Niigata's Diet electoral districts

Niigata's House of Representatives districts as of 2018^[1]

Niigata currently sends 12 elected members to the Diet of Japan, 10 to the House of Representatives and 2 to the House of Councillors. The prefecture lost 1 Councillor due to reapportionment in 2019.

House of Representatives

The current House of Representatives Niigata delegation consists of 6 members of the LDP, 3 members of the CDP and 1 independent politician..

District seats

District	Representative	Party	Incumbency
1st	Chinami Nishimura (CDP-Niigata City)	CDP	1 November 2017 – present
2nd	Ken'ichi Hosoda (LDP)	LDP	3 November 2021 – present
3rd	Hiroaki Saitō (LDP-Murakami)	LDP	3 November 2021 – present
4th	Makiko Kikuta (CDP-Sanjō)	CDP	1 November 2017 – present
5th	Ryuichi Yoneyama (I-Uonuma)	Independent	3 November 2021 – present
6th	Mamoru Umetani (CDP-Jōetsu)	CDP	3 November 2021 – present

PR seats

Representative	Party	District contested	Incumbency
Shūichi Takatori (LD-Jōetsu)	LDP	Niigata-6th	26 December 2012 – present
Ichirō Tsukada (LD-Niigata City)		Niigata-3rd	24 December 2014 – present
Hirohiko Izumida (LD-Nagaoka)		Niigata-5th	1 November 2017 – present
Isato Kunisada (LD-Sanjō)		Niigata-4th	3 November 2021 – present

House of Councillors

The current House of Councillors Niigata delegation consists of 1 member of the CDP and 1 member of the LDP. The members are elected from the Niigata at-large district.

Party	Councillors	Term ends	Incumbency
LDP	Kazuhiro Kobayashi	2028	26 July 2022 – present
CDP	Sakura Uchikoshi	2025	29 July 2019 – present

References

^ "新潟県" (PDF). Ministry of Internal Affairs and Communications. Retrieved 27 February 2018.

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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, 23 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, 32 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, 33 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, 25 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, 19 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, 32 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, 47 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, 20 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, 11 district seats)

Tokushima: 1; 2
Kagawa: 1; 2; 3
Ehime: 1; 2; 3
Kōchi: 1; 2

Kyūshū
(20 block seats, 35 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

Shizuoka 9

Shimane 3

Oita 4

Districts eliminated
in the 2013 reapportionments

Fukui 3

Yamanashi 3

Tokushima 3

Kochi 3

Districts eliminated
in the 2017 reapportionments

Aomori 4

Nara 4

Kagoshima 5

Districts eliminated
in the 2022 reapportionments

Shiga 4

Okayama 5

Ehime 4

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