Hokkaidō (8 block seats, 12 district seats)	Hokkaidō 1 2 3 4 5 6 7 8 9 10 11 12
Tōhoku (12 block seats, 21 district 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 (19 block seats, 33 district 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 (23 block seats, 36 district 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 (19 block seats, 30 district 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 (10 block seats, 18 district 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 (21 block seats, 33 district 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 (28 block seats, 45 district 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 (10 block seats, 17 district seats)	Tottori 1 2 Shimane 1 2 Okayama 1 2 3 4 Hiroshima 1 2 3 4 5 6 Yamaguchi 1 2 3
Shikoku (6 block seats, 10 district seats)	Tokushima 1 2 Kagawa 1 2 3 Ehime 1 2 3 Kōchi 1 2
Kyūshū (20 block seats, 34 district 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
Districts eliminated in the 2002 reapportionments	Hokkaido 13 Yamagata 4 Shizuoka 9 Shimane 3 Oita 4
Districts eliminated in the 2013 reapportionments	Fukui 3 Yamanashi 3 Tokushima 3 Kochi 3 Saga 3
Districts eliminated in the 2017 reapportionments	Aomori 4 Iwate 4 Mie 5 Nara 4 Kumamoto 5 Kagoshima 5
Districts eliminated in the 2022 reapportionments	Miyagi 6 Fukushima 5 Niigata 6 Shiga 4 Wakayama 3 Okayama 5 Hiroshima 7 Yamaguchi 4 Ehime 4 Nagasaki 4