# Southern Kanto proportional representation block

The Southern Kantō proportional representation block (Hirei [daihyō] Minami-Kantō burokku (比例[代表]南関東ブロック)) is one of eleven proportional representation (PR) "blocks", multi-member constituencies for the House of Representatives in the Diet of Japan. It consists of Southern parts of the Kantō region covering Chiba, Kanagawa and Yamanashi prefectures. Following the introduction of proportional voting it initially elected 23 representatives in the 1996 general election, then 21 after the total number of PR seats had been reduced from 200 to 180. After reapportionment in 2002 the number was increased to 22 representatives and again to 23 in 2022.

## Summary of results

With a district magnitude of 22, Southern Kantō is the second largest PR block behind Kinki and gives smaller parties an opportunity to pick up seats.
| general election | DPJ | DPJ | DPJ | LDP | LDP | LDP | Kōmeitō | Kōmeitō | Kōmeitō | JCP | JCP | JCP | SDP | SDP | SDP | NFP ('96)/LP ('00)/ TPJ ('12)/PLP ('14) | NFP ('96)/LP ('00)/ TPJ ('12)/PLP ('14) | NFP ('96)/LP ('00)/ TPJ ('12)/PLP ('14) | JRP ('12)/JIP ('14) | JRP ('12)/JIP ('14) | JRP ('12)/JIP ('14) | YP | YP | YP | Others | Others | Others |
| general election | Votes | % | Seats | Votes | % | Seats | Votes | % | Seats | Votes | % | Seats | Votes | % | Seats | Votes | % | Seats | Votes | % | Seats | Votes | % | Seats | Votes | % | Seats |
| 1996 | 1,331,850 | 23.5 | 5 | 1,820,846 | 32.1 | 7 | – | – | – | 403,875 | 7.1 | 3 | 280,391 | 4.9 | 1 | 1,667,552 | 29.4 | 7 | – | – | – | – | – | – | 174,662 | 3.1 | 0 |
| 2000 | 1,940,792 | 27.7 | 6 | 1,734,297 | 24.7 | 6 | 871,150 | 12.4 | 3 | 808,453 | 11.5 | 2 | 670,141 | 9.6 | 2 | 839,845 | 12.0 | 2 | – | – | – | – | – | – | 145,858 | 2.1 | 0 |
| 2003 | 2,819,165 | 40.0 | 9 | 2,441,590 | 34.6 | 8 | 969,464 | 13.7 | 3 | 521,309 | 7.4 | 1 | 300,599 | 4.3 | 1 | – | – | – | – | – | – | – | – | – | – | – | – |
| 2005 | 2,439,549 | 29.5 | 7 | 3,510,617 | 42.4 | 10 | 1,007,504 | 12.2 | 3 | 566,945 | 6.8 | 1 | 444,753 | 5.4 | 1 | – | – | – | – | – | – | – | – | – | 309,851 | 3.7 | 0 |
| 2009 | 3,695,159 | 43.0 | 11 | 2,233,560 | 26.0 | 6 | 862,427 | 10.0 | 2 | 601,259 | 7.0 | 1 | 369,754 | 4.3 | 1 | – | – | – | – | – | – | 605,358 | 7.0 | 1 | 226,946 | 2.6 | 0 |
| 2012 | 1,323,048 | 17.3 | 4 | 2,020,043 | 26.4 | 6 | 810,936 | 10.6 | 2 | 447,890 | 5.9 | 1 | 147,191 | 1.9 | 0 | 477,309 | 6.2 | 1 | 1,443,270 | 18.9 | 5 | 951,294 | 12.4 | 3 | 20,987 | 0.3 | 0 |
| 2014 | 1,203,572 | 17.6 | 4 | 2,321,609 | 34.0 | 8 | 875,712 | 12.8 | 3 | 813,634 | 11.9 | 3 | 132,542 | 1.9 | 0 | 175,431 | 2.6 | 0 | 1,053,221 | 15.4 | 4 | – | – | – | 260,648 | 3.9 | 0 |
| 2017 | | | | 2,356,614 | | | 787,461 | | | | | | | | | | | | | | | | | | | | |
| 2021 | | | | 2,590,787 | | | 850,667 | | | | | | | | | | | | | | | | | | | | |
Party names are abbreviated as follows (format: abbreviation, translated name, Japanese name, English name):
* DPJ "Democratic Party", Minshutō, Democratic of Japan
* LDP Liberal Democratic Party, Jiyūminshutō
* Kōmeitō "Justice Party", Kōmeitō, New Justice Party Party
* JCP Japanese Communist Party, Nihon Kyōsantō
* SDP Social Democratic Party, Shakaiminshutō
* NFP New Frontier Party, Shinshintō
* LP Liberal Party, Jiyūtō
* NSP New Socialist Party, Shin-shakaitō
* LL Liberal League, Jiyū-rengō
* HRP Happiness Realization Party, Kōfuku-jitsugen-tō

## List of representatives

Note: Party affiliations as of election day.
| 1996– | 2000– | 2003– | 2005– | 2009– | 2012– |
| Kazuo Shii ||||||
| Masahiro Nakaji | Takeshi Ōmori | Tomoko Abe | Tomoko Abe | Tomoko Abe | Tomoko Abe |
| Takeshi Ōmori | Tomoko Abe | Hiroyuki Nagahama | Hiroyuki Nagahama resigned 2007, replaced by Hirohisa Fujii | Kazuya Mimura | Yūichi Gotō |
| Shigeru Itō | Yōko Hara | Motohisa Ikeda | Hitoshi Gotō | Ken'ichi Kaneko | Sōichirō Okuno |
| Shun Hayama | Kimiaki Matsuzaki | Yasuhiko Wakai | Hirofumi Ryū | Atsushi Chūgo | Yasuhiko Wakai |
| Sakihito Ozawa | Shun Hayama | Naohiko Katō | Hisayasu Nagata resigned 2006, replaced by Motohisa Ikeda | Kōichirō Katsumata | Yukio Ubukata |
| Tetsuo Kitamura | Hitoshi Gotō | Ken'ichirō Satō | Tetsundo Iwakuni | Katsuhito Yokokume | Yōichirō Aoyagi |
| Ken'ichirō Satō | Akira Ōide | Hiroshi Sudō | Akira Uchiyama | Makoto Yamazaki | Katsuhito Nakajima |
| Yukio Ubukata | Nobuhiko Sutō | Akira Ōide | Kaname Tajima | Hirohisa Fujii | Tsuyoshi Shiina |
| Hitoshi Yonetsu | Eiji Nagai | Keikō Hakariya | Shigeyuki Tomita | Tomohiko Mizuno | Sakihito Ozawa |
| Yūichi Ichikawa | Takeshi Hidaka | Ai Aoki | Noriko Furuya | Mitsuji Ishida | Manabu Matsuda |
| Nobuo Kawakami | Ryūshi Tsuchida | Nobuo Kawakami | Kazufumi Taniguchi | Tsuyoshi Saitō | Takashi Tanuma |
| Isamu Ueda | Yūichi Ichikawa | Shigeyuki Tomita | Yōichirō Esaki | Shino Aihara | Yuzuru Nishida |
| Shigeyuki Tomita | Nobuo Kawakami | Noriko Furuya | Jirō Ono | Keiichirō Asao | Tamotsu Shiiki |
| Kenzō Yoneda | Isamu Ueda | Shōzaburō Nakamura | Mikio Fujita | Shigeyuki Tomita | Shigeyuki Tomita |
| Kimiaki Matsuzaki | Yasukazu Hamada | Yōichirō Esaki | Kōtarō Nagasaki | Noriko Furuya | Noriko Furuya |
| Kazuya Ishibashi died 1999, replaced by Ken'ichi Mizuno | Hiromichi Watanabe | Hirokazu Matsuno | Masaaki Akaike | Akira Amari | Shin'ichi Nakatani |
| Shōzaburō Nakamura | Kenzō Yoneda | Tsuneo Suzuki | Mineyuki Fukuda | Motoo Hayashi | Hiroaki Kadoyama |
| Sadao Ioku | Yukio Jitsukawa | Ikuzō Sakurai | Nobuhiro Ōmiya | Jun Matsumoto | Noriko Horiuchi |
| Akira Amari | Taei Nakamoto | Yoshitaka Sakurada | Keisuke Suzuki | Ken Saitō | Norihiko Nakayama |
| Hachirō Okonogi | Yoshitaka Sakurada | Hiromichi Watanabe | Taizō Sugimura | Kazunori Tanaka | Tomohiro Yamamoto |
| Kunio Tanabe | – | Daishirō Yamagiwa | Toshio Ukishima | Hirokazu Matsuno | Mineyuki Fukuda |
| Kazunori Tanaka | – | – | – | – | – |

## Election result 2009

Tokyo block results in the 2009 general election :
| LDP: 2,233,560 votes (26.0%), 6 seats | LDP: 2,233,560 votes (26.0%), 6 seats | LDP: 2,233,560 votes (26.0%), 6 seats | LDP: 2,233,560 votes (26.0%), 6 seats | LDP: 2,233,560 votes (26.0%), 6 seats | DPJ: 3,695,159 votes (43.0%), 11 seats | DPJ: 3,695,159 votes (43.0%), 11 seats | DPJ: 3,695,159 votes (43.0%), 11 seats | DPJ: 3,695,159 votes (43.0%), 11 seats | DPJ: 3,695,159 votes (43.0%), 11 seats | Kōmeitō: 862,427 votes (10.0%), 2 seats | Kōmeitō: 862,427 votes (10.0%), 2 seats | Kōmeitō: 862,427 votes (10.0%), 2 seats | Kōmeitō: 862,427 votes (10.0%), 2 seats | Kōmeitō: 862,427 votes (10.0%), 2 seats |
| # | Candidate | District | "Loss ratio" (sekihairitsu) | Elected | # | Candidate | District | "Loss ratio" | Elected | # | Candidate | District | "Loss ratio" | Elected |
| 1 | Akira Amari | Kanagawa 13 | 97.3% | Elected | 1 | Kazuya Mimura | Kanagawa 2 | 99.5% | Elected | 1 | Shigeyuki Tomita | PR only | PR only | Elected |
| 1 | Motoo Hayashi | Chiba 10 | 90.8% | Elected | 1 | Ken'ichi Kaneko | Chiba 11 | 96.3% | Elected | 2 | Noriko Furuya | PR only | PR only | Elected |
| 1 | Jun Matsumoto | Kanagawa 1 | 87.1% | Elected | 1 | Atsushi Chūgo | Chiba 12 | 85.5% | Elected | 3 | Kazufumi Taniguchi | PR only | PR only | – |
| 1 | Ken Saitō | Chiba 7 | 82.9% | Elected | 1 | Kōichirō Katsumata | Kanagawa 15 | 76.1% | Elected | 4 | Takashi Kawanami | PR only | PR only | – |
| 1 | Kazunori Tanaka | Kanagawa 10 | 77.5% | Elected | 1 | Katsuhito Yokokume | Kanagawa 11 | 64.0% | Elected | 5 | Masaaki Kubota | PR only | PR only | – |
| 1 | Hirokazu Matsuno | Chiba 3 | 76.5% | Elected | 1 | Makoto Yamazaki | Kanagawa 8 | 57.8% | Elected | YP: 605,358 votes (7.0%), 1 seat | YP: 605,358 votes (7.0%), 1 seat | YP: 605,358 votes (7.0%), 1 seat | YP: 605,358 votes (7.0%), 1 seat | YP: 605,358 votes (7.0%), 1 seat |
| 1 | Eisuke Mori | Chiba 11 | Won district | Won district | 1 | Kaname Tajima | Chiba 1 | Won district | Won district | # | Candidate | District | "Loss ratio" | Elected |
| 1 | Yasukazu Hamada | Chiba 12 | Won district | Won district | 1 | Yū Kuroda | Chiba d | Won district | Won district | 1 | Keiichirō Asao | Kanagawa 4 | 79.3% | Elected |
| 1 | Yoshihide Suga | Kanagawa 2 | Won district | Won district | 1 | Kazumasa Okajima | Chiba 3 | Won district | Won district | 1 | Kenji Eda | Kanagawa 8 | Won district | Won district |
| 1 | Tarō Kōno | Kanagawa 15 | Won district | Won district | 1 | Yoshihiko Noda | Chiba 4 | Won district | Won district | 3 | Kō Tanaka | Chiba 5 | 33.2% | – |
| 1 | Karen Makishima | Kanagawa 17 | 75.7% | – | 1 | Hirotaka Murakoshi | Chiba 5 | Won district | Won district | 3 | Itoko Noyashiki | Chiba 4 | 17.4% | – |
| 1 | Daishirō Yamagiwa | Kanagawa 18 | 74.5% | – | 1 | Yukio Ubukata | Chiba 6 | Won district | Won district | 3 | Masanori Katō | Kanagawa 3 | 16.2% | – |
| 1 | Manabu Sakai | Kanagawa 5 | 74.5% | – | 1 | Akira Uchiyama | Chiba 7 | Won district | Won district | 3 | Yuki Kohira | Chiba 6 | 13.9% | – |
| 1 | Ken'ichi Mizuno | Chiba 9 | 74.2% | – | 1 | Kimiaki Matsuzaka | Chiba 8 | Won district | Won district | JCP: 601,299 votes (7.0%), 1 seat | JCP: 601,299 votes (7.0%), 1 seat | JCP: 601,299 votes (7.0%), 1 seat | JCP: 601,299 votes (7.0%), 1 seat | JCP: 601,299 votes (7.0%), 1 seat |
| 1 | Jun Hayashi | Kanagawa 4 | 71.8% | – | 1 | Sōichirō Okuno | Chiba 9 | Won district | Won district | # | Candidate | District | "Loss ratio" | Elected |
| 1 | Hachirō Okonogi | Kanagawa 3 | 71.1% | – | 1 | Hajime Yatagawa | Chiba 10 | Won district | Won district | 1 | Kazuo Shii | PR only | PR only | Elected |
| 1 | Keisuke Suzuki | Kanagawa 7 | 69.9% | – | 1 | Yasuhiko Wakai | Chiba 13 | Won district | Won district | 2 | Kimie Hatano | PR only | PR only | – |
| 1 | Yoshitaka Sakurada | Chiba 8 | 69.8% | – | 1 | Mieko Nakabayashi | Kanagawa 1 | Won district | Won district | 3 | Takashi Kasaki | Kanagawa 10 | 21.6% | – |
| 1 | Yukio Jitsukawa | Chiba 13 | 68.2% | – | 1 | Eiko OKamoto | Kanagawa 3 | Won district | Won district | 3 | Midori Fujii | Kanagawa 6 | 16.9% | – |
| 1 | Zentarō Kamei | Kanagawa 16 | 67.5% | – | 1 | Kazuyoshi Nagashima | Kanagawa 4 | Won district | Won district | 3 | Yasuhiko Furuya | Kanagawa 3 | 15.4% | – |
| 1 | Hiromichi Watanabe | Chiba 6 | 66.8% | – | 1 | Keishū Tanaka | Kanagawa 5 | Won district | Won district | 3 | Hiroyuki Muneta | Kanagawa 18 | 14.3% | – |
| 1 | Shōichi Usui | Chiba 1 | 66.4% | – | 1 | Motohisa Ikeda | Kanagawa 6 | Won district | Won district | 3 | Chūhei Ogura | Chiba 2 | 14.3% | – |
| 1 | Jirō Akama | Kanagawa 14 | 66.3% | – | 1 | Nobuhiko Sutō | Kanagawa 7 | Won district | Won district | 3 | Kazuko Saitō | Chiba 4 | 14.2% | – |
| 1 | Kentarō Sonoura | Chiba 5 | 65.3% | – | 1 | Hirofumi Ryū | Kanagawa 9 | Won district | Won district | 3 | Hideo Katō | Chiba 8 | 13.9% | – |
| 1 | Ikuzō Sakurai | Kanagawa 12 | 62.8% | – | 1 | Kōriki Jōjima | Kanagawa 10 | Won district | Won district | 3 | Akiko Endō | Yamanashi 1 | 13.0% | – |
| 1 | Akiko Yamanaka | Chiba 2 | 58.0% | – | 1 | Ikkō Nakatsuka | Kanagawa 12 | Won district | Won district | SDP: 369,751 votes (4.3%), 1 seat | SDP: 369,751 votes (4.3%), 1 seat | SDP: 369,751 votes (4.3%), 1 seat | SDP: 369,751 votes (4.3%), 1 seat | SDP: 369,751 votes (4.3%), 1 seat |
| 1 | Jirō Ono | Yamanashi 3 | 56.3% | – | 1 | Hidnori Tachibana | Kanagawa 13 | Won district | Won district | # | Candidate | District | "Loss ratio" | Elected |
| 1 | Mikio Fujita | Chiba 4 | 52.6% | – | 1 | Kentarō Motomura | Kanagawa 14 | Won district | Won district | 1 | Tomoko Abe | Kanagawa 12 | 43.0% | Elected |
| 1 | Masaaki Akaike | Yamanashi 1 | 51.2% | – | 1 | Yūichi Gotō | Kanagawa 16 | Won district | Won district | 1 | Keiko Ueda | Chiba 7 | 18.3% | – |
| 1 | Mineyuki Fukuda | Kanagawa 8 | 42.3% | – | 1 | Yōsuke Kamiyama | Kanagawa 17 | Won district | Won district | 3 | Katsuko Murakami | PR only | PR only | – |
| 1 | Norihiro Nakayama | Kanagawa 9 | 38.7% | – | 1 | Takeshi Hidaka | Kanagawa 18 | Won district | Won district | PNP: 102,992 votes (1.2%), no seat | PNP: 102,992 votes (1.2%), no seat | PNP: 102,992 votes (1.2%), no seat | PNP: 102,992 votes (1.2%), no seat | PNP: 102,992 votes (1.2%), no seat |
| 32 | Yōichirō Esaki | PR only | PR only | – | 1 | Sakihito Ozawa | Yamanashi 1 | Won district | Won district | # | Candidate | District | "Loss ratio" | Elected |
| 33 | Toshio Ukishima | PR only | PR only | – | 1 | Takehiro Sakaguchi | Yamanashi 2 | Won district | Won district | 1 | Satoshi Ichikawa | PR only | PR only | – |
| 34 | Seiichi Sasaki | PR only | PR only | – | 1 | Hitoshi Gotō | Yamanashi 3 | Won district | Won district | NPN: 79,792 votes (0.9%), no seat | NPN: 79,792 votes (0.9%), no seat | NPN: 79,792 votes (0.9%), no seat | NPN: 79,792 votes (0.9%), no seat | NPN: 79,792 votes (0.9%), no seat |
| 35 | Kazuhiro Honma | PR only | PR only | – | 35 | Hirohisa Fujii | PR only | PR only | Elected | # | Candidate | District | "Loss ratio" | Elected |
| – | – | – | – | – | 36 | Tomohiko Mizuno | PR only | PR only | Elected | 1 | Toshihisa Kawano | PR only | PR only | – |
| – | – | – | – | – | 37 | Mitsuji Ishii | PR only | PR only | Elected | HRP: 44,162 votes (0.5%), no seat | HRP: 44,162 votes (0.5%), no seat | HRP: 44,162 votes (0.5%), no seat | HRP: 44,162 votes (0.5%), no seat | HRP: 44,162 votes (0.5%), no seat |
| – | – | – | – | – | 38 | Tsuyoshi Saitō | PR only | PR only | Elected | # | Candidate | District | "Loss ratio" | Elected |
| – | – | – | – | – | 39 | Shino Aihara | PR only | PR only | Elected | 1 | Hakuun Kurokawa | PR only | PR only | – |
| – | – | – | – | – | 40 | Kenji Hamaguchi | PR only | PR only | – | 2 | Mitsuharu Shiwa | PR only | PR only | – |
| – | – | – | – | – | 41 | Kazutaka Enomoto | PR only | PR only | – | 3 | Shigehiro Ichikawa | PR only | PR only | – |
| – | – | – | – | – | 42 | Akio Sonoda | PR only | PR only | – | 4 | Takashi Yamamoto | PR only | PR only | – |
| – | – | – | – | – | – | – | – | – | – | 5 | Shinji Chiba | PR only | PR only | – |