List of districts of the House of Representatives of Japan

As of 2021^[update], 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. 233 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

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.^[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. However, the bill 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.

Redistricting and reapportionment

Amendments to the electoral law in 2002^[3] and 2013^[4] 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),^[5] 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.^[6]^[7]

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^[8]
District 1	Sapporo, wards of Chūō-ku, Minami-ku, and Nishi-ku	449,000
District 2	Sapporo, wards of Higashi-ku and Kita-ku	460,059
District 3	Sapporo, wards of Shiroishi-ku, Toyohira-ku, and Kiyota-ku	474,651
District 4	Teine-ku, Sapporo,along with Shiribeshi Subprefecture, including Otaru city.	367,042
District 5	Atsubetsu-ku, Sapporo, along with Ishikari Subprefecture.	467,916
District 6^{[changed 1]}	Kamikawa Subprefecture, including Asahikawa city.	419,702
District 7^{[changed 1]}	Kushiro Subprefecture and Nemuro Subprefecture	256,775
District 8	Hiyama Subprefecture and Oshima Subprefecture, including Hakodate city.	366,965
District 9	Hidaka Subprefecture and Iburi Subprefecture.	386,485
District 10^{[changed 1]}	Sorachi Subprefecture and Rumoi Subprefecture	290,578
District 11	Tokachi Subprefecture	285,616
District 12^{[changed 1]}	Abashiri Subprefecture and Sōya Subprefecture	290,109

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^[8]
District 1	City of Akita	263,570
District 2	Cities of Katagami, Kazuno, Kitaakita, Noshiro, Ōdate, and Oga Districts of Kazuno, Kitaakita, Minamiakita, and Yamamoto	264,112
District 3	Cities of Daisen, Yokote, Yurihonjō, and Yuzawa Districts of Hiraka, Ogachi, Senboku, and Yuri	326,434

Aomori Prefecture (3 districts)


District	Areas included	Number of constituents^[8]
District 1	Cities of Aomori and Mutsu	346,181
District 2	Cities of Hachinohe and Towada	393,348
District 3	Cities of Goshogawara and Hirakawa	352,889

Fukushima Prefecture (5 districts)


District	Areas included	Number of constituents^[8]
District 1	Cities of Fukushima, Haramachi and Soma Districts of Date and Sōma	408,796
District 2	Cities of Kōriyama and Nihonmatsu Districts of Adachi	349,178
District 3	Cities of Shirakawa, Sukagawa and Tamura District of Higashishirakawa, Ishikawa, Iwase, Nishishirakawa, and Tamura	267,552
District 4	Cities of Aizuwakamatsu and Kitakata Districts of Kawanuma, Minamiaizu, Ōnuma, and Yama	240,890
District 5	City of Iwaki District of Futaba	324,382

Iwate Prefecture (3 districts)


District	Areas included	Number of Constitents
1st district	City of Morioka District of Shiwa	294,318
2nd district^{[changed 2]}	Cities of Kuji, Miyako, Rikuzentakata, Kamaishi, Ofunato, Tono, Hachimantai, Takizawa, and Ninohe Districts of Iwate, Kunohe, Ninohe, Kesen, and Shimohei	376,270
3rd district^{[changed 2]}	Cities of Ichinoseki, and Oshu, Esashi, Hanamaki, Kitakami and Mizusawa Districts of Higashiiawai, Kamihei, Hienuki, Isawa, Waga, and Nishiiwai	380,161

Miyagi Prefecture (6 districts)


District	Areas included	Number of Constitents^[8]	Current representative	Party represented
1st district	Part of the city of Sendai (wards of Aoba-ku and Taihaku-ku).	437,128	Tōru Doi^[9]	LDP
2nd district	Part of the city of Sendai (wards of Izumi-ku, Miyagino-ku and Wakabayashi-ku).	454,848	Ken'ya Akiba^[10]	LDP
3rd district	Cities of Iwanuma, Kakuda, Natori, and Shiroishi Districts of Igu, Katta, Shibata, and Watari	288,807	Akihiro Nishimura^[11]	LDP
4th district	Cities of Furukawa, Shiogama, and Tagajō Districts of Kami, Kurokawa, Miyagi, and Shida	238,625	Shintarō Itō^[12]	LDP
5th district	City of Ishinomaki Districts of Oshika and Tōda	255,765	Jun Azumi^[10]	CDP
6th district	Cities of Kesennuma, Kurihara, and Tome Districts of Motoyoshi, and Tamatsukuri	257,090	Itsunori Onodera^[13]	LDP

Yamagata Prefecture (3 districts)


District	Areas included	Number of Constitents^[8]	Current representative	Party represented
1st district	Cities of Kaminoyama, Tendō, and Yamagata District of Higashimurayama	305,999	Toshiaki Endō^[14]	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^[15]	LDP
3rd district	Cities of Sakata, Shinjō, and Tsuruoka Districts of Akumi, Higashitagawa, Mogami, and Nishitagawa	292,162	Ayuko Katō^[16]	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^[8]	Current representative	Party represented
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^[13]
2nd district	Cities of Isesaki and Kiryū (except as above) Districts of Nitta, Sawa, and Yamada	335,206	Toshirō Ino	LDP^[12]
3rd district	Cities of Ōta (except as above) and Tatebayashi District of Oura	304,937	Hiroyoshi Sasagawa	LDP^[15]
4th district	Cities of Takasaki and Fujioka District of Tano	296,709	Tatsuo Fukuda	LDP^[17]
5th district	Cities of Annaka, Shibukawa, and Tomioka Districts of Agatsuma, Gunma, Kanra, Kitagunma, and Usui	306,133	Yūko Obuchi	LDP^[13]

Ibaraki Prefecture (7 districts)


District	Areas included	Number of Constitents^[8]	Current representative	Party represented
1st district	Cities of Chikusei, Kasama, Mito, and Shimotsuma District of Makabe Towns of Shirosato and Iwase	404,671	Yoshinori Tadokoro	LDP^[18]
2nd district	Cities of Kashima and Itako Districts of Higashiibaraki (except Shirosato), Kashima, Namegata, and Nishiibaraki (except Iwase)	358,229	Fukushirō Nukaga	LDP^[11]
3rd district	Cities of Inashiki, Moriya, Ryūgasaki, Toride, and Ushiku Districts of Inashiki and Kitasouma	390,819	Yasuhiro Hanashi	LDP^[19]
4th district^{[changed 2]}	Cities of Hitachinaka, Hitachiōmiya, Hitachiōta, and Naka Districts of Kuji and Naka	270,634	Hiroshi Kajiyama	LDP^[16]
5th district^{[changed 2]}	Cities of Hitachi, Kitaibaraki, and Takahagi	244,671	Akimasa Ishikawa	LDP^[12]
6th district	Cities of Ishioka, Kasumigaura, Tsuchiura, Tsukuba, and Tsukubamirai Districts of Niihari and Tsukuba	452,067	Ayano Kunimitsu	LDP^[16]
7th district	Cities of Bandō, Koga, Mitsukaido, and Yuki Districts of Sashima and Yūki	305,971	Kishirō Nakamura	Independent^[11]

Saitama Prefecture (15 districts)


District	Areas included	Number of Constitents^[8]	Current representative	Party represented
1st district	Saitama city (wards of Iwatsuki-ku, Midori-ku, Minuma-ku, and Urawa-ku)	461,964	Hideki Murai^[20]	LDP
2nd district	Cities of Hatogaya and Kawaguchi	470,382	Yoshitaka Shindō^[15]	LDP
3rd district	Cities of Koshigaya and Sōka	461,155	Hitoshi Kikawada^[16]	LDP
4th district	Cities of Asaka, Niiza, Shiki, and Wakō	385,295	Yasushi Hosaka^[19]	LDP
5th district	Saitama city (wards of: Chūō-ku, Kita-ku, Nishi-ku and Ōmiya-ku)	393,806	Yukio Edano^[14]	CDP
6th district	Cities of Ageo, Kitamoto, Kōnosu, and Okegawa Districts of Kitaadachi	443,614	Atsushi Ōshima^[13]	Kibo
7th district	Cities of Fujimi, Kamifukuoka, and Kawagoe	436,794	Saichi Kamiyama^[16]	LDP
8th district	City of Tokorozawa Part of district of Iruma (including towns of Miyoshi and Ōi)	366,333	Masahiko Shibayama^[15]	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^[13]	LDP
10th district	Cities of Higashimatsuyama, Sakado, and Tsurugashima District of Hiki	329,345	Taimei Yamaguchi^[21]	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^[16]	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^[11]	LDP
13th district	Cities of Hasuda, Kasukabe, and Kuki District of Minamisaitama	401,407	Shinako Tsuchiya^[18]	LDP
14th district	Cities of Misato, Satte, Yashio, and Yoshikawa District of Kitakatsushika	444,105	Hiromi Mitsubayashi^[20]	LDP
15th district	Saitama city (wards of Minami-ku and Sakura-ku) Cities of Toda and Warabi	422,081	Ryōsei Tanaka^[18]	LDP

Tochigi Prefecture (5 districts)


District	Areas included	Number of Constitents^[8]	Current representative	Party represented
1st district	City of Utsunomiya District of Kawachi (partially) Towns of Kaminokawa and Minamikawachi (in Kawachi district)	435,121	Hajime Funada	LDP^[17]
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^[17]
3rd district	Cities of Nasushiobara, Ōtawara, and Yaita District of Nasu	242,239	Kazuo Yana	LDP^[21]
4th district	Cities of Mooka and Oyama Districts of Haga and Shimotsuga	403,773	Tsutomu Sato	LDP^[15]
5th district	Cities of Ashikaga, Sano, and Tochigi	286,780	Toshimitsu Motegi	LDP^[20]

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.

Chiba Prefecture (13 districts)


District	Areas included	Number of Constitents^[22]
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^{[changed 1]}	Chiba City (ward of Midori-ku) City of Ichihara	337,348
4th district^{[changed 2]}	City of Funabashi	461,492
5th district^{[changed 1]}	City of Urayasu Part of the city of Ichikawa	451,207
6th district^{[changed 1]}	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^{[changed 1]}	Cities of Kashiwa (except for the annexed Shōnan town) and Abiko	421,712
9th district^{[changed 1]}	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^{[changed 2]}^{[changed 3]}	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

Kanagawa Prefecture (18 districts)


District	Areas included	Number of Constitents^[7]
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^{[changed 1]}	Yokohama City (wards of Kōhoku-ku and Tsuzuki-ku)	445,940
8th district^{[changed 1]}	Yokohama City (wards of Midori-ku and Aoba-ku)	426,564
9th district^{[changed 1]}	Kawasaki City (wards of Asao-ku and Tama-ku)	336,328
10th district^{[changed 2]}	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^{[changed 1]}	Parts of the city of Sagamihara	459,727
15th district	Cities of Chigasaki and Hiratsuka	472,627
16th district^{[changed 1]}	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^{[changed 3]}^{[changed 2]}	Kawasaki City (wards of Takatsu-ku and Miyamae-ku)	449,201

Yamanashi Prefecture (2 districts)


District	Areas included	Number of Constituents^[8]	Current representative	Party represented	Map
District 1^{[changed 2]}	Cities of Enzan, Kōfu, Nirasaki, Hokuto, Minami-arupusu, Chuo, Kai Districts of Higashiyamanashi, Nishiyatsushiro, Minamikoma, and Nakakoma	426,140
District 2^{[changed 2]}	Cities of Yamanashi, Fujiyoshida, Ōtsuki, Tsuru, Fuefuki, Koshu, and Uenohara Districts of Kitatsuru and Minamitsuru	264,495

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.

Tokyo Metropolis (25 districts)


District	Areas included	Number of Constitents^[8]
1st district	Tokyo wards of: Chiyoda, Minato and Shinjuku	465,432
2nd district	Tokyo wards of: Chūō, Bunkyō and Taitō	463,040
3rd district	Tokyo wards of: Shinagawa. Parts of the ward of Ōta. Also includes the Izu Islands.	473,543
4th district	The remainder of Ōta ward.	478,229
5th district	Tokyo wards of: Meguro. Parts of the ward of Setagaya.	469,317
6th district	The remainder of Setagaya ward.	470,024
7th district	Tokyo wards of: Shibuya and Nakano.	463,238
8th district	Tokyo ward of: Suginami.	480,517
9th district	Parts of the ward of Nerima.	479,583
10th district	Tokyo ward of: Toshima. The remainer of Nerima ward.	481,534
11th district	Tokyo ward of: Itabashi.	464,510
12th district	Tokyo wards of: Kita. Parts of the ward of Adachi.	466,598
13th district	The remainder of Adachi ward.	480,876
14th district	Tokyo wards of: Sumida and Arakawa.	466,618
15th district	Tokyo ward of: Kōtō.	423,874
16th district	Parts of the ward of Edogawa.	467,824
17th district	Tokyo wards of: Katsushika. The remainder of Edogawa ward.	477,742
18th district	Cities of: Musashino, Fuchū and Koganei.	443,634
19th district	Cities of: Kodaira, Kokubunji, Kunitachi and Nishitōkyō	437,625
20th district	Cities of: Higashimurayama, Higashiyamato, Kiyose, Higashikurume and Musashimurayama.	417,563
21st district	Cities of: Tachikawa, Akishima and Hino.	436,710
22nd district	Cities of: Mitaka, Chōfu, Komae and Inagi.	477,909
23rd district	Cities of: Machida and Tama.	458,093
24th district	City of: Hachiōji.	461,848
25th district	Cities of: Ōme, Fussa, Hamura, Akiruno. District of: Nishitama.	415,548

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.

Fukui Prefecture (2 districts)


District	Areas included	Number of Constitents	Current representative	Party represented	Map
1st district^{[changed 2]}	Cities of: Fukui, Ono, Katsuyama, Awara, Sakai. Districts of: Asuwa and Yoshida.
2nd district^{[changed 2]}	Cities of: Tsuruga, Obama, Echizen, and Sabae. Districts of: Imadate, Mikata, Minamikaminaka, Nanjō, Nyū, Ōi, and Sakai.

Ishikawa Prefecture (3 districts)


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

Niigata Prefecture (6 districts)


District	Areas included	Number of Constitents	Current representative	Party represented	Map
1st district^{[changed 1]}	City of Niigata (except for the recently annexed areas detailed under districts 2, 3, and 4).
2nd district^{[changed 1]}	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.
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).
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.
5th district	Cities of: Minamiuonuma, Nagaoka, Ojiya, and Uonuma. Districts of: Kitauonuma and Minamiuonuma.
6th district	Cities of: Itoigawa, Jōetsu, Myoko, and Tōkamachi. District of Nakauonuma

Nagano Prefecture (5 districts)


District	Areas included	Number of Constitents	Current representative	Party represented	Map
1st district	Cities of: Iiyama, Nagano (except for the recently annexed areas in District 2), Nakano, and Suzaka. Districts of: Kamitakai, Shimominochi, and Shimotakai.
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).
3rd district	Cities of: Chikuma, Komoro, Saku, Tōmi and Ueda. Districts of: Chiisagata, Hanishina, Kitasaku, and Minamisaku.
4th district	Cities of: Chino, Okaya, Shiojiri and Suwa. Districts of: Kiso and Suwa.
5th district	Cities of: Iida, Ina and Komagane. Districts of: Kamiina and Shimoina

Toyama Prefecture (3 districts)


District	Areas included	Number of Constitents	Current representative	Party represented	Map
1st district	City of Toyama, except for the annexed areas included in District 2.
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).
3rd district	Cities of: Himi, Nanto, Oyabe, Shinminato, Takaoka, and Tonami. DIstricts of: Imizu and Nishitonami.

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.

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.
2nd district	Nagoya city wards of: Chikusa, Moriyama and Meitō.
3rd district	Nagoya city wards of: Shōwa, Midori and Tenpaku.
4th district	Nagoya city wards of: Mizuho, Atsuta, Minato and Minami.
5th district^{[changed 1]}	Nagoya city wards of: Nakamura and Nakagawa. Cities of Kiyosu and Kitanagoya. District of Nishikasugai.
6th district^{[changed 1]}	Cities of Kasugai, Inuyama and Komaki.
7th district	Cities of Seto, Ōbu, Owariasahi, Toyoake, Nisshin. District of Aichi.
8th district	Cities of Handa, Tokoname, Tōkai and Chita. District of Chita.
9th district
10th district^{[changed 1]}
11th district
12th district
13th district
14th district
15th district

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 (5 districts)


District	Areas included	Number of Constitents	Current representative	Party represented
1st district
2nd district
3rd district
4th district
5th district

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 (4 districts)


District	Areas included	Number of Constitents	Current representative	Party represented
1st district
2nd district
3rd district
4th district

District 1 - Consists of the cities of Tsu and Matsuaka.

District 2 - Consists of the cities of Suzuka, Kameyama, Nabari, Iga, 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 Ise, Owase, Toba, Shima and Kumano, as well as the districts of Taki, Watarai, Kitamuro and Minamimuro.

Shizuoka Prefecture (8 districts)


District	Areas included	Number of Constitents	Current representative	Party represented
1st district
2nd district
3rd district
4th district
5th district
6th district
7th district
8th district

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 4]} - Defunct

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.

Hyōgo Prefecture (12 districts)


District	Areas included	Number of Constitents	Current representative	Party represented
1st district
2nd district
3rd district
4th district
5th district
6th district
7th district
8th district
9th district
10th district
11th district
12th district

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 (6 districts)


District	Areas included	Number of Constitents	Current representative	Party represented
1st district
2nd district
3rd district
4th district
5th district
6th district

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 (3 districts)


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

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.

Osaka Prefecture (19 districts)


District	Areas included	Number of Constitents	Current representative	Party represented
1st district
2nd district
3rd district
4th district
5th district
6th district
7th district
8th district
9th district
10th district
11th district
12th district
13th district
14th district
15th district
16th district
17th district
18th district
19th district

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 (4 districts)


District	Areas included	Number of Constitents	Current representative	Party represented
1st district
2nd district^{[changed 1]}
3rd district^{[changed 1]}
4th district^{[changed 3]}

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.

Wakayama Prefecture (3 districts)


District	Areas included	Number of Constitents	Current representative	Party represented
1st district
2nd district^{[changed 2]}
3rd district^{[changed 2]}

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.

Hiroshima Prefecture (7 districts)


District	Areas included	Number of Constitents	Current representative	Party represented
1st district
2nd district
3rd district
4th district
5th district
6th district
7th district

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
2nd district
3rd district
4th district
5th district

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 (2 districts)


District	Areas included	Number of Constitents	Current representative	Party represented
1st district^{[changed 1]}
2nd district^{[changed 1]}

District 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 - 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.

Tottori Prefecture (2 districts)


District	Areas included	Number of Constitents	Current representative	Party represented
1st district^{[changed 2]}
2nd district^{[changed 2]}

District 1 - 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 - 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 (4 districts)


District	Areas included	Number of Constitents	Current representative	Party represented
1st district
2nd district
3rd district
4th district

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 (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.

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^{[changed 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^{[changed 2]}	Cities of: Niihama, Saijō, and Shikokuchūō.
District 4	Cities of:f Ōzu, Seiyo, Uwajima, and Yawatahama. Districts of: Kita (except for part of Uchiko in District 2), Kitauwa, Minamiuwa, and Nishiuwa.

District 1 - Consists of the city of Matsuyama, except for the recently annexed regions comprising the former Hōjō city and Nakajima town.

District 2 - 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 2]} - 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 (3 districts)


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

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 (2 districts)


District	Areas included	Number of Constitents	Current representative	Party represented	Map
1st district^{[changed 1]}^{[changed 2]}	Parts of the city of Kōchi. Cities of: Muroto, Aki, Nankoku, Kōnan and Kami. Districts of: Aki, Nagaoka, and Tosa.	313,191
2nd district^{[changed 1]}^{[changed 2]}	Rest of the city of Kōchi. Cities of: Tosa, Susaki, Shimanto, Sukumo and Tosashimizu. Districts of: Takaoka, Hata, and Agawa.	291,892

Tokushima Prefecture (2 districts)


District	Areas included	Number of Constitents	Current representative	Party represented	Map
1st district^{[changed 1]}^{[changed 2]}	Cities of: Tokushima, Komatsushima, and Anan. Districts of: Myodo, Kaifu, Myozai, Katsura, and Naka.	365,641
2nd district^{[changed 1]}^{[changed 2]}	Cities of: Awa, Yoshinogawa, Naruto, Mima, and Miyoshi. Districts of: Itano, Mima, and Miyoshi.	263,940

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
1st district
2nd district
3rd district
4th district
5th district
6th district
7th district
8th district
9th district
10th district
11th district

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 Chikujō, Miyako, and Tagawa districts.

Kagoshima Prefecture (4 districts)


District	Areas included	Number of Constitents	Current representative	Party represented
1st district
2nd district
3rd district
4th district

District 1 - Consists of the portions of Kagoshima city (the portions that are administered from: the main office and the Higashisakurajima, Ishiki, Yoshino, Sakurajima and Yoshida branch offices). Includes the former cities of Matsumoto and Koriyama that are now part of the city of Kagoshima. Additionally includes the Kagoshima district.

District 2 - Consists of the remainder of Kagoshima city, the cities of Ibusuki, Makurazaki, Amami, Naze, Minamisatsuma, Minamikyushu, and the district of Ōshima.

District 3 - Consists of the cities of Izumi, Akune, Hioki, Kaseda, Kushikino, Ichikikushikino, Isa, Aira and Satsumasendai, as well as the Aira, Hioki, Kawanabe, Satsuma, and Izumi districts.

District 4 - Consists of the cities of Nishinoomote, Kanoya, Kokubu, Tarumizu, Soo, Shibushi, and Okuchi, as well as the Isa, Kimotsuki, Kumage, and Soo districts.

Kumamoto Prefecture (4 districts)


District	Areas included	Number of Constitents	Current representative	Party represented
1st district
2nd district
3rd district
4th district^{[changed 2]}

District 1 - Consists of part of the city of Kumamoto (the wards of Chuo, Higashi, and Kita)

District 2 - Consists of the parts of Kumamoto city not in District 1 (the wards of Nishi and Minami), the cities Arao and Tamana, and the Tamana district.

District 3 - Consists of the cities of Kochi, Aso, Kikuchi, and Yamaga, as well as the Aso, Kamimashiki, and Kikuchi districts.

District 4 - Consists of the cities of Yatsushiro, Hitoyoshi, Minamata, Hondo, Kami-Amakusa, Uki, Ushibuka, and Uto, as well as the Ashikita, Kuma, Yatsushiro, Amakusa, Kamimashiki, and Shimomashiki districts.

Miyazaki Prefecture (3 districts)


District	Areas included	Number of Constitents	Current representative	Party represented
1st district	City of Miyazaki, as well as the Higashimorokata and Miyazaki districts
2nd district
3rd district	the cities of Ebino, Kobayashi, Kushima, Miyakonojo, and Nichinan, as well as the Kitamorokata, Minaminaka, and Nishimorokata districts.

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 (4 districts)


District	Areas included	Number of Constitents	Current representative	Party represented
1st district
2nd district
3rd district^{[changed 2]}
4th district^{[changed 2]}

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 - Consists of the cities of Gotō, Iki, Omura, and Tsushima, as well as the Higashisonogi and Minamimatsura districts.

District 4^{[changed 2]} - Consists of the cities of Hirado, Matsuura, and Sasebo, as well as the Kitamatsuura district.

Ōita Prefecture (3 districts)


District	Areas included	Number of Constitents	Current representative	Party represented
1st district	City of Ōita (except for the former towns of Saganoseki and Notsuharu).	382,349	Yōichi Anami^[10]	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^[14]	LDP
3rd district	Cities of: Beppu, Bungotakada, Kitsuki, Nakatsu, Kunisaki, and Usa. Districts of: Hayami, Higashikunisaki, and Nishikunisaki.	305,166	Takeshi Iwaya^[12]	LDP

Okinawa Prefecture (4 districts)


District	Areas included	Number of Constitents	Current representative	Party represented
1st district^{[changed 1]}	City of: Naha. Villages of: Tokashiki, Zamami, Aguni, Tonaki, Minamidaitō, Kitadaitō. Town of: Kumejima. Districts of: Shimajiri (partially).	269,383	Seiken Akamine^[10]	Communist
2nd district^{[changed 1]}	Cities of: Ginowan and Urasoe. District of: Nakagami.	293,279	Kantoku Teruya^[18]	Social Democratic
3rd district^{[changed 1]}	Cities of: Nago, Okinawa, Uruma. Villages of: Iheya and Izena. Districts of: Kunigami.	315,487	Denny Tamaki^[18]	Independent
4th district^{[changed 3]}	Cities of: Miyakojima, Ishigaki, Itoman, Tomigusuku and Nanjō. Towns of: Yonabaru, Haebaru, Yaese. Districts of: Miyako, Yaeyama, Shimajiri (partially).	293,818	Kōsaburō Nishime^[11]	LDP

Saga Prefecture (2 districts)


District	Areas included	Number of Constitents^[8]	Current representative	Party represented	Map
1st district^{[changed 1]}^{[changed 2]}	Cities of: Saga, Tosu, and Kanzaki (city). Districts of: Miyaki and Kanzaki (district).	334,354	Hiroshi Ōgushi^[13]	Kibo
2nd district^{[changed 1]}^{[changed 2]}	Cities of: Kashima, Ogi, Imari, Karatsu, Takeo, and Taku. Districts of: Fujitsu, Kishima, Higashimatsuura, and Nishimatsuura.	344,937	Hideko Nishioka^[11]	Kibo

Notes

^ ^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 2002 (first effective in the 2003 House of Representatives election)
^ ^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 Redistricted in 2013 (first effective in the 47th House of Representatives election)
^ ^a ^b ^c ^d Created in the 2002 reapportionment (first effective in the 2003 House of Representatives election)
^ Eliminated in the 2002 reapportionment (first effective in the 2003 House of Representatives election)

References

^ "Japanese Pass Bills On Electoral Reform". The New York Times. 3 November 1993. Retrieved 2008-08-09.
^ CRS: Issue Brief IB93100 in the Government Document Digital Collection of the University of North Texas
^ MIC: 衆議院小選挙区の区割りの改定等について
^ MIC: 衆議院小選挙区の区割りの改定等について
^ MIC: 衆議院比例代表選出議員の定数削減について
^ MIC: 衆議院小選挙区の区割りの改定等について
^ ^a ^b NHK Senkyo Web: 衆院小選挙区区割り見直し改正公選法が成立
^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m "総務省｜令和2年9月1日現在選挙人名簿及び在外選挙人名簿登録者数". 総務省 (in Japanese). Retrieved 2021-06-12.
^ "Members D_The House of Representatives,Japan". www.shugiin.go.jp. Retrieved 2021-08-10.
^ ^a ^b ^c ^d "Members A_The House of Representatives,Japan". www.shugiin.go.jp. Retrieved 2021-06-11.
^ ^a ^b ^c ^d ^e ^f "Members N_The House of Representatives,Japan". www.shugiin.go.jp. Retrieved 2021-06-11.
^ ^a ^b ^c ^d "Members I_The House of Representatives,Japan". www.shugiin.go.jp. Retrieved 2021-06-11.
^ ^a ^b ^c ^d ^e ^f "Members O_The House of Representatives,Japan". www.shugiin.go.jp. Retrieved 2021-06-11.
^ ^a ^b ^c "Members E_The House of Representatives,Japan". www.shugiin.go.jp. Retrieved 2021-08-09.
^ ^a ^b ^c ^d ^e "Members S_The House of Representatives,Japan". www.shugiin.go.jp. Retrieved 2021-06-11.
^ ^a ^b ^c ^d ^e ^f "Members K_The House of Representatives,Japan". www.shugiin.go.jp. Retrieved 2021-06-11.
^ ^a ^b ^c "Members F_The House of Representatives,Japan". www.shugiin.go.jp. Retrieved 2021-08-15.
^ ^a ^b ^c ^d ^e "Members T_The House of Representatives,Japan". www.shugiin.go.jp. Retrieved 2021-06-11.
^ ^a ^b "Members H_The House of Representatives,Japan". www.shugiin.go.jp. Retrieved 2021-06-11.
^ ^a ^b ^c "Members M_The House of Representatives,Japan". www.shugiin.go.jp. Retrieved 2021-06-11.
^ ^a ^b "Members Y_The House of Representatives,Japan". www.shugiin.go.jp. Retrieved 2021-06-12.
^ "総務省｜令和2年9月1日現在選挙人名簿及び在外選挙人名簿登録者数". 総務省 (in Japanese). Retrieved 2021-10-09.

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)

[2002_changed-9] ^ ^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 2002 (first effective in the 2003 House of Representatives election)

[2013_changed-10] ^ ^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 Redistricted in 2013 (first effective in the 47th House of Representatives election)

[2002_created-25] Created in the 2002 reapportionment (first effective in the 2003 House of Representatives election)

[2002_eliminated-26] Eliminated in the 2002 reapportionment (first effective in the 2003 House of Representatives election)

[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] MIC: 衆議院小選挙区の区割りの改定等について

[4] MIC: 衆議院小選挙区の区割りの改定等について

[5] MIC: 衆議院比例代表選出議員の定数削減について

[6] MIC: 衆議院小選挙区の区割りの改定等について

[:15-7] NHK Senkyo Web: 衆院小選挙区区割り見直し改正公選法が成立

[:2-8] ^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m "総務省｜令和2年9月1日現在選挙人名簿及び在外選挙人名簿登録者数". 総務省 (in Japanese). Retrieved 2021-06-12.

[11] "Members D_The House of Representatives,Japan". www.shugiin.go.jp. Retrieved 2021-08-10.

[:10-12] "Members A_The House of Representatives,Japan". www.shugiin.go.jp. Retrieved 2021-06-11.

[:3-13] ^ ^a ^b ^c ^d ^e ^f "Members N_The House of Representatives,Japan". www.shugiin.go.jp. Retrieved 2021-06-11.

[:1-14] "Members I_The House of Representatives,Japan". www.shugiin.go.jp. Retrieved 2021-06-11.

[:6-15] ^ ^a ^b ^c ^d ^e ^f "Members O_The House of Representatives,Japan". www.shugiin.go.jp. Retrieved 2021-06-11.

[:11-16] "Members E_The House of Representatives,Japan". www.shugiin.go.jp. Retrieved 2021-08-09.

[:5-17] "Members S_The House of Representatives,Japan". www.shugiin.go.jp. Retrieved 2021-06-11.

[:4-18] ^ ^a ^b ^c ^d ^e ^f "Members K_The House of Representatives,Japan". www.shugiin.go.jp. Retrieved 2021-06-11.

[:14-19] "Members F_The House of Representatives,Japan". www.shugiin.go.jp. Retrieved 2021-08-15.

[:8-20] "Members T_The House of Representatives,Japan". www.shugiin.go.jp. Retrieved 2021-06-11.

[:7-21] "Members H_The House of Representatives,Japan". www.shugiin.go.jp. Retrieved 2021-06-11.

[:0-22] "Members M_The House of Representatives,Japan". www.shugiin.go.jp. Retrieved 2021-06-11.

[:9-23] "Members Y_The House of Representatives,Japan". www.shugiin.go.jp. Retrieved 2021-06-12.

[24] "総務省｜令和2年9月1日現在選挙人名簿及び在外選挙人名簿登録者数". 総務省 (in Japanese). Retrieved 2021-10-09.

[1]

[2]

[3]

[4]

[5]

[6]

[7]

[8]

[changed 1]

[changed 2]

[9]

[10]

[11]

[12]

[13]

[14]

[15]

[16]

[17]

[18]

[19]

[20]

[21]

[22]

[changed 3]

[changed 4]

v t e First-past-the-post (FPTP) districts and proportional representation (PR) "blocks" for the Japanese House of Representatives of the National Diet (1996–present)
Speaker of the House of Representatives of Japan: Fukushiro Nukaga, Ibaraki 2nd Vice Speaker of the House of Representatives of Japan: Banri Kaieda, Tokyo PR
Hokkaidō (8 block seats, 12 district seats)	Hokkaidō 1 2 3 4 5 6 7 8 9 10 11 12
Tōhoku (12 block seats, 23 district seats)	Aomori 1 2 3 Iwate 1 2 3 Miyagi 1 2 3 4 5 Akita 1 2 3 Yamagata 1 2 3 Fukushima 1 2 3 4
Kita- (North) Kantō (19 block seats, 32 district seats)	Ibaraki 1 2 3 4 5 6 7 Tochigi 1 2 3 4 5 Gunma 1 2 3 4 5 Saitama 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Minami- (South) Kantō (23 block seats, 33 district seats)	Chiba 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Kanagawa 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Yamanashi 1 2
Tokyo (19 block seats, 25 district seats)	Tokyo 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
Hokuriku-Shin'etsu (10 block seats, 19 district seats)	Niigata 1 2 3 4 5 Toyama 1 2 3 Ishikawa 1 2 3 Fukui 1 2 Nagano 1 2 3 4 5
Tōkai (21 block seats, 32 district seats)	Gifu 1 2 3 4 5 Shizuoka 1 2 3 4 5 6 7 8 Aichi 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Mie 1 2 3 4
Kinki (28 block seats, 47 district seats)	Shiga 1 2 3 Kyoto 1 2 3 4 5 6 Osaka 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 Hyōgo 1 2 3 4 5 6 7 8 9 10 11 12 Nara 1 2 3 Wakayama 1 2
Chūgoku (10 block seats, 20 district seats)	Tottori 1 2 Shimane 1 2 Okayama 1 2 3 4 Hiroshima 1 2 3 4 5 6 Yamaguchi 1 2 3
Shikoku (6 block seats, 11 district seats)	Tokushima 1 2 Kagawa 1 2 3 Ehime 1 2 3 Kōchi 1 2
Kyūshū (20 block seats, 35 district seats)	Fukuoka 1 2 3 4 5 6 7 8 9 10 11 Saga 1 2 Nagasaki 1 2 3 Kumamoto 1 2 3 4 Ōita 1 2 3 Miyazaki 1 2 3 Kagoshima 1 2 3 4 Okinawa 1 2 3 4
Districts eliminated in the 2002 reapportionments	Hokkaido 13 Yamagata 4 Shizuoka 9 Shimane 3 Oita 4
Districts eliminated in the 2013 reapportionments	Fukui 3 Yamanashi 3 Tokushima 3 Kochi 3 Saga 3
Districts eliminated in the 2017 reapportionments	Aomori 4 Iwate 4 Mie 5 Nara 4 Kumamoto 5 Kagoshima 5
Districts eliminated in the 2022 reapportionments	Miyagi 6 Fukushima 5 Niigata 6 Shiga 4 Wakayama 3 Okayama 5 Hiroshima 7 Yamaguchi 4 Ehime 4 Nagasaki 4