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Districts of the House of Representatives.

As of 2021, the House of Representatives of Japan is elected from a combination of multi-member districts and single-member districts, a method called Parallel voting. Currently, 176 members are elected from 11 multi-member districts (called proportional representation blocks or PR blocks) by a party-list system of proportional representation (PR), and 289 members are elected from single-member districts, for a total of 465. 238 seats are therefore required for a majority. Each PR block consists of one or more prefectures, and each prefecture is divided into one or more single-member districts. In general, the block districts correspond loosely to the major regions of Japan, with some of the larger regions (such as Kantō) subdivided.

History

Main article: 1994 Japanese electoral reform

Until 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. 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. However, the bill stalled in the House of Councillors. 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.

Redistricting and reapportionment

Amendments to the electoral law in 2002 and 2013 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), and in the 2002 reapportionment.

Another reapportionment was passed by the National Diet in June 2017. In the majoritarian segment, it will change 97 districts in 19 prefectures, six are eliminated without replacement (one each in Aomori, Iwate, Mie, Nara, Kumamoto and Kagoshima). In the proportional segment, four "blocks" lose a seat each (Tōhoku, N. Kantō, Kinki, Kyūshū). Thus, the number of majoritarian seats is reduced to 289, the number of proportional seats to 176, the House of Representatives overall shrinks to 465. The reform takes effect one month after promulgation, i.e. on July 16, 2017.

Hokkaidō (8 block seats)

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

Hokkaidō Prefecture (12 districts)

District	Areas included	Number of constituents	Current representative	Party represented	Map
District 1	Sapporo, wards of Chūō-ku, Minami-ku, and Nishi-ku	449,000	Daiki Michshita	CDP
District 2	Sapporo, wards of Higashi-ku and Kita-ku	460,059	Kenko Matsuki	CDP
District 3	Sapporo, wards of Shiroishi-ku, Toyohira-ku, and Kiyota-ku	474,651	Satoshi Arai	CDP
District 4	Teine-ku, Sapporo,along with Shiribeshi Subprefecture, including Otaru city.	367,042	Hiroyuki Nakamura	LDP
District 5	Atsubetsu-ku, Sapporo, along with Ishikari Subprefecture.	467,916	Yoshiaki Wada	LDP
District 6	Kamikawa Subprefecture, including Asahikawa city.	419,702	Takahiro Sasaki	CDP
District 7	Kushiro Subprefecture and Nemuro Subprefecture	256,775	Yoshitaka Ito	LDP
District 8	Hiyama Subprefecture and Oshima Subprefecture, including Hakodate city.	366,965	Seiji Osaka	CDP
District 9	Hidaka Subprefecture and Iburi Subprefecture.	386,485	Manabu Horii	LDP
District 10	Sorachi Subprefecture and Rumoi Subprefecture	290,578	Hisashi Inatsu	Komeito
District 11	Tokachi Subprefecture	285,616	Kaori Ishikawa	CDP
District 12	Abashiri Subprefecture and Sōya Subprefecture	290,109	Arata Takebe	LDP

Tohoku (13 block seats)

The block constituency for Tohoku (比例東北ブロック) elects 14 members proportionally. It corresponds to the Tohoku region.

Akita Prefecture (3 districts)

District	Areas included	Number of constituents	Current representative	Party represented	Map
District 1	City of Akita	263,570	Hiroyuki Togashi	LDP
District 2	Cities of Katagami, Kazuno, Kitaakita, Noshiro, Ōdate, and Oga Districts of Kazuno, Kitaakita, Minamiakita, and Yamamoto	264,112	Katsutoshi Kaneda	LDP
District 3	Cities of Daisen, Yokote, Yurihonjō, and Yuzawa Districts of Hiraka, Ogachi, Senboku, and Yuri	326,434	Nobuhide Minorikawa	LDP

Aomori Prefecture (3 districts)

District	Areas included	Number of constituents	Current representative	Party represented	Map
District 1	Cities of Aomori and Mutsu	346,181	Jun Tsushima	LDP
District 2	Cities of Hachinohe and Towada	393,348	Tadamori Oshima	Independent
District 3	Cities of Goshogawara and Hirakawa	352,889	Jiro Kimura	LDP

Fukushima Prefecture (5 districts)

District	Areas included	Number of constituents	Current representative	Party represented	Map
District 1	Cities of Fukushima, Haramachi and Soma Districts of Date and Sōma	408,796	Emi Kaneko	CDP
District 2	Cities of Kōriyama and Nihonmatsu Districts of Adachi	349,178	Takumi Nemoto	LDP
District 3	Cities of Shirakawa, Sukagawa and Tamura District of Higashishirakawa, Ishikawa, Iwase, Nishishirakawa, and Tamura	267,552	Koichiro Genba	CDP
District 4	Cities of Aizuwakamatsu and Kitakata Districts of Kawanuma, Minamiaizu, Ōnuma, and Yama	240,890	Ichiro Kanke	LDP
District 5	City of Iwaki District of Futaba	324,382	Masayoshi Yoshino	LDP

Iwate Prefecture (3 districts)

District	Areas included	Number of Constitents	Current representative	Party represented	Map
1st district	City of Morioka. District of Shiwa.	294,318	Takeshi Shina	CDP
2nd district	Cities of Kuji, Miyako, Rikuzentakata, Kamaishi, Ofunato, Tono, Hachimantai, Takizawa, and Ninohe. Districts of Iwate, Kunohe, Ninohe, Kesen, and Shimohei.	376,270	Shun'ichi Suzuki	LDP
3rd district	Cities of Ichinoseki, and Oshu, Esashi, Hanamaki, Kitakami and Mizusawa. Districts of Higashiiawai, Kamihei, Hienuki, Isawa, Waga, and Nishiiwai.	380,161	Ichirō Ozawa	CDP

Miyagi Prefecture (6 districts)

District	Areas included	Number of Constitents	Current representative	Party represented	Map
1st district	Part of the city of Sendai (wards of Aoba-ku and Taihaku-ku).	437,128	Tōru Doi	LDP
2nd district	Part of the city of Sendai (wards of Izumi-ku, Miyagino-ku and Wakabayashi-ku).	454,848	Ken'ya Akiba	LDP
3rd district	Cities of Iwanuma, Kakuda, Natori, and Shiroishi. Districts of Igu, Katta, Shibata, and Watari.	288,807	Akihiro Nishimura	LDP
4th district	Cities of Furukawa, Shiogama, and Tagajō. Districts of Kami, Kurokawa, Miyagi, and Shida.	238,625	Shintarō Itō	LDP
5th district	City of Ishinomaki. Districts of Oshika and Tōda.	255,765	Jun Azumi	CDP
6th district	Cities of Kesennuma, Kurihara, and Tome. Districts of Motoyoshi, and Tamatsukuri.	257,090	Itsunori Onodera	LDP

Yamagata Prefecture (3 districts)

District	Areas included	Number of Constitents	Current representative	Party represented	Map
1st district	Cities of Kaminoyama, Tendō, and Yamagata. District of Higashimurayama.	305,999	Toshiaki Endō	LDP
2nd district	Cities of Higashine, Murayama, Nagai, Nan'yō, Obanazawa, Sagae, and Yonezawa. Districts of Higashiokitama, Kitamurayama, Nishimurayama, and Nishiokitama.	318,476	Norikazu Suzuki	LDP
3rd district	Cities of Sakata, Shinjō, and Tsuruoka. Districts of Akumi, Higashitagawa, Mogami, and Nishitagawa.	292,162	Ayuko Katō	LDP

Kita- (North) Kanto (19 block seats)

The Northern Kanto proportional representation block (北関東) elects 20 members proportionally. It includes four prefectures in northern Kanto.

Gunma Prefecture (5 districts)

District	Areas included	Number of Constitents	Current representative	Party represented	Map
1st district	Cities of: Maebashi and Numata. Districts of: Seta and Tone. Also includes the former towns of Kurohone and Niisato, now annexed into Kiryū.	381,712	Asako Omi	LDP
2nd district	Cities of: Isesaki and Kiryū (except as above). Districts of: Nitta, Sawa, and Yamada.	335,206	Toshirō Ino	LDP
3rd district	Cities of: Ōta (except as above) and Tatebayashi. District of: Oura.	304,937	Hiroyoshi Sasagawa	LDP
4th district	Cities of: Takasaki and Fujioka. District of: Tano.	296,709	Tatsuo Fukuda	LDP
5th district	Cities of: Annaka, Shibukawa, and Tomioka. Districts of: Agatsuma, Gunma, Kanra, Kitagunma, and Usui.	306,133	Yūko Obuchi	LDP

Ibaraki Prefecture (7 districts)

District	Areas included	Number of Constitents	Current representative	Party represented	Map
1st district	Cities of: Chikusei, Kasama, Mito, and Shimotsua. District of: Makabe. Towns of: Shirosato and Iwase.	404,671	Yoshinori Tadokoro	LDP
2nd district	Cities of: Kashima and Itako. Districts of: Higashiibaraki (except Shirosato), Kashima, Namegata, and Nishiibaraki (except Iwase).	358,229	Fukushirō Nukaga	LDP
3rd district	Cities of: Inashiki, Moriya, Ryūgasaki, Toride, and Ushiku. Districts of: Inashiki and Kitasouma.	390,819	Yasuhiro Hanashi	LDP
4th district	Cities of: Hitachinaka, Hitachiōmiya, Hitachiōta, and Naka. Districts of: Kuji and Naka.	270,634	Hiroshi Kajiyama	LDP
5th district	Cities of: Hitachi, Kitaibaraki, and Takahagi.	244,671	Akimasa Ishikawa	LDP
6th district	Cities of: Ishioka, Kasumigaura, Tsuchiura, and Tsukuba. Districts of: Niihari and Tsukuba.	452,067	Ayano Kunimitsu	LDP
7th district	Cities of: Bandō, Koga, Mitsukaido, and Yuki. Districts of: Sashima and Yūki.	305,971	Kishirō Nakamura	Independent

Saitama Prefecture (15 districts)

District	Areas included	Number of Constitents	Current representative	Party represented	Map
1st district	Saitama city - wards of: Iwatsuki-ku, Midori-ku, Minuma-ku, and Urawa-ku.	461,964	Hideki Murai	LDP
2nd district	Cities of Hatogaya and Kawaguchi.	470,382	Yoshitaka Shindō	LDP
3rd district	Cities of Koshigaya and Sōka	461,155	Hitoshi Kikawada	LDP
4th district	Cities of Asaka, Niiza, Shiki, and Wakō.	385,295	Yasushi Hosaka	LDP
5th district	Saitama city - wards of: Chūō-ku, Kita-ku, Nishi-ku and Ōmiya-ku.	393,806	Yukio Edano	CDP
6th district	Cities of Ageo, Kitamoto, Kōnosu, and Okegawa. Districts of Kitaadachi	443,614	Atsushi Ōshima	Kibo
7th district	Cities of Fujimi, Kamifukuoka, and Kawagoe.	436,794	Saichi Kamiyama	LDP
8th district	City of Tokorozawa Part of district of Iruma (including towns of Miyoshi and Ōi).	366,333	Masahiko Shibayama	LDP
9th district	Cities of Hannō, Hidaka, Iruma, and Sayama. Part of district of Iruma (including towns of Moroyama and Ogose).	406,785	Taku Ōtsuka	LDP
10th district	Cities of Higashimatsuyama, Sakado, and Tsurugashima. District of Hiki.	329,345	Taimei Yamaguchi	LDP
11th district	Cities of Chichibu, Fukaya, and Honjō. District of Chichibu and Kodama. Part of district of Ōsato (including towns of Hanazono, Kawamoto, Kōnan, Okabe and Yorii)	354,891	Ryūji Koizumi	LDP
12th district	Cities of Gyōda, Hanyū, Kazo, and Kumagaya. District of Kitasaitama. Part of district of Ōsato (including towns of Menuma and Ōsato)	372,182	Atsushi Nonaka	LDP
13th district	Cities of Hasuda, Kasukabe, and Kuki. District of Minamisaitama.	401,407	Shinako Tsuchiya	LDP
14th district	Cities of Misato, Satte, Yashio, and Yoshikawa. District of Kitakatsushika.	444,105	Hiromi Mitsubayashi	LDP
15th district	Saitama city - wards of: Minami-ku and Sakura-ku Cities of Toda and Warabi.	422,081	Ryōsei Tanaka	LDP

Tochigi Prefecture (5 districts)

District	Areas included	Number of Constitents	Current representative	Party represented	Map
1st district	City of: Utsunomiya. Districts of: Kawachi (partially). Towns of: Kaminokawa and Minamikawachi (in Kawachi district).	435,121	Hajime Funada	LDP
2nd district	Cities of: Imaichi, Kanuma, Nikkō, and Sakura. Districts of: Kamitsuga, Shioya, and Kawachi (partially). Towns of: Kamikawachi and Kawachi (in Kawachi district).	264,743	Akio Fukuda	Independent
3rd district	Cities of: Nasushiobara, Ōtawara, and Yaita. District of: Nasu.	242,239	Kazuo Yana	LDP
4th district	Cities of: Mooka and Oyama. Districts of: Haga and Shimotsuga.	403,773	Tsutomu Sato	LDP
5th district	Cities of: Ashikaga, Sano, and Tochigi.	286,780	Toshimitsu Motegi	LDP

Minami- (Southern) Kanto (22 block seats)

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 two prefectures in southern Kanto and one in eastern Chubu.

Districts in Chiba prefecture. The capital city of Chiba contains multiple districts (district 1, and part of districts 2, 3, and 9)

Chiba Prefecture (13 districts)

District	Areas included	Number of Constitents	Current representative	Party represented
1st district	Chiba city wards of: Chūō-ku, Inage-ku, and Mihama-ku.	427,315
2nd district	Chiba city ward of: Hanamigawa-ku. Cities of: Narashino and Yachiyo.	457,526
3rd district	Chiba city ward of: Midori-ku. City of Ichihara.	337,348
4th district	City of Funabashi.	461,492
5th district	City of Urayasu. Part of the city of Ichikawa.	451,207
6th district	Remainer of the city of Ichikawa. Part of the city of Matsudo.	370,008
7th district	Remainer of the city of Matsudo. Cities of: Nagareyama and Noda.	431,924
8th district	Cities of: Kashiwa (except for the annexed Shōnan town) and Abiko.	421,712
9th district	Chiba city ward of: Wakaba-ku. Cities of: Sakura, Yachimata, and Yotsukaidō.	409,701
10th district	Cities of: Asahi, Chōshi, Narita, Sawara, and Yōkaichiba. Districts of: Katori and Sōsa.	346,693
11th district	Cities of: Katsuura, Mobara, Tōgane. Districts of: Chōsei, Isumi, and Sanbu.	355,958
12th district	Cities of: Futtsu, Kamogawa, Kimitsu, Kisarazu, Sodegaura, and Tateyama. District of: Awa.	383,846
13th district	Cities of: Inzai, Kamagaya, Shiroi, and Tomisato. District of: Iba district Part of the city of Kashiwa formerly comprising the annexed Shōnan town.	415,762

Districts in Kanagawa prefecture. Districts not labeled are part of the city of Yokohama, which contains all of districts 1-8 except district 4). See the close up (below) for more information.

Kanagawa Prefecture (18 districts)

District	Areas included	Number of Constitents	Current representative	Party represented
1st district	Yokohama city wards of: Naka-ku, Isogo-ku, and Kanazawa-ku.	428,847
2nd district	Yokohama city wards of: Kōnan-ku, Minami-ku, and Nishi-ku.	436,063
3rd district	Yokohama city wards of: Kanagawa-ku and Tsurumi-ku.	442,354
4th district	Yokohama city ward of: Sakae-ku. Cities of: Kamakura and Zushi. Districts of: Miura.	332,340
5th district	Yokohama city wards of: Izumi-ku, Seya-ku, and Totsuka-ku.	466,918
6th district	Yokohama city wards of: Asahi-ku and Hodogaya-ku.	382,249
7th district	Yokohama city wards of: Kōhoku-ku and Tsuzuki-ku.	445,940
8th district	Yokohama city wards of: Midori-ku and Aoba-ku.	426,564
9th district	Kawasaki city wards of: Asao-ku and Tama-ku.	336,328
10th district	Kawasaki city wards of: Kawasaki-ku, Nakahara-ku, and Saiwai-ku.	471,623
11th district	Cities of: Miura and Yokosuka.	378,536
12th district	City of Fujisawa. District of Koza.	402,952
13th district	Cities of: Ayase, Ebina, Yamato, and Zama	469,949
14th district	Parts of the city of Sagamihara.	459,727
15th district	Cities of: Chigasaki and Hiratsuka.	472,627
16th district	Cities of: Atsugi and Isehara. Districts of: Aikō and Tsukui. Remainder of the city of Sagamihara.	467,271
17th district	Cities of: Hadano, Minamiashigara, and Odawara. Districts of: Ashigarakami and Ashigarashimo	426,379
18th district	Kawasaki city wards of: Takatsu-ku and Miyamae-ku.	449,201

The city of Yokohama (the prefectural capital) in more detail

Districts in Yamanashi prefecture

Yamanashi Prefecture (2 districts)

District 1 - Consists of the cities of Enzan, Kōfu, Nirasaki, Hokuto, Minami-arupusu, Chuo, Kai, and, as well as the districts of Higashiyamanashi, Nishiyatsushiro, Minamikoma, and Nakakoma.

District 2 - Consists of the cities of Yamanashi, Fujiyoshida, Ōtsuki, Tsuru, Fuefuki, Koshu, and Uenohara, as well as the Kitatsuru and Minamitsuru districts.

Tokyo (17 block seats)

The block constituency for Tokyo (比例東京ブロック) elects 17 members proportionally. It covers Tokyo prefecture.

Districts in Tokyo prefecture. The Izu islands (bottom of picture) are in district 3

Tokyo Metropolis (25 districts)

District	Areas included	Number of Constitents	Current representative	Party represented
1st district	Tokyo wards of: Chiyoda, Minato and Shinjuku	465,432	Banri Kaieda	CDP
2nd district	Tokyo wards of: Chūō, Bunkyō and Taitō	463,040	Kiyoto Tsuji	LDP
3rd district	Tokyo wards of: Shinagawa. Parts of the ward of Ōta. Also includes the Izu Islands.	473,543	Hirotaka Ishihara	LDP
4th district	The remainder of Ōta ward.	478,229	Masaaki Taira	LDP
5th district	Tokyo wards of: Meguro. Parts of the ward of Setagaya.	469,317	Kenji Wakamiya	LDP
6th district	The remainder of Setagaya ward.	470,024	Takayuki Ochiai	CDP
7th district	Tokyo wards of: Shibuya and Nakano.	463,238	Akira Nagatsuma	CDP
8th district	Tokyo ward of: Suginami.	480,517	Nobuteru Ishihara	LDP
9th district	Parts of the ward of Nerima.	479,583	Isshū Sugawara	LDP
10th district	Tokyo ward of: Toshima. The remainer of Nerima ward.	481,534	Hayato Suzuki	LDP
11th district	Tokyo ward of: Itabashi.	464,510	Hakubun Shimomura	LDP
12th district	Tokyo wards of: Kita. Parts of the ward of Adachi.	466,598	Akihiro Ōta	Komeito
13th district	The remainder of Adachi ward.	480,876	Ichirō Kamoshita	LDP
14th district	Tokyo wards of: Sumida and Arakawa.	466,618	Midori Matsushima	LDP
15th district	Tokyo ward of: Kōtō.	423,874	Tsukasa Akimoto	LDP
16th district	Parts of the ward of Edogawa.	467,824	Hideo Ōnishi	LDP
17th district	Tokyo wards of: Katsushika. The remainder of Edogawa ward.	477,742	Katsuei Hirasawa	LDP
18th district	Cities of: Musashino, Fuchū and Koganei.	443,634	Naoto Kan	CDP
19th district	Cities of: Kodaira, Kokubunji, Kunitachi and Nishitōkyō	437,625	Yōhei Matsumoto	LDP
20th district	Cities of: Higashimurayama, Higashiyamato, Kiyose, Higashikurume and Musashimurayama.	417,563	Seiji Kihara	LDP
21st district	Cities of: Tachikawa, Akishima and Hino.	436,710	Akihisa Nagashima	Kibo
22nd district	Cities of: Mitaka, Chōfu, Komae and Inagi.	477,909	Tatsuya Itō	LDP
23rd district	Cities of: Machida and Tama.	458,093	Masanobu Ogura	LDP
24th district	City of: Hachiōji.	461,848	Kōichi Hagiuda	LDP
25th district	Cities of: Ōme, Fussa, Hamura, Akiruno. District of: Nishitama.	415,548	Shinji Inoue	LDP

Close up of districts in Tokyo city

Hokurikushinetsu (11 block seats)

The block constituency for Hokurikushinetsu (北陸信越) elects 11 members proportionally. It combines five prefectures of the Hokuriku and Shin'etsu subregions in northern Chubu.

Districts in Fukui Prefecture

Fukui Prefecture (2 districts)

District	Areas included	Number of Constitents	Current representative	Party represented
1st district	Cities of: Fukui, Ono, Katsuyama, Awara, Sakai. Districts of: Asuwa and Yoshida.	378,389
2nd district	Cities of: Tsuruga, Obama, Echizen, and Sabae. Districts of: Imadate, Mikata, Minamikaminaka, Nanjō, Nyū, Ōi, and Sakai.	264,964

Districts in Ishikawa Prefecture

Ishikawa Prefecture (3 districts)

District	Areas included	Number of Constitents	Current representative	Party represented
1st district	City of Kanazawa	376,617
2nd district	Cities of: Hakusan, Kaga, Komatsu, and Nomi. Districts of: Enuma, Ishikawa, and Nomi.	326,300
3rd district	Cities of: Hakui, Kahoku, Nanao, Suzu, and Wajima. Districts of: Hakui, Hōsu, Kahoku, and Kashima.	246,873

Districts in Niigata Prefecture

Niigata Prefecture (6 districts)

District	Areas included	Number of Constitents	Current representative	Party represented
1st district	City of Niigata (except for the recently annexed areas detailed under districts 2, 3, and 4).	436,099
2nd district	Cities of: Kashiwazaki, Sado, and Tsubame. Parts of the city of Niigata (the former town of Nishikawa). Districts of: Kariwa, Nishikanbara, and Santō. The villages of Ajikata, Iwamuro, Katahigashi, Nakanokuchi and Tsukigata in Nishikanbara District.	292,481
3rd district	Cities of: Agano, Gosen, Murakami, and Shibata. Districts of: Higashikanbara, Iwafune, Kitakanbara, and Nakakanbara. Parts of the city of Niigata (the former town of Toyosaka).	302,484
4th district	Cities of: Kamo, Mitsuke, Sanjō, and Tochio. District of Minamikanbara. Parts of the city of Niigata (the former towns of Niitsu and Shirone). The villages of Kameda, Kosudo and Yokogoshi in the Nakakanbara District.	310,793
5th district	Cities of: Minamiuonuma, Nagaoka, Ojiya, and Uonuma. Districts of: Kitauonuma and Minamiuonuma.	277,522
6th district	Cities of: Itoigawa, Jōetsu, Myoko, and Tōkamachi. District of Nakauonuma	276,524

Districts in Nagano Prefecture

Nagano Prefecture (5 districts)

District	Areas included	Number of Constitents	Current representative	Party represented
1st district	Cities of: Iiyama, Nagano (except for the recently annexed areas in District 2), Nakano, and Suzaka. Districts of: Kamitakai, Shimominochi, and Shimotakai.	427,662
2nd district	Cities of: Matsumoto and Ōmachi. Districts of: Higashichikuma, Kamiminochi, Kitaazumi, and Minamiazumi. Parts of the city of Nagano (the Sarashina district as well as the former towns of Kinasa, Togakushi, and Toyono previously in the Kamiminochi district).	384,380
3rd district	Cities of: Chikuma, Komoro, Saku, Tōmi and Ueda. Districts of: Chiisagata, Hanishina, Kitasaku, and Minamisaku.	400,988
4th district	Cities of: Chino, Okaya, Shiojiri and Suwa. Districts of: Kiso and Suwa.	242,555
5th district	Cities of: Iida, Ina and Komagane. Districts of: Kamiina and Shimoina	282,486

Districts in Toyama Prefecture

Toyama Prefecture (3 districts)

District	Areas included	Number of Constitents	Current representative	Party represented
1st district	City of Toyama, except for the annexed areas included in District 2.	268,527
2nd district	Cities of: Kurobe, Namerikawa, and Uozu. Districts of: Nakaniikawa and Shimoniikawa. Parts of the city of Toyama (the parts that formerly comprised the Kaminiikawa and Nei districts).	250,161
3rd district	Cities of: Himi, Nanto, Oyabe, Shinminato, Takaoka, and Tonami. DIstricts of: Imizu and Nishitonami.	368,558

Tokai (21 block seats)

The block constituency for Tokai (東海) elects 21 members proportionally. It covers three prefectures in southern Chubu, as well as one prefecture in Kinki.

Districts in Aichi Prefecture

Aichi Prefecture (15 districts)

District	Areas included	Number of Constitents	Current representative	Party represented
1st district	Nagoya city wards of: Higashi, Kita, Nishi, and Naka.	398,766
2nd district	Nagoya city wards of: Chikusa, Moriyama and Meitō.	404,011
3rd district	Nagoya city wards of: Shōwa, Midori and Tenpaku.	417,125
4th district	Nagoya city wards of: Mizuho, Atsuta, Minato and Minami.	375,061
5th district	Nagoya city wards of: Nakamura and Nakagawa. Cities of: Kiyosu and Kitanagoya. Districts of: Nishikasugai.	432,891
6th district	Cities of: Kasugai, Inuyama and Komaki.	436,893
7th district	Cities of: Seto, Ōbu, Owariasahi, Toyoake, and Nisshin. District of: Aichi.	455,184
8th district	Cities of: Handa, Tokoname, Tōkai and Chita. Districts of: Chita.	440,327
9th district	Cities of: Tsushima, Inazawa, Aisai, and Yatomi. Parts of the city of Ichinomiya. Districts of: Ama.	434,899
10th district	Cities of: Kōnan and Iwakura. Parts of the city of Ichinomiya. Districts of: Niwa.	438,206
11th district	Cities of: Toyota (except for the region of the former town of Inabu). Districts of: Nishikamo.	385,762
12th district	Cities of: Okazaki and Nishio. Districts of: Hazu and Nukata.	445,783
13th district	Cities of: Hekinan, Kariya, Anjō, Chiryū and Takahama.	423,751
14th district	Cities of: Toyokawa, Gamagōri, Shinshiro. Parts of the city of Toyota. Districts of: Kitashitara and Hoi.	297,486
15th district	Cities of: Toyohashi and Tahara.	350,731

Aichi City in more detail

Districts in Gifu Prefecture

Gifu Prefecture (5 districts)

District	Areas included	Number of Constitents	Current representative	Party represented
1st district	City of Gifu (except for the region of the former town of Yanaizu).	327,371
2nd district	Cities of: Ōgaki and Kaizu. Districts of: Yōrō, Fuwa, Anpachi and Ibi.	303,539
3rd district	Cities of: Seki, Mino, Hashima, Kakamigahara, Yamagata, Mizuho, and Motosu. The rest of the city of Gifu. Districts of: Hashima and Motosu.	424,393
4th district	Cities of: Takayama, Minokamo, Kani, Hida, Gujō and Gero. Districts of: Kamo, Kani and Ōno.	334,339
5th district	Cities of: Tajimi, Nakatsugawa, Mizunami, Ena and Toki	277,422

Districts in Mie Prefecture

Mie Prefecture (4 districts)

District	Areas included	Number of Constitents	Current representative	Party represented
1st district	Cities of: Tsu and Matsuaka	362,001
2nd district	Cities of: Suzuka, Kameyama, Nabari, and Iga. Parts of the city of Yokkaichi.	411,238
3rd district	Cities of: Kuwana and Inabe. Parts of the city of Yokkaichi. Districts of: Kuwana, Inabe and Mie.	415,337
4th district	Cities of: Ise, Owase, Toba, Shima and Kumano Districts of: Taki, Watarai, Kitamuro and Minamimuro.	301,879

Districts of Shizuoka Prefecture. The cities of Hamamatsu (3, 7, 8) and Shizuoka City (1, 4) encompass multiple districts.

Shizuoka Prefecture (8 districts)

District	Areas included	Number of Constitents	Current representative	Party represented
1st district	Shizuoka city wards of: Aoi and Suruga.	388,665
2nd district	Cities of: Shimada, Yaizu, Fujieda, andMakinohara. Parts of the city of Omaezaki. Districts of: Shida and Haibara.	391,138
3rd district	Parts of Hamamatsu city ward of Tenryū. Cities of: Iwata, Fukuroi, Kakegawa, Kikugawa. Parts of the city of Omaezaki. Districts of: Shūchi.	374,001
4th district	Shizuoka city ward of Shimizu. City of Fujinomiya. Districts of: Fuji and Ihara.	322,887
5th district	Cities of: Mishima, Fuji, Gotenba, and Susono. Parts of the city of Izunokuni. District of Tagata. Town of Oyama.	460,824
6th district	Cities of: Numazu, Atami, Itō, Shimoda, and Izu. Parts of the city of Izunokuni. District of Kamo. Towns of Shimizu and Nagaizumi.	429,958
7th district	Hamamatsu city wards of: Nishi, Kita, Hamakita. Parts of the Hamamatsu city ward of Tenryū, Naka, and Minami. City of Kosai. District of Hamana.	330,222
8th district	Hamamatsu city ward of Higashi. Parts of the Hamamatsu city ward of Tenryū, Naka, and Minami.	367,944

Kinki/Kansai (28 block seats)

The block constituency for Kinki (Kansai) (近畿) elects 29 members proportionally. It corresponds to the Kinki region minus Mie Prefecture.

Districts of Hyogo Prefecture. The city of Kobe (purple) encompasses multiple districts.

Hyōgo Prefecture (12 districts)

District	Areas included	Number of Constitents	Current representative	Party represented
1st district	Kobe city wards of: Chūō-ku, Higashinada-ku, and Nada-ku.
2nd district	Kobe city wards of: Hyōgo-ku, Kita-ku, and Nagata-ku.
3rd district	Kobe city wards of: Suma-ku and Tarumi-ku
4th district	Kobe city ward of Nishi-ku. Cities of: Kasai, Miki, Nishiwaki, and Ono. Districts of: Katō, Mino and Taka.
5th district	Cities of: Asago, Sanda, Sasayama, Tamba, Toyooka, and Yabu Districts of: Kawabe and Mikata.
6th district	Cities of: Itami, Kawanishi and Takarazuka.
7th district	Cities of: Ashiya and Nishinomiya.
8th district	City of Amagasaki.
9th district	Cities of: Akashi, Awaji, Minamiawaji, and Sumoto. District of Tsuna.
10th district	Cities of: Kakogawa and Takasago. District of Kako.
11th district	City of Himeji.
12th district	Cities of: Aioi, Ako, Shiso, and Tatsuno. Districts of: Akō, Ibo, Kanzaki, Sayō, Shikama and Shisō.

Districts of Kyoto Prefecture. The City of Kyoto (purple) encompasses multiple districts.

Kyoto Prefecture (6 districts)

District	Areas included	Number of Constitents	Current representative	Party represented
1st district	Kyoto city wards of: Kamigyō-ku, Kita-ku, Nakagyō-ku, Minami-ku, and Shimogyō-ku.
2nd district	Kyoto city wards of: Higashiyama-ku, Sakyō-ku, and Yamashina-ku.
3rd district	Kyoto city ward of Fushimi-ku. Cities of: Mukō and Nagaokakyō. District of Otokuni.
4th district	Kyoto city wards of: Nishikyō-ku and Ukyō-ku. City of Kameoka. Districts of: Funai and Kitakuwada.
5th district	Cities of: Ayabe, Fukuchiyama, Kyōtango, Maizuru, and Miyazu. Districts of: Amata, Kasa, and Yosa.
6th district	Cities of: Joyo, Kyōtanabe, Uji, and Yawata. Districts of: Kuse, Sōraku, and Tsuzuki.

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.

Districts of Nara Prefecture

Nara Prefecture (3 districts)

District	Areas included	Number of Constitents	Current representative	Party represented
1st district	Cities of:
2nd district	Cities of: Districts of:
3rd district	Cities of: Districts of:

District 1 - Consists of the cities of Ikoma and Nara (except for the recently annexed Tsuge village).

District 2 - Consists of the cities of Ikoma, Kashiba, Tenri, and Yamatokōriyama, as well as the districts of Yamabe, Ikoma, Kitakatsuragi and Shiki. Also includes the part of Nara city that was formerly Tsuge village in the Yamabe district.

District 3 - Consists of the cities of Gojō, Kashihara, and Sakurai, Gose, Katsuragi, and Yamatotakada, as well as the districts of Takaichi, Uda, and Yoshino.

Districts in Osaka Prefecture. The City of Osaka (purple) encompasses many districts and is shown in detail below.

Osaka Prefecture (19 districts)

District	Areas included	Number of Constitents	Current representative	Party represented
1st district	Osaka city wards of:
2nd district	Osaka city wards of:
3rd district	Osaka city wards of:
4th district	Osaka city wards of:
5th district	Osaka city wards of:
6th district	Osaka city wards of: Cities of:
7th district	Cities of:
8th district	City of
9th district	Cities of: District of
10th district
11th district	Cities of:
12th district	Cities of:
13th district	City of
14th district	Cities of:
15th district	Parts of the city of Districts of:
16th district	Parts of the city of
17th district	Parts of the city of
18th district	Cities of: District of
19th district	Cities of: District of

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.

Detailed image of districts in Osaka City

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.

Districts in Shiga Prefecture

Shiga Prefecture (4 districts)

District	Areas included	Number of Constitents	Current representative	Party represented
1st district	Cities of: Districts of:
2nd district	Cities of: Parts of the city of Districts:
3rd district	Cities of:
4th district	City of: Parts of the city of Districts of:

District 1 - Consists of the cities of Ōtsu and Takashima as well as the Shiga district.

District 2 - 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 - Consists of the cities of Kusatsu, Moriyama, Rittō and Yasu.

District 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.

Districts in Wakayama Prefecture

Wakayama Prefecture (3 districts)

District	Areas included	Number of Constitents	Current representative	Party represented
1st district	City of
2nd district	Cities of: Districts of:
3rd district	Cities of: Districts of:

District 1 - Consists of Wakayama city.

District 2 - Consists of Hashimoto and Kainan cities, as well as the Ito, Kaisō, and Naga districts.

District 3 - Consists of Arida, Gobō, Shingū, and Tanabe cities, as well as the Arida, Hidaka, Higashimuro, and Nishimuro districts.

Chugoku (11 block seats)

The block constituency for Chugoku (中国) elects 11 members proportionally. It corresponds to the Chugoku region.

Districts in Hiroshima Prefecture. The city of Hiroshima (purple) includes multiple districts.

Hiroshima Prefecture (7 districts)

District	Areas included	Number of Constitents	Current representative	Party represented
1st district	Hiroshima city wards of:
2nd district	Hiroshima city wards of: Cities of: District of
3rd district	Hiroshima city wards of: Cities of: District of
4th district	Hiroshima city ward of Parts of the cities of: District of
5th district	City of Parts of the cities of: District of
6th district	Cities of: Parts of the city of Districts of:
7th district	City of District of

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.

Districts in Okayama Prefecture. The city of Okayama (purple) includes multiple districts.

Okayama Prefecture (5 districts)

District	Areas included	Number of Constitents	Current representative	Party represented
1st district	Parts of the city of Okayama. Parts of the town of Kibichūō.
2nd district	Parts of the city of Okayama. Cities of Tamano and Setouchi.
3rd district	Parts of the cities of Okayama and Maniwa Cities of: Tsuyama, Bizen, Akaiwa, and Mimasaka. Districts of: Wake, Maniwa, Tomata, Katsuta, Aida and Kume.
4th district	Parts of the city of Kurashiki. District of Tsukubo.
5th district	Parts of the city of Maniwa and Kurashiki. Cities of: Kasaoka, Ibara, Sōja, Takahashi, Niimi, and Asakuchi. Parts of the town of Kibichūō. Districts of: Asakuchi and Oda.

DIstricts in Shimane Prefecture

Shimane Prefecture (2 districts)

District	Areas included	Number of Constitents	Current representative	Party represented
1st district	Cities of: Matsue and Yasugi. Parts of the cities of: Unnan andIzumo. Districts of: Nita, Oki and Yatsuka.
2nd district	Cities of: Gōtsu, Hamada, Masuda, and Ōda. Parts of the cities of: Izumo and Unnan Districts of: Hikawa, Iishi, Kanoashi, Mino, Naka, Nima, and Ōchi.

Districts in Tottori Prefecture

Tottori Prefecture (2 districts)

District	Areas included	Number of Constitents	Current representative	Party represented
1st district	Cities of: Kurayoshi and Tottori. Districts of: Iwami, Ketaka, and Yazu. Towns of: Misasa and Yurihama
2nd district	Cities of: Sakaiminato and Yonago. Districts of: Hino and Saihaku. Towns of: Daiei, Hōjō, and Kotoura.

Districts in Yamaguchi Prefecture

Yamaguchi Prefecture (4 districts)

District	Areas included	Number of Constitents	Current representative	Party represented
1st district	Cities of: Hōfu and Yamaguchi city (except for the annexed Atō town). Parts of the city of Shūnan.
2nd district	Cities of: Hikari, Iwakuni, Kudamatsu, and Yanai. Districts of: Kuga, Kumage, and Ōshima Parts of the city of Shūnan.
3rd district	Cities of: Hagi, Mine, Sanyo-Onoda, Ube, and Yamaguchi (the former Atō town). District of Abu.
4th district	Cities of: Nagato and Shimonoseki.

Shikoku (6 block seats)

The block constituency for Shikoku (比例四国ブロック) elects 6 members proportionally. It corresponds to the Shikoku region.

Districts in Ehime Prefecture

Ehime Prefecture (4 districts)

District	Areas Included	Number of constituents	Representative	Party represented	Map
District 1	City of: Matsuyama, except for the recently annexed regions comprising the former Hōjō city and Nakajima town.
District 2	Cities of Imabari, Iyo, and Tōon. Districts of: Iyo, Kamiukena, and 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	Cities of: Niihama, Saijō, and Shikokuchūō.
District 4	Cities of: Ōzu, Seiyo, Uwajima, and Yawatahama. Districts of: Kita (except for part of Uchiko in District 2), Kitauwa, Minamiuwa, and Nishiuwa.

Districts in Kagawa Prefecture

Kagawa Prefecture (3 districts)

District	Areas included	Number of Constitents	Current representative	Party represented
1st district	City of Takamatsu. District of Shozu. Parts of the district of Kagawa.
2nd district	Cities of: Higashikagawa, Sakaide, and Sanuki Districts of: Ayauta and Kita. Parts of the district of Kagawa.
3rd district	Cities of: Kan'onji, Marugame, and Zentsuji. Districts of: Mitoyo and Nakatado.

Kōchi Prefecture (2 districts)

District	Areas included	Number of Constitents	Current representative	Party represented	Map
1st district	Parts of the city of Kōchi. Cities of: Muroto, Aki, Nankoku, Kōnan and Kami. Districts of: Aki, Nagaoka, and Tosa.	313,191	Gen Nakatani	LDP
2nd district	Rest of the city of Kōchi. Cities of: Tosa, Susaki, Shimanto, Sukumo and Tosashimizu. Districts of: Takaoka, Hata, and Agawa.	291,892	Hajime Hirota	Independent

Tokushima Prefecture (2 districts)

District	Areas included	Number of Constitents	Current representative	Party represented	Map
1st district	Cities of: Tokushima, Komatsushima, and Anan. Districts of: Myodo, Kaifu, Myozai, Katsura, and Naka.	365,641	Masazumi Gotōda	LDP
2nd district	Cities of: Awa, Yoshinogawa, Naruto, Mima, and Miyoshi. Districts of: Itano, Mima, and Miyoshi.	263,940	Shun'ichi Yamaguchi	LDP

Kyūshū (20 block seats)

The block constituency for Kyūshū (九州) elects 21 members proportionally. It includes all the prefectures on Kyūshū island, as well as Okinawa Prefecture.

Fukuoka Prefecture (11 districts)

District	Areas included	Number of Constitents	Current representative	Party represented	Map
1st district	Fukuoka city wards of: Hakata-ku and Higashi-ku.				rowspan=11|
2nd district	Fukuoka city wards of: Chūō-ku, Jonan-ku, and Minami-ku.
3rd district	Fukuoka city wards of: Nishi-ku and Sawara-ku. City of Maebaru. District of Itoshima.
4th district	Cities of: Fukutsu, Koga, and Munakata.
5th district	Cities of: Amagi, Chikushino, Dazaifu, Kasuga, and Onojo. Districts of: Asakura and Chikushi.
6th district	Cities of: Kurume, Ogori, Okawa, and Ukiha. Districts of: Mii and Mizuma.
7th district	Cities of: Chikugo, Omuta, Yame, and Yanagawa. Districts of: Miike, Yamato, and Yame.
8th district	Cities of: Iizuka, Nakama, Nogata, and Yamada. Districts of: Kaho, Kurate, and Onga.
9th district	Kitakyushu city wards of: Tobata-ku, Wakamatsu-ku, Yahatahigashi-ku, and Yahatanishi-ku.
10th district	Kitakyushu city wards of: Kokurakita-ku, Kokuraminami-ku, and Moji-ku.
11th district	Cities of: Buzen, Tagawa, and Yukuhashi. Districts of: Chikujō, Miyako, and Tagawa.

Kagoshima Prefecture (4 districts)

District	Areas included	Number of Constitents	Current representative	Party represented	Map
1st district	Parts of the city of Kagoshima. District of Kagoshima.
2nd district	Parts of the city of Kagoshima. Cities of: Ibusuki, Makurazaki, Amami, Naze, Minamisatsuma, Minamikyushu. District of Ōshima.
3rd district	Cities of: Izumi, Akune, Hioki, Kaseda, Kushikino, Ichikikushikino, Isa, Aira and Satsumasendai. Districts of: Aira, Hioki, Kawanabe, Satsuma, and Izumi.
4th district	Cities of: Nishinoomote, Kanoya, Kokubu, Tarumizu, Soo, Shibushi, and Okuchi. Districts of: Isa, Kimotsuki, Kumage, and Soo.

Kumamoto Prefecture (4 districts)

District	Areas included	Number of Constitents	Current representative	Party represented	Map
1st district	Kumamoto city wards of: Chuo, Higashi, and Kita.
2nd district	Kumamoto city wards of: Nishi and Minami. Cities of: Arao and Tamana. District of Tamana.
3rd district	Cities of: Kochi, Aso, Kikuchi, and Yamaga. Districts of: Aso, Kamimashiki, and Kikuchi.
4th district	Cities of: Yatsushiro, Hitoyoshi, Minamata, Hondo, Kami-Amakusa, Uki, Ushibuka, and Uto. Districts of: Ashikita, Kuma, Yatsushiro, Amakusa, Kamimashiki, and Shimomashiki.

Miyazaki Prefecture (3 districts)

District	Areas included	Number of Constitents	Current representative	Party represented	Map
1st district	City of Miyazaki. Districts of: Higashimorokata and Miyazaki.
2nd district	Cities of: Hyuga, Nobeoka, and Saito. Districts of: Higashiusuki, Koyu, and Nishiusuki.
3rd district	Cities of: Ebino, Kobayashi, Kushima, Miyakonojo, and Nichinan. Districts of: Kitamorokata, Minaminaka, and Nishimorokata.

Nagasaki Prefecture (4 districts)

District	Areas included	Number of Constitents	Current representative	Party represented	Map
1st district	City of Nagasaki (except for the former Sotome town).
2nd district	Cities of: Isahaya, Saikai, and Shimabara. Districts of: Nishisonogi and Minamitakaki. Former town of Sotome.
3rd district	Cities of: Gotō, Iki, Omura, and Tsushima. Districts of: Higashisonogi and Minamimatsura.
4th district	Cities of: Hirado, Matsuura, and Sasebo. District of Kitamatsuura.

Ōita Prefecture (3 districts)

District	Areas included	Number of Constitents	Current representative	Party represented	Map
1st district	City of Ōita (except for the former towns of Saganoseki and Notsuharu).	382,349	Yōichi Anami	LDP
2nd district	Remainder of City of Ōita. Cities of: Bungo-ōno, Hita, Saiki, Taketa, Tsukumi, Yufu, and Usuki. District of: Kusu.	272,808	Seishirō Etō	LDP
3rd district	Cities of: Beppu, Bungotakada, Kitsuki, Nakatsu, Kunisaki, and Usa. Districts of: Hayami, Higashikunisaki, and Nishikunisaki.	305,166	Takeshi Iwaya	LDP

Okinawa Prefecture (4 districts)

District	Areas included	Number of Constitents	Current representative	Party represented	Map
1st district	City of: Naha. Villages of: Tokashiki, Zamami, Aguni, Tonaki, Minamidaitō, Kitadaitō. Town of: Kumejima. Districts of: Shimajiri (partially).	269,383	Seiken Akamine	Communist
2nd district	Cities of: Ginowan and Urasoe. District of: Nakagami.	293,279	Kantoku Teruya	Social Democratic
3rd district	Cities of: Nago, Okinawa, Uruma. Villages of: Iheya and Izena. Districts of: Kunigami.	315,487	Denny Tamaki	Independent
4th district	Cities of: Miyakojima, Ishigaki, Itoman, Tomigusuku and Nanjō. Towns of: Yonabaru, Haebaru, Yaese. Districts of: Miyako, Yaeyama, Shimajiri (partially).	293,818	Kōsaburō Nishime	LDP

Saga Prefecture (2 districts)

District	Areas included	Number of Constitents	Current representative	Party represented	Map
1st district	Cities of: Saga, Tosu, and Kanzaki (city). Districts of: Miyaki and Kanzaki (district).	334,354	Hiroshi Ōgushi	Kibo
2nd district	Cities of: Kashima, Ogi, Imari, Karatsu, Takeo, and Taku. Districts of: Fujitsu, Kishima, Higashimatsuura, and Nishimatsuura.	344,937	Hideko Nishioka	Kibo

See also

• List of districts of the House of Councillors of Japan
• House of Representatives (Japan)
• Proportional Representation

External links

• MIC, e-Gov legal database: 公職選挙法 (kōshoku senkyo hō), Law No. 100 of April 25, 1950 (the three appended tables list the area/number of seats for all electoral districts to both Houses of the National Diet); MOJ, Japanese Law Translation Database: Public Offices Election Act ([by definition unofficial] translation to English, if available)

Category:General elections in Japan Japan