List of districts of the House of Representatives of Japan

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As of 2005, the House of Representatives of Japan is elected from a combination of multi-member districts and single-member districts. Currently, 180 members are elected from 11 multi-member districts by a party-list system of proportional representation, and 295 members are elected from single-member districts, for a total of 475. 238 seats are therefore required for a majority.

Each Block (multi-member) district spans one or more Prefectures, and each Prefecture spans one or more single-member district, so the districts are organized by Block district and then by Prefecture. In general, the Block districts correspond loosely to the major Regions of Japan, with some of the larger regions subdivided.

Up to the 1993 general election all members of the House of Representatives were elected in multi-member constituencies by single non-transferable vote. In 1994, parliament passed an electoral reform bill that introduced the current system of parallel voting in single-member constituencies and proportional voting blocks.[1] The original draft bill in 1993 by the anti-LDP coalition of Prime Minister Morihiro Hosokawa included proportional party list voting on a national scale, an equal number of proportional and district seats (250 each) and the possibility of split voting. But the bill was stalled in the House of Councillors.[2] After the Liberal Democratic Party (LDP) had returned to power later that year, it was changed to include proportional voting in regional blocks only, the number of proportional seats was reduced, but the possibility to cast two separate votes was kept in the bill. The electoral reform law was finally passed in 1994. It was first applied in the 1996 general election.

Districts of the House of Representatives

Hokkaidō[edit]

The Block constituency for Hokkaidō (比例北海道ブロック) elects 8 members proportionally. It comprises Hokkaidō Prefecture, which is divided into 12 single-member districts.

Hokkaidō Prefecture[edit]

District 1
Consists of the wards of Chūō-ku, Minami-ku, and Nishi-ku in Sapporo.
District 2
Consists of the wards of Higashi-ku and Kita-ku in Sapporo.
District 3
Consists of the wards of Shiroishi-ku, Toyohira-ku, and Kiyota-ku in Sapporo.
District 4
Consists of the ward of Teine-ku in Sapporo, along with Shiribeshi Subprefecture, including Otaru city.
District 5
Consists of the ward of Atsubetsu-ku in Sapporo, along with the parts of Ishikari Subprefecture outside Sapporo.
District 6[changed 1]
Consists of Kamikawa Subprefecture, including Asahikawa city.
District 7[changed 1]
Consists of Kushiro Subprefecture and Nemuro Subprefecture.
District 8
Consists of Hiyama Subprefecture and Oshima Subprefecture, including Hakodate city.
District 9
Consists of Hidaka Subprefecture and Iburi Subprefecture.
District 10[changed 1]
Consists of Sorachi Subprefecture and Rumoi Subprefecture.
District 11
Consists of Tokachi Subprefecture.
District 12[changed 1]
Consists of Abashiri Subprefecture and Sōya Subprefecture.
(District 13)[changed 2]
Renamed as the seven district in the 2002 reaportionment.

Tohoku[edit]

The Block constituency for Tohoku (比例東北ブロック) elects 14 members proportionally.

Akita Prefecture[edit]

District 1[changed 1]
Consists of the city of Akita.
District 2[changed 1]
Consists of the cities of Katagami, Kazuno, Kitaakita, Noshiro, Ōdate, and Oga, as well as the Kazuno, Kitaakita, Minamiakita, and Yamamoto districts.
District 3
Consists of the cities of Daisen, Yokote, Yurihonjō, and Yuzawa, as well as the Hiraka, Ogachi, Senboku, and Yuri districts.

Aomori Prefecture[edit]

District 1
Consists of the cities of Aomori (except for the former Namioka) and Goshogawara, as well as the Higashitsugaru and Kitatsugaru districts.
District 2[changed 3]
Consists of the cities of Misawa, Mutsu and Towada, as well as the Kamikita and Shimokita districts.
District 3[changed 3]
Consists of the city of Hachinohe as well as the adjoining Sannohe district.
District 4
Consists of the cities of Hirosaki, Kuroishi, and Tsugaru, as well as the Minamitsugaru, Nakatsugaru, and Nishitsugaru districts. It also includes the former Namioka, which was annexed by Aomori city.

Fukushima Prefecture[edit]

District 1
Consists of the cities of Fukushima, Haramachi and Soma, as well as the Date and Sōma districts.
District 2
Consists of the cities of Kōriyama and Nihonmatsu, as well as the Adachi district.
District 3
Consists of the cities of Shirakawa, Sukagawa and Tamura, as well as the Higashishirakawa, Ishikawa, Iwase, Nishishirakawa, and Tamura districts.
District 4
Consists of the cities of Aizuwakamatsu and Kitakata, as well as the Kawanuma, Minamiaizu, Ōnuma, and Yama districts.
District 5
Consists of the city of Iwaki, as well as the Futaba district.

Iwate Prefecture[edit]

District 1
Consists of the city of Morioka, as well as the Shiwa district.
District 2[changed 3]
Consists of the cities of Kuji, Miyako, and Ninohe, as well as the Iwate, Kunohe, Ninohe, and Shimohei districts.
District 3[changed 3]
Consists of the cities of Ichinoseki, Kamaishi, Ōfunato, Rikuzentakata, and Tōno, as well as the Higashiiawai, Kamihei, Kesen, and Nishiiwai districts.
District 4
Consists of the cities of Esashi, Hanamaki, Kitakami, and Mizusawa, as well as the Hienuki, Isawa, and Waga districts.

Miyagi Prefecture[edit]

District 1
Consists of the wards of Aoba-ku and Taihaku-ku in the city of Sendai.
District 2
Consists of the wards of Izumi-ku, Miyagino-ku and Wakabayashi-ku in the city of Sendai.
District 3
Consists of the cities of Iwanuma, Kakuda, Natori, and Shiroishi, as well as the Igu, Katta, Shibata, and Watari districts.
District 4[changed 3]
Consists of the cities of Furukawa, Shiogama, and Tagajō, as well as the Kami, Kurokawa, Miyagi, and Shida districts.
District 5[changed 3]
Consists of the city of Ishinomaki, as well as the Oshika, and Tōda districts.
District 6[changed 3]
Consists of the cities of Kesennuma, Kurihara, and Tome, as well as the Motoyoshi, and Tamatsukuri districts.

Yamagata Prefecture[edit]

District 1[changed 1]
Consists of the cities of Kaminoyama, Tendō, and Yamagata, as well as the Higashimurayama district.
District 2[changed 1]
Consists of the cities of Higashine, Murayama, Nagai, Nan'yō, Obanazawa, Sagae, and Yonezawa, as well as the Higashiokitama, Kitamurayama, Nishimurayama, and Nishiokitama districts.
District 3[changed 1]
Consists of the cities of Sakata, Shinjō, and Tsuruoka, as well as the Akumi, Higashitagawa, Mogami, and Nishitagawa districts.
(District 4)
Defunct[changed 2]

Kitakanto[edit]

The Block constituency for Kitakanto (北関東) elects 20 members proportionally. It includes the northern part of the Kantō region.

Gunma Prefecture[edit]

District 1
Consists of the cities of Maebashi and Numata, as well as the Seta and Tone districts. Also includes the former towns of Kurohone and Niisato, now annexed into Kiryū.
District 2
Consists of the cities of Isesaki and Kiryū (except as above), as well as the Nitta, Sawa, and Yamada districts. Also includes the former Yabuzukahon, now annexed into Ōta.
District 3
Consists of the cities of Ōta (except as above) and Tatebayashi, as well as the Oura district.
District 4
Consists of the cities of Takasaki and Fujioka, as well as the Tano district.
District 5
Consists of the cities of Annaka, Shibukawa, and Tomioka, as well as the Agatsuma, Gunma, Kanra, Kitagunma, and Usui districts.

Ibaraki Prefecture[edit]

District 1
Consists of the cities of Chikusei, Kasama, Mito, and Shimotsua, the Makabe district, and the towns of Shirosato and Iwase.
District 2
Consists of the cities of Kashima and Itako, as well as the districts of Higashiibaraki (except Shirosato), Kashima, Namegata, and Nishiibaraki (except Iwase).
District 3
Consists of the cities of Inashiki, Moriya, Ryūgasaki, Toride, and Ushiku, as well as the Inashiki and Kitasouma districts.
District 4[changed 3]
Consists of the cities of Hitachinaka, Hitachiōmiya, Hitachiōta, and Naka, as well as the Kuji and Naka districts.
District 5[changed 3]
Consists of the cities of Hitachi, Kitaibaraki, and Takahagi.
District 6
Consists of the cities of Ishioka, Kasumigaura, Tsuchiura, and Tsukuba, as well as the Niihari and Tsukuba districts.
District 7
Consists of the cities of Bandō, Koga, Mitsukaido, and Yuki, as well as the Sashima and Yūki districts.

Saitama Prefecture[edit]

District 1[changed 1]
Consists of the wards of Iwatsuki-ku, Midori-ku, Minuma-ku, and Urawa-ku in Saitama city.
District 2
Consists of the cities of Hatogaya and Kawaguchi.
District 3
Consists of the cities of Koshigaya and Sōka.
District 4[changed 1]
Consists of the cities of Asaka, Niiza, Shiki, and Wakō.
District 5[changed 1]
Consists of the wards of Chūō-ku, Kita-ku, Nishi-ku, and Ōmiya-ku in Saitama city.
District 6
Consists of the cities of Ageo, Kitamoto, Kōnosu, and Okegawa, as well as the Kitaadachi district.
District 7
Consists of the cities of Fujimi, Kamifukuoka, and Kawagoe.
District 8
Consists of Tokorozawa city and the towns of Miyoshi and Ōi in the Iruma district.
District 9
Consists of the cities of Hannō, Hidaka, Iruma, and Sayama, as well as the towns of Moroyama and Ogose in the Iruma district.
District 10
Consists of the cities of Higashimatsuyama, Sakado, and Tsurugashima, as well as the Hiki district.
District 11
Consists of the cities of Chichibu, Fukaya, and Honjō, as well as the Chichibu and Kodama districts. It also contains the towns of Hanazono, Kawamoto, Kōnan, Okabe and Yorii in the Ōsato district.
District 12
Consists of the cities of Gyōda, Hanyū, Kazo, and Kumagaya, as well as the Kitasaitama district. It also contains the towns of Menuma and Ōsato in the Ōsato district.
District 13[changed 1]
Consists of the cities of Hasuda, Kasukabe, and Kuki, as well as the Minamisaitama district.
District 14
Consists of the cities of Misato, Satte, Yashio, and Yoshikawa, as well as the Kitakatsushika district.
District 15[changed 4]
Consists of the cities of Toda and Warabi, as well as the wards of Minami-ku, and Sakura-ku in Saitama city.

Tochigi Prefecture[edit]

District 1
Consists of the city of Utsunomiya and the towns of Kaminokawa and Minamikawachi in the Kawachi district.
District 2
Consists of the cities of Imaichi, Kanuma, Nikkō, and Sakura, as well as the districts of Kamitsuga and Shioya and the towns of Kamikawachi and Kawachi in the Kawachi district.
District 3
Consists of the cities of Nasushiobara, Ōtawara, and Yaita, as well as the Nasu district.
District 4
Consists of the cities of Mooka and Oyama, as well as the Haga and Shimotsuga districts.
District 5
Consists of the cities of Ashikaga, Sano, and Tochigi.

Minamikanto[edit]

The Block constituency for southern Kanto (比例南関東ブロック, hirei minami-Kantō burokku) elects 22 members proportionally. It includes the southern part of the Kantō region.

Chiba Prefecture[edit]

District 1
Consists of the wards of Chūō-ku, Inage-ku, and Mihama-ku in Chiba city.
District 2
Consists of the Hanamigawa-ku ward in Chiba city and the cities of Narashino and Yachiyo.
District 3[changed 1]
Consists of the Midori-ku ward in Chiba city and the city of Ichihara.
District 4[changed 3]
Consists of the city of Funabashi.
District 5[changed 1]
Consists of the city of Urayasu, and portions of the city of Ichikawa.[3]
District 6[changed 1]
Consists of the remainder of Ichikawa from District 5, and the parts of Matsudo administered from the central office and the Eastern, Mutsumi, Tokiwadaira, and Yagiri branch offices.
District 7
Consists of the remainder of Matsudo from District 6, and the cities of Nagareyama and Noda.
District 8[changed 1]
Consists of the cities of Kashiwa (except for the annexed Shōnan town) and Abiko.
District 9[changed 1]
Consists of the Wakaba-ku ward in Chiba city and the cities of Sakura, Yachimata, and Yotsukaidō.
District 10
Consists of the cities of Asahi, Chōshi, Narita, Sawara, and Yōkaichiba, as well as the Katori and Sōsa districts.
District 11
Consists of the cities of Katsuura, Mobara, Tōgane, as well as the Chōsei, Isumi, and Sanbu districts.
District 12
Consists of the cities of Futtsu, Kamogawa, Kimitsu, Kisarazu, Sodegaura, and Tateyama, as well as the Awa district.
District 13[changed 4][changed 3]
Consists of the cities of Inzai, Kamagaya, Shiroi, and Tomisato, as well as the Iba district and the part of Kashiwa formerly comprising the annexed Shōnan town.

Kanagawa Prefecture[edit]

District 1
Consists of the wards of Naka-ku, Isogo-ku, and Kanazawa-ku in Yokohama city.
District 2
Consists of the wards of Kōnan-ku, Minami-ku, and Nishi-ku in Yokohama city.
District 3
Consists of the wards of Kanagawa-ku and Tsurumi-ku in Yokohama city.
District 4
Consists of Sakae-ku ward in Yokohama, the cities of Kamakura and Zushi, and the Miura district.
District 5
Consists of the wards of Izumi-ku, Seya-ku, and Totsuka-ku in Yokohama city.
District 6
Consists of the wards of Asahi-ku and Hodogaya-ku in Yokohama city.
District 7[changed 1]
Consists of the wards of Kōhoku-ku and Tsuzuki-ku in Yokohama city.
District 8[changed 1]
Consists of the wards of Midori-ku and Aoba-ku in Yokohama city.
District 9[changed 1]
Consists of the wards of Asao-ku and Tama-ku in Kawasaki city.
District 10[changed 3]
Consists of the wards of Kawasaki-ku, Nakahara-ku, and Saiwai-ku in Kawasaki city.
District 11
Consists of the cities of Miura and Yokosuka.
District 12
Consists of Fujisawa city and the Koza district.
District 13
Consists of the cities of Ayase, Ebina, Yamato, and Zama.
District 14[changed 1]
Consists of the parts of Sagamihara city administered from the central office and the branch offices of Hashimoto, Kamimizo, Onokita, Onominami, Ononaka, Ozawa, Tana, and Tobu.
District 15
Consists of the cities of Chigasaki and Hiratsuka.
District 16[changed 1]
Consists of Atsugi and Isehara cities, the Aikō and Tsukui districts, and the parts of Sagamihara not included in District 14.
District 17
Consists of Hadano, Minamiashigara, and Odawara cities, as well as the Ashigarakami and Ashigarashimo districts.
District 18[changed 4][changed 3]
Consists of the wards of Takatsu-ku and Miyamae-ku in Kawasaki city.

Yamanashi Prefecture[edit]

District 1[changed 3]
Consists of the cities of Enzan, Kōfu, and Yamanashi, as well as the Higashiyamanashi district and the part of Fuefuki formerly comprising the town of Kasugai.
District 2[changed 3]
Consists of the cities of Fujiyoshida, Ōtsuki, Tsuru, and Uenohara, as well as the Higashiyatsushiro, Kitatsuru, Minamitsuru, and Nishiyatsushiro districts and the parts of Fuefuki not in district 1.
District 3[changed 5]
Consists of the cities of Hokuto, Kai, Minami-arupusu, and Nirasaki, as well as the Kitakoma, Minamikoma, and Nakakoma districts.

Tokyo[edit]

The Block constituency for Tokyo (比例東京ブロック) elects 17 members proportionally.

Tokyo Metropolis[edit]

District 1
Consists of the wards of Chiyoda, Minato and Shinjuku.
District 2
Consists of the wards of Chūō, Bunkyō and Taitō.
District 3
Consists of the ward of Shinagawa, parts of the ward of Ōta as well as the Izu Islands.
District 4
Consists of the parts of the ward of Ōta not included in District 3.
District 5[changed 3]
Consists of the ward of Meguro, and parts of the ward of Setagaya.
District 6[changed 3]
Consists of the parts of the ward of Setagaya not included in District 5.
District 7
Consists of the wards of Shibuya and Nakano.
District 8
Consists of the ward of Suginami.
District 9
Consists of the parts of the ward of Nerima not included in District 10.
District 10
Consists of the ward of Toshima as well as parts of the ward of Nerima.
District 11
Consists of the ward of Itabashi.
District 12
Consists of the ward of Kita as well as parts of the ward of Adachi.
District 13
Consists of the parts of the ward of Adachi not included in District 12.
District 14
Consists of the wards of Sumida and Arakawa.
District 15
Consists of the ward of Kōtō.
District 16[changed 3]
Consists of the parts of the ward of Edogawa not included in District 17.
District 17[changed 3]
Consists of the ward of Katsushika as well as parts of the ward of Edogawa.
District 18[changed 1]
Consists of the cities of Musashino, Fuchū and Koganei.
District 19
Consists of the cities of Kodaira, Kokubunji, Kunitachi and Nishitōkyō.
District 20
Consists of the cities of Higashimurayama, Higashiyamato, Kiyose, Higashikurume and Musashimurayama.
District 21
Consists of the cities of Tachikawa, Akishima and Hino.
District 22[changed 1]
Consists of the cities of Mitaka, Chōfu, Komae and Inagi.
District 23
Consists of the cities of Machida and Tama.
District 24
Consists of the city of Hachiōji.
District 25
Consists of the cities of Ōme, Fussa, Hamura, Akiruno as well as the Nishitama District.

Hokurikushinetsu[edit]

The Block constituency for Hokurikushinetsu (北陸信越) elects 11 members proportionally. It corresponds to the Hokuriku region and the Shin'etsu region.

Fukui Prefecture[edit]

District 1[changed 3]
Consists of the city of Fukui and the Asuwa and Yoshida districts.
District 2[changed 3]
Consists of the cities of Awara, Katsuyama, Ono, and Sabae as well as the Imadate, Ōno, and Sakai districts.
District 3[changed 5]
Consists of the cities of Obama, Takefu, and Tsuruga as well as the Mikata, Minamikaminaka, Nanjō, Nyū, Ōi, and Onyu districts.

Ishikawa Prefecture[edit]

District 1
Consists of the city of Kanazawa.
District 2
Consists of the cities of Hakusan, Kaga, Komatsu, and Nomi, as well as the Enuma, Ishikawa, and Nomi districts.
District 3
Consists of the cities of Hakui, Kahoku, Nanao, Suzu, and Wajima, as well as the Hakui, Hōsu, Kahoku, and Kashima districts.

Niigata Prefecture[edit]

District 1[changed 1]
Consists of Niigata city, except for the recently annexed areas detailed under districts 2, 3, and 4.
District 2[changed 1]
Consists of the cities of Kashiwazaki, Sado, and Tsubame as well as the Kariwa, Nishikanbara, and Santō districts. Additionally includes the parts of Niigata city that were formerly the town of Nishikawa and the villages of Ajikata, Iwamuro, Katahigashi, Nakanokuchi and Tsukigata in Nishikanbara District.
District 3
Consists of the cities of Agano, Gosen, Murakami, and Shibata as well as the Higashikanbara, Iwafune, Kitakanbara, and Nakakanbara districts. Additionally includes the part of Niigata city that formerly comprised the city of Toyosaka.
District 4
Consists of the cities of Kamo, Mitsuke, Sanjō, and Tochio as well as the Minamikanbara district. Additionally includes the part of Niigata city that formerly comprised the cities of Niitsu and Shirone and the towns of Kameda, Kosudo and Yokogoshi in the Nakakanbara District.
District 5
Consists of the cities of Minamiuonuma, Nagaoka, Ojiya, and Uonuma as well as the Kitauonuma and Minamiuonuma districts.
District 6
Consists of the cities of Itoigawa, Jōetsu, Myoko, and Tōkamachi as well as the Nakauonuma district.

Nagano Prefecture[edit]

District 1
Consists of the cities of Iiyama, Nagano (except for the recently annexed areas in District 2), Nakano, and Suzaka, as well as the Kamitakai, Shimominochi, and Shimotakai districts.
District 2
Consists of the cities of Matsumoto and Ōmachi, as well as the Higashichikuma, Kamiminochi, Kitaazumi, and Minamiazumi districts. Also includes several areas annexed into Nagano city, specifically the Sarashina district as well as the former towns of Kinasa, Togakushi, and Toyono previously in the Kamiminochi district.
District 3
Consists of the cities of Chikuma, Komoro, Saku, Tōmi and Ueda, as well as the Chiisagata, Hanishina, Kitasaku, and Minamisaku districts.
District 4
Consists of the cities of Chino, Okaya, Shiojiri and Suwa, as well as the Kiso, and Suwa districts.
District 5
Consists of the cities of Iida, Ina and Komagane, as well as the Kamiina, and Shimoina districts.

Toyama Prefecture[edit]

District 1
Consists of the city of Toyama, except for the annexed areas included in district 2.
District 2
Consists of the cities of Kurobe, Namerikawa, and Uozu, as well as the Nakaniikawa and Shimoniikawa districts. Also contains the parts of Toyama city that formerly comprised the Kaminiikawa and Nei districts.
District 3
Consists of the cities of Himi, Nanto, Oyabe, Shinminato, Takaoka, and Tonami, as well as the Imizu and Nishitonami districts.

Tokai[edit]

The Block constituency for Tokai (東海) elects 21 members proportionally.

Aichi Prefecture[edit]

District 1
Consists of the wards of Higashi, Kita, Nishi, and Naka in the city of Nagoya.
District 2
Consists of the wards of Chikusa, Moriyama and Meitō in the city of Nagoya.
District 3
Consists of the wards of Shōwa, Midori and Tenpaku in the city of Nagoya.
District 4[changed 1]
Consists of the wards of Mizuho, Atsuta, Minato and Minami in the city of Nagoya.
District 5[changed 1]
Consists of the wards of Nakamura and Nakagawa in the city of Nagoya, the cities of Kiyosu and Kitanagoya, as well as the district of Nishikasugai.
District 6[changed 1]
Consists of the cities of Kasugai, Inuyama and Komaki.
District 7
Consists of the cities of Seto, Ōbu, Owariasahi, Toyoake, Nisshin as well as the district of Aichi.
District 8
Consists of the cities of Handa, Tokoname, Tōkai and Chita, as well as the district of Chita.
District 9
Consists of the cities of Tsushima, Inazawa, Aisai, Yatomi and Ichinomiya (region of the former city of Bisai), as well as the district of Ama.
District 10[changed 1]
Consists of the part of Ichinomiya not included in District 9, the cities of Kōnan and Iwakura, as well as the district of Niwa.
District 11
Consists of the city of Toyota (except for the region of the former town of Inabu), as well as the district of Nishikamo.
District 12
Consists of the cities of Okazaki and Nishio, as well as the districts of Hazu and Nukata.
District 13
Consists of the cities of Hekinan, Kariya, Anjō, Chiryū and Takahama.
District 14
Consists of the cities of Toyokawa, Gamagōri, Shinshiro, Toyota (region of the former town of Inabu), as well as the districts of Kitashitara and Hoi.
District 15
Consists of the cities of Toyohashi and Tahara.

Gifu Prefecture[edit]

District 1
Consists of the city of Gifu (except for the region of the former town of Yanaizu).
District 2
Consists of the cities of Ōgaki and Kaizu, as well as the districts of Yōrō, Fuwa, Anpachi and Ibi.
District 3
Consists of the cities of Seki, Mino, Hashima, Kakamigahara, Yamagata, Mizuho, Motosu and Gifu (region of the former town of Yanaizu), as well as the districts of Hashima and Motosu.
District 4
Consists of the cities of Takayama, Minokamo, Kani, Hida, Gujō and Gero, as well as the districts of Kamo, Kani and Ōno.
District 5
Consists of the cities of Tajimi, Nakatsugawa, Mizunami, Ena and Toki.

Mie Prefecture[edit]

District 1
Consists of the cities of Iga and Nabari, and the parts of the city of Tsu not included in District 4.
District 2
Consists of the cities of Suzuka, Kameyama and parts of the city of Yokkaichi.
District 3
Consists of the cities of Kuwana, Inabe and Yokkaichi (parts not included in District 2), as well as the districts of Kuwana, Inabe and Mie.
District 4
Consists of the cities of Matsusaka and the city of Mie (region of the former city of Hisai and the former district of Ichishi), as well as the district of Taki.
District 5
Consists of the cities of Ise, Owase, Toba, Shima and Kumano, as well as the districts of Watarai, Kitamuro and Minamimuro.

Shizuoka Prefecture[edit]

District 1
Consists of the wards of Aoi and Suruga in the city of Shizuoka.
District 2
Consists of the cities of Shimada, Yaizu, Fujieda, Makinohara and Omaezaki (part not included in District 3), as well as the districts of Shida and Haibara.
District 3
Consists of the ward of Tenryū (region of the former town of Haruno) in the city of Hamamatsu, the cities of Iwata, Fukuroi, Kakegawa, Kikugawa and Omaezaki (region of the former town of Hamaoka), as well as the district of Shūchi.
District 4[changed 1]
Consists of the ward of Shimizu in the city of Shizuoka, the city of Fujinomiya, as well as the districts of Fuji and Ihara.
District 5[changed 1]
Consists of the cities of Mishima, Fuji, Gotenba, Susono and Izunokuni (region of the former town of Izunagaoka), as well as the district of Tagata and the town of Oyama.
District 6[changed 1]
Consists of the cities of Numazu, Atami, Itō, Shimoda, Izu and Izunokuni (parts not included in District 5), as well as the district of Kamo and the towns of Shimizu and Nagaizumi.
District 7[changed 1]
Consists of the wards of Naka (region of the former towns of Nishioka and Hanagawa), Nishi, Minami (region of the former towns of Zōra, Takazuka, Higashiwakabayashi and Wakabayashi), Kita, Hamakita and Tenryū (parts not included in District 3) in the city of Hamamatsu, as well as the city of Kosai and the district of Hamana.
District 8
Consists of the wards of Naka (parts not included in District 7), Higashi and Minami (parts not included in District 7) in the city of Hamamatsu.
(District 9)[changed 2]
Defunct

Kinki[edit]

The Block constituency for Kinki (近畿) elects 29 members proportionally.

Hyōgo Prefecture[edit]

District 1
Consists of the wards of Chūō-ku, Higashinada-ku, and Nada-ku in Kobe.
District 2
Consists of the wards of Hyōgo-ku, Kita-ku, and Nagata-ku in Kobe.
District 3
Consists of the wards of Suma-ku and Tarumi-ku in Kobe.
District 4
Consists of Nishi-ku ward in Kobe, the cities of Kasai, Miki, Nishiwaki, and Ono, and the Katō, Mino and Taka districts.
District 5
Consists of the cities of Asago, Sanda, Sasayama, Tamba, Toyooka, and Yabu, and the Kawabe and Mikata districts.
District 6
Consists of the cities of Itami, Kawanishi and Takarazuka.
District 7
Consists of the cities of Ashiya and Nishinomiya.
District 8
Consists of the city of Amagasaki.
District 9
Consists of the cities of Akashi, Awaji, Minamiawaji, and Sumoto, as well as the Tsuna district.
District 10
Consists of the cities of Kakogawa and Takasago, as well as the Kako district.
District 11
Consists of the city of Himeji.
District 12
Consists of the cities of Aioi, Ako, Shiso, and Tatsuno, as well as the Akō, Ibo, Kanzaki, Sayō, Shikama and Shisō districts.

Kyoto Prefecture[edit]

District 1
Consists of the wards of Kamigyō-ku, Kita-ku, Nakagyō-ku, Minami-ku, and Shimogyō-ku in Kyoto.
District 2
Consists of the wards of Higashiyama-ku, Sakyō-ku, and Yamashina-ku in Kyoto.
District 3
Consists of the ward of Fushimi-ku in Kyoto, the cities of Mukō and Nagaokakyō, and the Otokuni district.
District 4
Consists of the wards of Nishikyō-ku and Ukyō-ku in Kyoto, the city of Kameoka, and the Funai and Kitakuwada districts.
District 5
Consists of the cities of Ayabe, Fukuchiyama, Kyōtango, Maizuru, and Miyazu, as well as the Amata, Kasa, and Yosa districts.
District 6
Consists of the cities of Joyo, Kyōtanabe, Uji, and Yawata, as well as the Kuse, Sōraku, and Tsuzuki districts.

Nara Prefecture[edit]

District 1
Consists of Nara city, except for the recently annexed Tsuge village.
District 2
Consists of the cities of Ikoma, Tenri, and Yamatokōriyama, as well as the Yamabe and Ikoma districts. Also includes the part of Nara city that was formerly Tsuge village in the Yamabe district.
District 3
Consists of the cities of Gose, Kashiba, Katsuragi, and Yamatotakada, as well as the Kitakatsuragi and Shiki districts.
District 4
Consists of the cities of Gojō, Kashihara, and Sakurai, as well as the Takaichi, Uda, and Yoshino districts.

Osaka Prefecture[edit]

District 1
Consists of the wards of Chūō-ku, Ikuno-ku, Minato-ku, Naniwa-ku, Nishi-ku, and Tennōji-ku in Osaka city.
District 2
Consists of the wards of Abeno-ku, Higashisumiyoshi-ku, and Hirano-ku in Osaka city.
District 3
Consists of the wards of Nishinari-ku, Suminoe-ku, Sumiyosho-ku, and Taisho-ku in Osaka city.
District 4
Consists of the wards of Fukushima-ku, Higashinari-ku, Joto-ku, Kita-ku, and Miyakojima-ku in Osaka city.
District 5
Consists of the wards of Higashiyodogawa-ku, Konohana-ku, Nishiyodogawa-ku, and Yodogawa-ku in Osaka city.
District 6
Consists of the wards of Asahi-ku and Tsurumi-ku in Osaka city, as well as the cities of Kadoma and Moriguchi.
District 7
Consists of the cities of Settsu and Suita.
District 8
Consists of the city of Toyonaka.
District 9
Consists of the cities of Ibaraki, Ikeda, and Minoo, as well as the Toyono district.
District 10
Consists of the city of Takatsuki as well as the Mishima district.
District 11
Consists of the cities of Hirakata and Katano.
District 12
Consists of the cities of Daitō, Neyagawa, and Shijōnawate.
District 13
Consists of the city of Higashiōsaka.
District 14
Consists of the cities of Fujiidera, Habikino, Kashiwara, and Yao.
District 15
Consists of the cities of Kawachinagano, Matsubara, Ōsakasayama, and Tondabayashi, as well as the Minamikawachi district. Also contains the Mihara sector of Sakai city.
District 16
Consists of the Higashi, Kita, and Sakai sectors of Sakai city.
District 17
Consists of the areas of Sakai city not in districts 15 or 16.
District 18
Consists of the cities of Izumi, Izumiōtsu, Kishiwada, and Takaishi, as well as the Senboku district.
District 19
Consists of the cities of Hannan, Izumisano, Kaizuka, and Sennan, as well as the Sennan district.

Shiga Prefecture[edit]

District 1
Consists of the cities of Ōtsu and Takashima as well as the Shiga district.
District 2[changed 1]
Consists of the cities of Hikone, Maibara and Nagahama as well as the Echi, Higashiazai, Ika, Inukami, and Sakata districts. Also includes the part of Higashiōmi that formerly comprised Aitō and Kotō in the Echi district.
District 3[changed 1]
Consists of the cities of Kusatsu, Moriyama, Rittō and Yasu.
District 4[changed 4]
Consists of the cities of Higashiōmi (except the parts listed in district 2), Kōka, Konan and Ōmihachiman as well as the Gamō and Kanzaki districts.

Wakayama Prefecture[edit]

District 1
Consists of Wakayama city.
District 2[changed 3]
Consists of Hashimoto and Kainan cities, as well as the Ito, Kaisō, and Naga districts.
District 3[changed 3]
Consists of Arida, Gobō, Shingū, and Tanabe cities, as well as the Arida, Hidaka, Higashimuro, and Nishimuro districts.

Chugoku[edit]

The Block constituency for Chugoku (中国) elects 11 members proportionally.

Hiroshima Prefecture[edit]

District 1
Consists of the Higashi-ku, Minami-ku, and Naka-ku wards in Hiroshima city.
District 2
Consists of the Nishi-ku and Saeki-ku wards in Hiroshima city, the cities of Etajima (except the original town of Etajima), Hatsukaichi, and Ōtake, and the Saeki district.
District 3
Consists of the Asakita-ku and Asaminami-ku wards in Hiroshima city, the city of Akitakata, and the Yamagata district.
District 4
Consists of the Aki-ku ward in Hiroshima city and the Aki district. Also, it includes parts of the cities of Kure (the former towns of Kamagari, Kurahashi, Ondo, and Shimokamagari), Higashihiroshima (all except for the former Akitsu town), Mihara (the former Daiwa town), and Etajima (the original Etajima town).
District 5
Consists of Takehara city and the Toyota district. Also includes Kure (except as in District 4), the part of Higashihiroshima comprising the former Akitsu town, and the part of Mihara comprising the former Hongō town.
District 6
Consists of the cities of Fuchū, Innoshima, Miyoshi, Onomichi, and Shōbara, as well as the Jinseki and Sera districts. Also includes the part of Mihara comprising the former Kui town.
District 7
Consists of the city of Fukuyama and the Fukayasu district.

Okayama Prefecture[edit]

District 1
Consists of parts of the city of Okayama, as well as the town of Kibichūō (region of the former town of Kamogawa).
District 2
Consists of the cities of Okayama (parts not included in Districts 1 and 3), Tamano and Setouchi.
District 3
Consists of the cities of Tsuyama, Bizen, Akaiwa, Maniwa (part not included in District 5), Mimasaka and Okayama (region of the former town of Seto), as well as the districts of Wake, Maniwa, Tomata, Katsuta, Aida and Kume.
District 4
Consists of the city of Kurashiki (parts not included in District 5) and the district of Tsukubo.
District 5
Consists of the cities of Kasaoka, Ibara, Sōja, Takahashi, Niimi, Maniwa (region of the former town of Hokubō), Kurashiki (region of the former towns of Funao and Mabi) and Asakuchi, as well as the districts of Asakuchi, Oda and the town of Kibichūō (part not included in District 1).

Shimane Prefecture[edit]

District 1[changed 1]
Consists of the cities of Matsue and Yasugi, the Nita, Oki and Yatsuka districts, the part of Unnan city formerly comprising Ohara, and the part of Izumo city formerly comprising Hirata.
District 2[changed 1]
Consists of the cities of Gōtsu, Hamada, Izumo (excluding former Hirata), Masuda, and Ōda, the Hikawa, Iishi, Kanoashi, Mino, Naka, Nima, and Ōchi districts, and the part of Unnan city formerly comprising Kakeya town, Mitoya town, and Yoshida village in the Iishi district.
(District 3)[changed 2]
Defunct

Tottori Prefecture[edit]

District 1[changed 3]
Consists of the cities of Kurayoshi and Tottori, the Iwami, Ketaka, and Yazu districts, and the towns of Misasa and Yurihama in the Tōhaku district.
District 2[changed 3]
Consists of the cities of Sakaiminato and Yonago, the Hino and Saihaku districts, and the towns of Daiei, Hōjō, and Kotoura in the Tōhaku district.

Yamaguchi Prefecture[edit]

District 1
Consists of the cities of Hōfu and Yamaguchi city (except for the annexed Atō town), as well as the part of Shūnan city formerly comprising Tokuyama, Shinnanyo, and Kano town.
District 2
Consists of the cities of Hikari, Iwakuni, Kudamatsu, and Yanai and the districts of Kuga, Kumage, and Ōshima, as well as the part of Shūnan city formerly comprising Kumage town.
District 3
Consists of the cities of Hagi, Mine, Sanyo-Onoda, and Ube and the Abu districts, as well as the part of Yamaguchi city formerly comprising Atō town.
District 4
Consists of the cities of Nagato and Shimonoseki.

Shikoku[edit]

The Block constituency for Shikoku (比例四国ブロック) elects 6 members proportionally.

Ehime Prefecture[edit]

District 1
Consists of the city of Matsuyama, except for the recently annexed regions comprising the former Hōjō city and Nakajima town.
District 2[changed 3]
Consists of the cities of Imabari, Iyo, and Tōon, and the districts of Iyo, Kamiukena, Ochi. Also includes the parts of Matsuyama comprising the former Hōjō city and Nakajima town, and the part of Uchiko comprising the former Oda town.
District 3[changed 3]
Consists of the cities of Niihama, Saijō, and Shikokuchūō.
District 4
Consists of the cities of Ōzu, Seiyo, Uwajima, and Yawatahama, as well as the districts of Kita (except for part of Uchiko in District 2), Kitauwa, Minamiuwa, and Nishiuwa.

Kagawa Prefecture[edit]

District 1
Consists of Takamatsu city, the Shozu district, and Naoshima town in the Kagawa district.
District 2
Consists of the cities of Higashikagawa, Sakaide, and Sanuki, as well as the Ayauta, Kagawa (except Naoshima), and Kita districts.
District 3
Consists of the cities of Kan'onji, Marugame, and Zentsuji, as well as the Mitoyo and Nakatado districts.

Kōchi Prefecture[edit]

District 1[changed 1][changed 3]
Consists of parts of the city of Kōchi.
District 2[changed 1][changed 3]
Consists of the cities of Kōchi (parts not included in District 1), Muroto, Aki, Nankoku, Kōnan and Kami, as well as the districts of Aki, Nagaoka, Tosa and the town of Ino (region of the former village of Hongawa).
District 3[changed 1][changed 5]
Consists of the cities of Tosa, Susaki, Shimanto, Sukumo and Tosashimizu, the towns of Ino (part not included in District 2) and Niyodogawa, as well as the districts of Takaoka and Hata.

Tokushima Prefecture[edit]

District 1[changed 1][changed 3]
Consists of the city of Tokushima and the Myodo district.
District 2[changed 1][changed 3]
Consists of the cities of Awa and Naruto, the parts of Mima city that comprised the former Mima and Waki towns, and the Itano and Miyoshi districts.
District 3[changed 1][changed 5]
Consists of the cities of Anan, Komatsushima, and Yoshinogawa, the parts of Mima city that comprised the former Anabuki town and Koyadaira village, and the Kaifu, Katsura, Mima, Myozai, and Naka districts.

Kyūshū[edit]

The Block constituency for Kyūshū (九州) elects 21 members proportionally. It includes Okinawa Prefecture as well.

Fukuoka Prefecture[edit]

District 1
Consists of the wards of Hakata-ku and Higashi-ku in Fukuoka.
District 2
Consists of the wards of Chūō-ku, Jonan-ku, and Minami-ku in Fukuoka.
District 3
Consists of the wards of Nishi-ku and Sawara-ku in Fukuoka, the city of Maebaru, and the Itoshima district.
District 4
Consists of the cities of Fukutsu, Koga, and Munakata, as well as the Kasuya district.
District 5
Consists of the cities of Amagi, Chikushino, Dazaifu, Kasuga, and Onojo, as well as the Asakura and Chikushi districts.
District 6
Consists of the cities of Kurume, Ogori, Okawa, and Ukiha, as well as the Mii and Mizuma districts.
District 7
Consists of the cities of Chikugo, Omuta, Yame, and Yanagawa, as well as the Miike, Yamato, and Yame districts.
District 8
Consists of the cities of Iizuka, Nakama, Nogata, and Yamada, as well as the Kaho, Kurate, and Onga districts.
District 9
Consists of the wards of Tobata-ku, Wakamatsu-ku, Yahatahigashi-ku, and Yahatanishi-ku in Kitakyushu.
District 10
Consists of the wards of Kokurakita-ku, Kokuraminami-ku, and Moji-ku in Kitakyushu.
District 11
Consists of the cities of Buzen, Tagawa, and Yukuhashi, as well as the Chikujo, Miyako, and Tagawa districts.

Kagoshima Prefecture[edit]

District 1
Consists of the portions of Kagoshima city administered from the central office and the Higashisakurajima, Ishiki, and Yoshino branch offices, as well as the portions comprising the former Sakurajima and Yoshida towns. Additionally includes the Kagoshima district.
District 2
Consists of the remainder of Kagoshima city, the cities of Ibusuki and Naze, and the Ibusuki and Ōshima districts.
District 3
Consists of the cities of Hioki, Kaseda, Kushikino, Makurazaki, and Satsumasendai, as well as the Hioki, Kawanabe, and Satsuma districts.
District 4
Consists of the cities of Akune, Izumi, Kokubu, and Okuchi, as well as the Aira, Isa, and Izumi districts.
District 5
Consists of the cities of Kanoya, Nishinoomote, Soo, and Tarumizu, as well as the Kimotsuki, Kumage, and Soo districts.

Kumamoto Prefecture[edit]

District 1
Consists of part of the city of Kumamoto (block by block definition not yet translated).
District 2
Consists of the part of Kumamoto city not in District 1, the cities Arao and Tamana, and the Tamana district.
District 3
Consists of the cities of Aso, Kikuchi, and Yamaga, as well as the Aso, Kamoto, and Kikuchi districts, and part of Yamato town comprising the former Soyo.
District 4[changed 3]
Consists of the cities of Hondo, Kami-Amakusa, Uki, Ushibuka, and Uto, as well as the Amakusa, Kamimashiki (less the former Soyo), and Shimomashiki districts.
District 5[changed 3]
Consists of the cities of Hitoyoshi, Minamata, and Yatsushiro, as well as the Ashikita, Kuma, and Yatsushiro districts.

Miyazaki Prefecture[edit]

District 1
Consists of the city of Miyazaki, as well as the Higashimorokata and Miyazaki districts.
District 2
Consists of the cities of Hyuga, Nobeoka, and Saito, as well as the Higashiusuki, Koyu, and Nishiusuki districts.
District 3
Consists of the cities of Ebino, Kobayashi, Kushima, Miyakonojo, and Nichinan, as well as the Kitamorokata, Minaminaka, and Nishimorokata districts.

Nagasaki Prefecture[edit]

District 1
Consists of Nagasaki, except for the former Sotome town.
District 2
Consists of the cities of Isahaya, Saikai, and Shimabara, as well as the Nishisonogi and Minamitakaki districts, and the former Sotome town.
District 3[changed 3]
Consists of the cities of Gotō, Iki, Omura, and Tsushima, as well as the Higashisonogi and Minamimatsura districts.
District 4[changed 3]
Consists of the cities of Hirado, Matsuura, and Sasebo, as well as the Kitamatsuura district.

Ōita Prefecture[edit]

District 1[changed 1]
Consists of the city of Ōita.
District 2[changed 1]
Consists of the cities of Bungo-ōno, Hita, Saiki, Taketa, Tsukumi, and Usuki, as well as the Kusu and Ōita districts.
District 3[changed 1]
Consists of the cities of Beppu, Bungotakada, Kitsuki, Nakatsu, and Usa, as well as the Hayami, Higashikunisaki, and Nishikunisaki districts.
(District 4)[changed 2]
Defunct

Okinawa Prefecture[edit]

District 1[changed 1]
Consists of the city of Naha, as well as the villages of Tokashiki, Zamami, Aguni, Tonaki, Minamidaitō, Kitadaitō and the town of Kumejima (all from the Shimajiri District).
District 2[changed 1]
Consists of the cities of Ginowan and Urasoe, as well as the Nakagami District.
District 3[changed 1]
Consists of the cities of Nago, Okinawa, Uruma, as well as the Kunigami District and the villages of Iheya and Izena from the Shimajiri District.
District 4[changed 4]
Consists of the cities of Miyakojima, Ishigaki, Itoman, Tomigusuku and Nanjō, as well as the towns of Yonabaru, Haebaru, Yaese (from the Shimajiri District), and the districts of Miyako and Yaeyama.

Saga Prefecture[edit]

District 1[changed 1][changed 3]
Consists of the cities of Saga and Tosu, as well as the Miyaki district and the town of Chiyoda.
District 2[changed 1][changed 3]
Consists of the cities of Kashima and Ogi, as well as the Fujitsu, Kanzaki (less Chiyoda), Kishima (less Yamauchi), and Saga districts.
District 3[changed 1][changed 5]
Consists of the cities of Imari, Karatsu, Takeo, and Taku, as well as the Higashimatsuura and Nishimatsuura districts and the town of Yamauchi.

Redistricting and reapportionment[edit]

Amendments to the electoral law in 2002[4] and 2013[5] changed the boundaries of single-member districts and reapportioned seats between prefectures (+5/-5 in 2002; +0/-5 in 2013, resulting in a net change of -5 in district seats in the House of Representatives to 295 and overall seats to 475). The borders of the regional proportional blocks have never changed, but the apportionment of seats to the regional proportional blocks changed in 2000 after the number of proportional seats had been reduced from 200 to 180 (reducing the total number of seats in the lower house from 500 to 480),[6] and in the 2002 reapportionment.

  1. ^ a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac ad ae af ag ah ai aj ak al am an ao ap aq ar as at au av aw ax ay az ba bb Redistricted in 2002 (first effective in the 2003 House of Representatives election)
  2. ^ a b c d e Eliminated in the 2002 reapportionment (first effective in the 2003 House of Representatives election)
  3. ^ a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac ad ae af ag ah ai aj ak Redistricted in 2013 (first effective in the 47th House of Representatives election)
  4. ^ a b c d e Created in the 2002 reapportionment (first effective in the 2003 House of Representatives election)
  5. ^ a b c d e Eliminated in the 2013 reapportionment (cuts seats in five prefectures without adding any; first effective in the 47th House of Representatives election)

See also[edit]

Notes[edit]

  1. ^ "Japanese Pass Bills On Electoral Reform". The New York Times. 3 November 1993. Retrieved 2008-08-09. 
  2. ^ CRS: Issue Brief IB93100 in the Government Document Digital Collection of the University of North Texas
  3. ^ Central Branch Office: Ichikawa (Blocks 1 to 3), Ichikawaminami (Blocks 1 to 5), Oosu (Blocks 1 to 4), Oowada (Blocks 1 to 5), Onigoe (Blocks 1 and 2), Onidaka (Blocks 1 to 4), Kamimyouden, Kitakata (Blocks 1 to 3), Kouya, Kouya (Blocks 1 to 3), Kouyashinmachi, Arata (Blocks 1 to 5), Sugano (Blocks 1 to 6), Takaishigami, Tajiri, Tajiri (Blocks 1 to 5), Toukagi (Blocks 1 to 3), Nakayama (Blocks 1 to 4), Baraki, Baraki (Blocks 1 to 4), Higashioowada (Blocks 1 and 2), Higashisugano (Blocks 1 to 3), Higashihama (Block 1), Hirata (Blocks 1 to 4), Futamata, Futamata (Blocks 1 and 2), Futamatashinmachi, Kitakatamachi (Block 4), Mama (Blocks 1 to 3), Minamihachiman (Blocks 1 to 5), Motokitakata (Blocks 1 to 3), Hachiman (Blocks 1 to 6), Wakamiya (Blocks 1 to 3); Gyoutoku Branch Office.
  4. ^ MIC: 衆議院小選挙区の区割りの改定等について
  5. ^ MIC: 衆議院小選挙区の区割りの改定等について
  6. ^ MIC: 衆議院比例代表選出議員の定数削減について

External links[edit]