This article presents detailed results of the 2009 Japanese general election. The results are separated into each of the eleven proportional representation blocks and their corresponding prefectures. In the following tables, candidates elected via single-member district are highlighted in green, while candidates elected via proportional representation are highlighted in red.

Electoral system

The House of Representatives is elected via parallel voting. In the 2009 election, 300 members were elected in single-member districts and 180 via party-list proportional representation in eleven multi-member constituencies, referred to as "PR blocks". Single-member districts are apportioned between prefectures and numbered (1st, 2nd, etc.). Candidates may run solely in a single-member district, solely in PR, or both (dual listing). Dual listed candidates must win at least 10% of the vote in their single-member district in order to be eligible for election via PR. Dual listed candidates who win their single-member district race are not eligible for election via PR.

Candidates on PR lists may be ranked sequentially or, if they are dual listed, ranked equally with one another. If ranked equally, the best-loser ratio (sekihairitsu) of each candidate determines the order of election. This number is determined by dividing their single-member district votes by those of the winning candidate in that district. In this way, the losing candidates who performed best will be elected first.

If a party wins more seats than they have eligible candidates in a PR block, their seats will be distributed to other parties in accordance with the PR formula.

Hokkaido block

+ Single-member constituency results in Hokkaido Constituency Previous member Elected member Votes % Margin Runner-up % Status Hokkaido 1st Takahiro Yokomichi DPJ Takahiro Yokomichi DPJ 183,216 54.3 58,873 Gaku Hasegawa LDP 36.8 DPJ hold Hokkaido 2nd Wakio Mitsui DPJ Wakio Mitsui DPJ 165,267 54.2 71,397 Takamori Yoshikawa LDP 30.8 DPJ hold Hokkaido 3rd Gaku Ishizaki DPJ Satoshi Arai DPJ 186,081 60.9 73,237 Gaku Ishizaki LDP 36.9 DPJ gain from LDP Hokkaido 4th Yoshio Hachiro DPJ Yoshio Hachiro DPJ 149,697 65.5 74,668 Tōru Miyamoto LDP 32.8 DPJ hold Hokkaido 5th Nobutaka Machimura DPJ DPJ 182,952 53.8 31,504 Nobutaka Machimura LDP 44.6 DPJ gain from LDP Hokkaido 6th Takahiro Sasaki DPJ Takahiro Sasaki DPJ 175,879 55.4 55,915 Hiroshi Imazu LDP 37.8 DPJ hold Hokkaido 7th Hiroko Nakano DPJ Yoshitaka Itō LDP 100,150 49.7 914 Hiroko Nakano DPJ 49.2 LDP gain from DPJ Hokkaido 8th Seiji Osaka DPJ Seiji Osaka DPJ 171,114 62.6 113,068 LDP 21.2 DPJ hold Hokkaido 9th Yukio Hatoyama DPJ Yukio Hatoyama DPJ 201,461 66.4 122,345 Satoshi Kawabata LDP 26.1 DPJ hold Hokkaido 10th Tadamasa Kodaira DPJ Tadamasa Kodaira DPJ 159,473 62.6 70,186 Yukari Iijima LDP 35.0 DPJ hold Hokkaido 11th Shōichi Nakagawa DPJ Tomohiro Ishikawa DPJ 118,655 54.0 28,837 Shōichi Nakagawa LDP 40.9 DPJ gain from LDP Hokkaido 12th Tsutomu Takebe DPJ Kenko Matsuki DPJ 127,166 52.4 14,476 Tsutomu Takebe LDP 46.4 DPJ gain from LDP

+Proportional representation results Party Votes Seats Rank Elected member Constituency Ratio DPJ 1,348,318 (40.6%) 4 1 Hiroko Nakano Hokkaido 6th 99.1% 12 Maya Yamazaki 13 Tatsumaru Yamaoka 14 LDP 805,895 (24.2%) 2 1 Tsutomu Takebe Hokkaido 5th 88.6% 1 Nobutaka Machimura Hokkaido 12th 82.8% Daichi 433,122 (13.0%) 1 1 Muneo Suzuki Komei 354,886 (10.7%) 1 1 Hisashi Inatsu

Tohoku block

+ Single-member constituency results in Tohoku Constituency Previous member Elected member Votes % Margin Runner-up % Status Aomori 1st Yūji Tsushima LDP Hokuto Yokoyama DPJ 101,290 44.5 32,380 Jun Tsushima Ind. 30.3 DPJ gain from LDP Aomori 2nd Akinori Eto LDP Akinori Eto LDP 86,654 54.0 22,320 DPJ 40.1 LDP hold Aomori 3rd Tadamori Ōshima LDP Tadamori Ōshima LDP 90,176 49.5 367 Masayo Tanabu DPJ 49.3 LDP hold Aomori 4th Tarō Kimura LDP Tarō Kimura LDP 112,563 52.6 14,816 DPJ 45.7 LDP hold Iwate 1st Takeshi Shina DPJ Takeshi Shina DPJ 116,425 60.2 65,840 LDP 26.2 DPJ hold Iwate 2nd Shun'ichi Suzuki LDP DPJ 115,080 54.2 20,514 Shun'ichi Suzuki LDP 44.6 DPJ gain from LDP Iwate 3rd Toru Kikawada DPJ Toru Kikawada DPJ 122,746 67.0 65,072 LDP 31.5 DPJ hold Iwate 4th Ichirō Ozawa DPJ Ichirō Ozawa DPJ 133,978 62.6 92,288 LDP 19.5 DPJ hold Miyagi 1st Tōru Doi LDP Kazuko Kōri DPJ 149,980 58.5 62,579 Tōru Doi LDP 34.1 DPJ gain from LDP Miyagi 2nd Kenya Akiba LDP DPJ 158,041 58.8 59,524 Masashi Nakano LDP 36.7 DPJ gain from LDP Miyagi 3rd Akihiro Nishimura LDP DPJ 108,718 55.0 22,821 Akihiro Nishimura LDP 43.5 DPJ gain from LDP Miyagi 4th Shintaro Ito LDP DPJ 119,926 52.9 27,316 Shintaro Ito LDP 40.8 DPJ gain from LDP Miyagi 5th Jun Azumi DPJ Jun Azumi DPJ 89,484 58.6 26,181 LDP 41.4 DPJ hold Miyagi 6th Itsunori Onodera LDP Itsunori Onodera LDP 100,832 63.7 46,699 Tetsuo Kanno SDP 34.2 LDP hold Akita 1st Manabu Terata DPJ Manabu Terata DPJ 93,097 51.9 31,345 Koji Futada LDP 34.4 DPJ hold Akita 2nd Hosei Norota Ind. Ind. 93,951 42.7 1,351 Katsutoshi Kaneda LDP 42.0 Ind. win Akita 3rd Nobuhide Minorikawa LDP DPJ 101,777 37.4 11,202 Nobuhide Minorikawa LDP 33.3 DPJ gain from LDP Yamagata 1st Toshiaki Endo LDP Michihiko Kano DPJ 106,202 46.2 1,291 Toshiaki Endo LDP 45.7 DPJ gain from LDP Yamagata 2nd Takehiko Endo LDP Yōsuke Kondō DPJ 166,287 65.5 85,292 Hironori Suzuki LDP 31.9 DPJ gain from LDP Yamagata 3rd Koichi Kato LDP Koichi Kato LDP 130,502 56.9 50,140 SDP 35.0 LDP hold Fukushima 1st Yoshitami Kameoka LDP DPJ 156,060 50.0 19,534 Yoshitami Kameoka LDP 43.8 DPJ gain from LDP Fukushima 2nd Takumi Nemoto LDP Kazumi Ota DPJ 131,306 53.5 19,710 Takumi Nemoto LDP 45.5 DPJ gain from LDP Fukushima 3rd Kōichirō Genba DPJ Kōichirō Genba DPJ 159,826 73.8 102,968 Masayoshi Yoshino LDP 26.2 DPJ hold Fukushima 4th Kōzō Watanabe DPJ Kōzō Watanabe DPJ 91,695 49.4 42,346 Atsushi Watanabe LDP 26.6 DPJ hold Fukushima 5th Masayoshi Yoshino LDP Izumi Yoshida DPJ 135,692 59.0 46,724 Goji Sakamoto LDP 38.7 DPJ gain from LDP

+Proportional representation results Party Votes Seats Rank Elected member Constituency Ratio DPJ 2,433,836 (45.5%) 7 1 Masayo Tanabu Aomori 3rd 99.6% 1 Aomori 4th 86.8% 1 Aomori 2nd 74.2% 22 23 24 25 LDP 1,491,761 (27.9%) 4 1 Masayoshi Yoshino Fukushima 3rd 35.6% 2 Kenya Akiba 3 Toshiaki Endo Yamagata 1st 98.8% 3 Katsutoshi Kaneda Akita 2nd 98.6% Komei 516,688 (9.7%) 1 1 Yoshihisa Inoue SDP 316,635 (5.9%) 1 1 Yamagata 3rd 61.6% JCP 315,201 (5.9%) 1 1 Chizuko Takahashi

Northern Kanto block

+ Single-member constituency results in Northern Kanto Constituency Previous member Elected member Votes % Margin Runner-up % Status Ibaraki 1st Norihiko Akagi LDP Nobuyuki Fukushima DPJ 151,165 57.1 58,637 Norihiko Akagi LDP 35.0 DPJ gain from LDP Ibaraki 2nd Fukushiro Nukaga LDP DPJ 114,455 49.1 2,781 Fukushiro Nukaga LDP 47.9 DPJ gain from LDP Ibaraki 3rd Yasuhiro Hanashi LDP DPJ 146,983 57.1 43,755 Yasuhiro Hanashi LDP 40.1 DPJ gain from LDP Ibaraki 4th Hiroshi Kajiyama LDP Hiroshi Kajiyama LDP 104,236 50.7 6,980 DPJ 47.3 LDP hold Ibaraki 5th Akihiro Ohata DPJ Akihiro Ohata DPJ 91,855 61.3 37,314 Hideaki Okabe LDP 36.4 DPJ hold Ibaraki 6th Yuya Niwa LDP DPJ 147,865 54.3 33,661 Yuya Niwa LDP 42.0 DPJ gain from LDP Ibaraki 7th Kishirō Nakamura Ind. Kishirō Nakamura Ind. 78,999 37.0 11,668 DPJ 51.3 Ind. hold Tochigi 1st Hajime Funada LDP DPJ 145,702 54.0 34,247 Hajime Funada LDP 41.3 DPJ gain from LDP Tochigi 2nd Mayumi Moriyama LDP Akio Fukuda DPJ 115,046 62.9 49,824 Koya Nishikawa LDP 35.7 DPJ gain from LDP Tochigi 3rd Yoshimi Watanabe YP Yoshimi Watanabe YP 142,482 95.3 135,458 Katsumi Saito HRP 4.7 YP hold Tochigi 4th Tsutomu Sato LDP Kenji Yamaoka DPJ 139,878 51.4 30,591 Tsutomu Sato LDP 40.2 DPJ gain from LDP Tochigi 5th Toshimitsu Motegi LDP Toshimitsu Motegi LDP 101,383 51.7 8,791 DPJ 47.2 LDP hold Gunma 1st Genichiro Sata LDP DPJ 122,711 48.0 12,865 Kōji Omi LDP 43.0 DPJ gain from LDP Gunma 2nd Takashi Sasagawa LDP Takashi Ishizeki DPJ 114,622 51.9 23,660 Takashi Sasagawa LDP 41.2 DPJ gain from LDP Gunma 3rd Yoshio Yatsu LDP DPJ 109,173 54.0 19,737 Yoshio Yatsu LDP 44.2 DPJ gain from LDP Gunma 4th Yasuo Fukuda LDP Yasuo Fukuda LDP 103,852 51.9 11,948 Yukiko Miyake DPJ 45.9 LDP hold Gunma 5th Yūko Obuchi LDP Yūko Obuchi LDP 152,708 71.0 99,660 Tomihisa Tsuchiya SDP 24.7 LDP hold Saitama 1st Koichi Takemasa DPJ Koichi Takemasa DPJ 163,973 60.9 85,985 Zenjiro Kaneko LDP 29.0 DPJ hold Saitama 2nd Yoshitaka Shindō LDP DPJ 140,892 50.0 27,972 Yoshitaka Shindō LDP 40.1 DPJ gain from LDP Saitama 3rd Hiroshi Imai LDP Ritsuo Hosokawa DPJ 167,432 60.0 64,063 Hiroshi Imai LDP 37.1 DPJ gain from LDP Saitama 4th Chuko Hayakawa LDP Hideo Jinpu DPJ 121,137 54.2 46,248 Chuko Hayakawa LDP 33.5 DPJ gain from LDP Saitama 5th Yukio Edano DPJ Yukio Edano DPJ 130,920 59.2 45,781 Hideki Makihara LDP 38.5 DPJ hold Saitama 6th Atsushi Oshima DPJ Atsushi Oshima DPJ 186,993 67.6 102,339 Kazuyuki Nakane LDP 30.6 DPJ hold Saitama 7th Kiyoshi Nakano LDP Yasuko Komiyama DPJ 142,556 54.9 52,929 Kiyoshi Nakano LDP 34.5 DPJ gain from LDP Saitama 8th Masahiko Shibayama LDP DPJ 114,657 49.1 23,281 Masahiko Shibayama LDP 39.1 DPJ gain from LDP Saitama 9th Matsushige Ono LDP DPJ 151,057 56.7 41,139 Taku Otsuka LDP 41.2 DPJ gain from LDP Saitama 10th Taimei Yamaguchi LDP Tetsuhisa Matsuzaki DPJ 123,089 55.1 28,310 Taimei Yamaguchi LDP 42.5 DPJ gain from LDP Saitama 11th Etsuji Arai LDP Ryuji Koizumi Ind. 171,000 70.7 108,966 Etsuji Arai LDP 25.6 Ind. gain from LDP Saitama 12th Toshio Kojima LDP Hiranao Honda DPJ 138,727 57.2 39,471 Toshio Kojima LDP 40.9 DPJ gain from LDP Saitama 13th Shinako Tsuchiya LDP DPJ 121,840 51.5 36,383 Shinako Tsuchiya LDP 36.1 DPJ gain from LDP Saitama 14th Takashi Mitsubayashi LDP DPJ 146,148 57.2 45,674 Takashi Mitsubayashi LDP 39.3 DPJ gain from LDP Saitama 15th Ryosei Tanaka LDP Satoshi Takayama DPJ 120,751 52.1 34,925 Ryosei Tanaka LDP 37.1 DPJ gain from LDP

+Proportional representation results Party Votes Seats Rank Elected member Constituency Ratio DPJ 3,172,577 (42.1%) 10 1 Ibaraki 4th 93.3% 1 Tochigi 5th 91.3% 1 Yukiko Miyake Gunma 4th 88.5% 1 Ibaraki 7th 85.2% 30 31 Akira Ishii 32 33 34 Isao Kuwabara 35 LDP 1,945,933 (25.8%) 6 1 Genichiro Sata 2 Fukushiro Nukaga Ibaraki 2nd 97.6% 2 Keiko Nagaoka Ibaraki 7th 81.2% 2 Yoshitaka Shindō Saitama 2nd 80.1% 2 Masahiko Shibayama Saitama 8th 79.7% 2 Tsutomu Sato Tochigi 4th 78.1% Komei 855,134 (11.4%) 2 1 Keiichi Ishii 2 Otohiko Endō YP 597,025 (7.9%) 1 2 Koichi Yamauchi JCP 471,138 (6.3%) 1 1 Tetsuya Shiokawa

Southern Kanto block