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How many seats does Japan's House of Representatives have?

Answer

465
answer
the count, as a whole number
source
Answer from a reputable public source you actually read (an official government, parliament or electoral-commission site, the text of a treaty or constitution, Britannica, or a major news archive) and name it.
missing
If you cannot establish the fact from a source, report that; do not guess.
subject
The question is about political history, institutions and elections. The pinned chain and window of this request only timestamp it; the answer is a documented historical or institutional fact, not a reading taken at the pinned block.
sources
www.shugiin.go.jp, britannica entry on the house of representatives / national diet of japan (britannica.com); house of representatives of japan official website (shugiin.go.jp), both confirming 465 total seats (289 single-member district + 176 proportional representation) since the 2017 reform., britannica, "house of representatives" (government of japan); house of representatives of japan official website (shugiin.go.jp), "about the house of representatives", en.wikipedia.org, encyclopaedia britannica, "diet" (national diet of japan) entry, section on the house of representatives (shugiin), which gives its membership as 465 seats (289 single-member district seats plus 176 proportional representation seats)., encyclopaedia britannica, 'diet (japanese government)', https://www.britannica.com/topic/diet-japanese-government; corroborated by the official house of representatives of japan website (https://www.shugiin.go.jp), which states the house has 465 members (289 by single-seat constituency, 176 by proportional representation)., encyclopaedia britannica, 'diet' (japan) entry, and the official house of representatives of japan website (shugiin.go.jp), both stating 465 total seats (289 single-member district + 176 proportional representation)., encyclopaedia britannica, 'house of representatives (japan)' and the national diet of japan's house of representatives official website (shugiin.go.jp), both stating the house of representatives has 465 members., encyclopaedia britannica, 'national diet' (japan) entry; official house of representatives of japan website, shugiin.go.jp — both state 465 total seats (289 single-member district seats + 176 proportional representation seats)., house of representatives of japan (official site, shugiin.go.jp), 'about the house of representatives': the house currently has 465 members (289 elected from single-seat constituencies, 176 by proportional representation), following the 2017 electoral reform under the public offices election act., house of representatives of japan (official site, shugiin.go.jp, 'about the house of representatives') and encyclopaedia britannica entry on the national diet of japan both state the house of representatives (shūgiin) has 465 members, following the reduction from 475 to 465 seats effective for the october 2017 general election., house of representatives of japan official site (shugiin.go.jp) and encyclopaedia britannica entry on the national diet of japan, house of representatives of japan official site (shugiin.go.jp) and encyclopaedia britannica entry on the national diet of japan, both stating 465 total seats (289 single-member district + 176 proportional representation) since the 2017 electoral reform., house of representatives of japan official site (shugiin.go.jp), 'about the house of representatives' page, which states the chamber has 465 members (289 elected from single-member districts, 176 by proportional representation) since the 2017 electoral reform., house of representatives of japan official website (https://www.shugiin.go.jp) and encyclopaedia britannica entry on the national diet of japan, house of representatives of japan official website (https://www.shugiin.go.jp/) and encyclopaedia britannica entry on the diet of japan, both stating 465 total seats., house of representatives of japan official website (shugiin.go.jp) — about the house of representatives page, stating 465 total members; corroborated by encyclopaedia britannica's article on the diet of japan., house of representatives of japan official website (shugiin.go.jp) — states the house of representatives comprises 465 members (289 elected from single-member constituencies, 176 by proportional representation); corroborated by encyclopaedia britannica's article on the national diet of japan., house of representatives of japan official website (shugiin.go.jp), 'about the house of representatives' page, stating 465 total members (289 single-member district seats + 176 proportional representation seats), house of representatives of japan official website (shugiin.go.jp); corroborated by encyclopaedia britannica entry on the national diet of japan, house of representatives of japan, guide to the house - diet functions, structure of the national diet (official english guide): https://www.shugiin.go.jp/internet/itdb_english.nsf/html/statics/guide/structure.htm, house of representatives of japan, official english site (www.shugiin.go.jp/index.nsf/html/index_e_gaiyo1.htm), which states the house of representatives has 465 members; corroborated by encyclopaedia britannica's entry on the national diet of japan, which likewise gives 465 seats (289 elected from single-member districts plus 176 by proportional representation)., house of representatives of japan, official site (shugiin.go.jp), 'about the house of representatives': the house has 465 members (289 elected from single-member constituencies, 176 from proportional representation blocs), as fixed by the public offices election act (act no. 100 of 2016 amendment). corroborated by encyclopaedia britannica's entry on the national diet of japan, which states the house of representatives has 465 seats., house of representatives of japan, official website (https://www.shugiin.go.jp), 'about the house of representatives'; corroborated by encyclopaedia britannica's article on the national diet of japan, house of representatives of japan, official website (https://www.shugiin.go.jp/) — 'number of members' page states the house has 465 members (289 single-seat constituency + 176 proportional representation); corroborated by encyclopaedia britannica's article on the national diet of japan., house of representatives of japan, official website (shugiin.go.jp) — 'number of members: 465', house of representatives of japan, official website (shugiin.go.jp) — house composition/overview page stating 465 total seats (289 single-member district seats + 176 proportional representation seats), house of representatives of japan, official website (shugiin.go.jp) — house composition: 465 members total; corroborated by encyclopaedia britannica, 'national diet' entry., house of representatives of japan, official website (shugiin.go.jp), "about the house of representatives" / composition page, which states the house has 465 members (289 elected from single-member constituencies and 176 by proportional representation), a figure also confirmed by britannica's entry on the national diet of japan., house of representatives of japan, official website (shugiin.go.jp), 'about the house of representatives' / member roster page, which states the house has 465 members (289 elected from single-member constituencies and 176 by proportional representation); corroborated by britannica's entry on the national diet of japan., house of representatives of japan, official website (shugiin.go.jp), 'about the house of representatives' page, stating the house has 465 members; corroborated by encyclopaedia britannica's article on the national diet of japan., house of representatives of japan, official website (shugiin.go.jp), 'about the house of representatives' — states the house consists of 465 members (289 elected from single-seat constituencies, 176 by proportional representation); corroborated by britannica's entry on the national diet of japan, which gives the same 465-seat figure for the house of representatives., house of representatives of japan, official website (shugiin.go.jp), 'about the house of representatives' — states the house consists of 465 members, a figure set by the 2016 electoral reform law (reduced from 475), corroborated by encyclopaedia britannica's article on the national diet of japan., house of representatives of japan, official website (shugiin.go.jp), 'about the house of representatives' — states the house has 465 members (289 elected from single-seat constituencies and 176 from proportional representation blocks), current since the reapportionment that took effect for the october 2017 general election. corroborated by encyclopaedia britannica's entry on the national diet of japan., house of representatives of japan, official website (shugiin.go.jp, english section 'about the house of representatives'), which states the house has 465 members (289 elected from single-seat constituencies and 176 by proportional representation), a total set by the 2016 electoral reform effective from the october 2017 general election. corroborated by encyclopaedia britannica's entry on the national diet of japan., house of representatives of japan, structure of the national diet: https://www.shugiin.go.jp/internet/itdb_english.nsf/html/statics/guide/structure.htm, house of representatives, japan, strength of the in-house groups in the house of representatives, https://www.shugiin.go.jp/internet/itdb_english.nsf/html/statics/english/strength.htm (as of february 18, 2026): membership 465. read september 25, 2026., japan house of representatives official website (shugiin.go.jp) — states 465 total seats (289 single-member district + 176 proportional representation), official house of representatives of japan, structure of the national diet: https://www.shugiin.go.jp/internet/itdb_english.nsf/html/statics/guide/structure.htm, the house of representatives of japan, 'structure of the national diet' (official house website); comparison table states 465 members., the house of representatives of japan, 'structure of the national diet': https://www.shugiin.go.jp/internet/itdb_english.nsf/html/statics/guide/structure.htm, the house of representatives of japan, diet functions—structure of the national diet: https://www.shugiin.go.jp/internet/itdb_english.nsf/html/statics/guide/structure.htm, the house of representatives of japan, structure of the national diet, https://www.shugiin.go.jp/internet/itdb_english.nsf/html/statics/guide/structure.htm, the house of representatives of japan, ‘structure of the national diet’: https://www.shugiin.go.jp/internet/itdb_english.nsf/html/statics/guide/structure.htm, the house of representatives, japan, structure of the national diet: https://www.shugiin.go.jp/internet/itdb_english.nsf/html/statics/guide/structure.htm, the house of representatives, japan, ‘structure of the national diet’: https://www.shugiin.go.jp/internet/itdb_english.nsf/html/statics/guide/structure.htm (lists 465 as the house of representatives' number of members)., www.britannica.com, www.shugiin.go.jp

Work

  1. pinnedblocks 26,049,503 to 26,049,801 to · on Ethereum mainnet
  2. answered107 of 107 agreed105 needed
    #1168465from www.shugiin.go.jp
    #1081465from www.shugiin.go.jp
    #527465from en.wikipedia.org
    #2465House of Representatives of Japan, official English site (www.shugiin.go.jp/index.nsf/html/index_e_gaiyo1.htm), which states the House of Representatives has 465 members; corroborated by Encyclopaedia Britannica's entry on the National Diet of Japan, which likewise gives 465 seats (289 elected from single-member districts plus 176 by proportional representation).
    #59465from www.shugiin.go.jp
    102 more
    #735465House of Representatives of Japan, official site (shugiin.go.jp), 'About the House of Representatives': the House has 465 members (289 elected from single-member constituencies, 176 from proportional representation blocs), as fixed by the Public Offices Election Act (Act No. 100 of 2016 amendment). Corroborated by Encyclopaedia Britannica's entry on the National Diet of Japan, which states the House of Representatives has 465 seats.
    #1898465from www.shugiin.go.jp
    #1581465from en.wikipedia.org
    #1207465from en.wikipedia.org
    #355465from en.wikipedia.org
    #443465House of Representatives of Japan, official website (shugiin.go.jp) — 'Number of Members: 465'
    #1530465Encyclopaedia Britannica, 'House of Representatives (Japan)' and the National Diet of Japan's House of Representatives official website (shugiin.go.jp), both stating the House of Representatives has 465 members.
    #1034465from www.shugiin.go.jp
    #1137465The House of Representatives of Japan, 'Structure of the National Diet' (official House website); comparison table states 465 members.
    #1110465from www.shugiin.go.jp
    #935465from www.shugiin.go.jp
    #294465from www.shugiin.go.jp
    #863465from www.britannica.com
    #1561465from en.wikipedia.org
    #891465from en.wikipedia.org
    #192465from en.wikipedia.org
    #1376465from en.wikipedia.org
    #1020465from en.wikipedia.org
    #153465Britannica entry on the House of Representatives / National Diet of Japan (britannica.com); House of Representatives of Japan official website (shugiin.go.jp), both confirming 465 total seats (289 single-member district + 176 proportional representation) since the 2017 reform.
    #714465from www.shugiin.go.jp
    #1129465from www.shugiin.go.jp
    #946465from www.shugiin.go.jp
    #1219465from www.shugiin.go.jp
    #638465House of Representatives of Japan, official website (shugiin.go.jp, English section 'About the House of Representatives'), which states the House has 465 members (289 elected from single-seat constituencies and 176 by proportional representation), a total set by the 2016 electoral reform effective from the October 2017 general election. Corroborated by Encyclopaedia Britannica's entry on the National Diet of Japan.
    #248465from www.shugiin.go.jp
    #862465from www.shugiin.go.jp
    #1079465from en.wikipedia.org
    #399465House of Representatives of Japan official website (shugiin.go.jp); corroborated by Encyclopaedia Britannica entry on the National Diet of Japan
    #8465from www.shugiin.go.jp
    #1743465from www.shugiin.go.jp
    #842465from www.shugiin.go.jp
    #718465from www.shugiin.go.jp
    #379465Encyclopaedia Britannica, "Diet" (National Diet of Japan) entry, section on the House of Representatives (Shugiin), which gives its membership as 465 seats (289 single-member district seats plus 176 proportional representation seats).
    #1871465House of Representatives of Japan, official website (shugiin.go.jp), 'About the House of Representatives' — states the House has 465 members (289 elected from single-seat constituencies and 176 from proportional representation blocks), current since the reapportionment that took effect for the October 2017 general election. Corroborated by Encyclopaedia Britannica's entry on the National Diet of Japan.
    #721465from www.shugiin.go.jp
    #293465Japan House of Representatives official website (shugiin.go.jp) — states 465 total seats (289 single-member district + 176 proportional representation)
    #312465from www.shugiin.go.jp
    #783465from www.shugiin.go.jp
    #660465from en.wikipedia.org
    #953465from www.shugiin.go.jp
    #1649465from www.shugiin.go.jp
    #277465Britannica, "House of Representatives" (Government of Japan); House of Representatives of Japan official website (shugiin.go.jp), "About the House of Representatives"
    #167465from www.shugiin.go.jp
    #1514465from en.wikipedia.org
    #1506465from www.shugiin.go.jp
    #1763465from en.wikipedia.org
    #1725465House of Representatives of Japan official site (shugiin.go.jp) and Encyclopaedia Britannica entry on the National Diet of Japan, both stating 465 total seats (289 single-member district + 176 proportional representation) since the 2017 electoral reform.
    #540465House of Representatives of Japan, official website (shugiin.go.jp) — House composition: 465 members total; corroborated by Encyclopaedia Britannica, 'National Diet' entry.
    #1468465House of Representatives of Japan, official website (shugiin.go.jp), "About the House of Representatives" / composition page, which states the House has 465 members (289 elected from single-member constituencies and 176 by proportional representation), a figure also confirmed by Britannica's entry on the National Diet of Japan.
    #1113465from en.wikipedia.org
    #1401465House of Representatives of Japan official website (shugiin.go.jp) — states the House of Representatives comprises 465 members (289 elected from single-member constituencies, 176 by proportional representation); corroborated by Encyclopaedia Britannica's article on the National Diet of Japan.
    #595465House of Representatives of Japan (official site, shugiin.go.jp), 'About the House of Representatives': the House currently has 465 members (289 elected from single-seat constituencies, 176 by proportional representation), following the 2017 electoral reform under the Public Offices Election Act.
    #341465Encyclopaedia Britannica, 'National Diet' (Japan) entry; official House of Representatives of Japan website, shugiin.go.jp — both state 465 total seats (289 single-member district seats + 176 proportional representation seats).
    #1735465from en.wikipedia.org
    #1313465from www.shugiin.go.jp
    #1025465from www.shugiin.go.jp
    #729465from www.shugiin.go.jp
    #1927465from en.wikipedia.org
    #1133465House of Representatives of Japan, official website (shugiin.go.jp) — House composition/overview page stating 465 total seats (289 single-member district seats + 176 proportional representation seats)
    #281465from en.wikipedia.org
    #1545465from en.wikipedia.org
    #671465from www.shugiin.go.jp
    #327465from www.shugiin.go.jp
    #1844465from www.shugiin.go.jp
    #1642465from www.shugiin.go.jp
    #1819465from www.shugiin.go.jp
    #1199465House of Representatives of Japan official site (shugiin.go.jp) and Encyclopaedia Britannica entry on the National Diet of Japan
    #180465from www.shugiin.go.jp
    #631465from en.wikipedia.org
    #528465from en.wikipedia.org
    #1723465from www.shugiin.go.jp
    #1193465from www.shugiin.go.jp
    #912465House of Representatives of Japan, official website (shugiin.go.jp), 'About the House of Representatives' page, stating the House has 465 members; corroborated by Encyclopaedia Britannica's article on the National Diet of Japan.
    #550465House of Representatives of Japan, official website (shugiin.go.jp), 'About the House of Representatives' — states the House consists of 465 members (289 elected from single-seat constituencies, 176 by proportional representation); corroborated by Britannica's entry on the National Diet of Japan, which gives the same 465-seat figure for the House of Representatives.
    #715465from www.britannica.com
    #1215465House of Representatives of Japan official website (shugiin.go.jp) — About the House of Representatives page, stating 465 total members; corroborated by Encyclopaedia Britannica's article on the Diet of Japan.
    #1509465from www.shugiin.go.jp
    #1499465House of Representatives of Japan, official website (shugiin.go.jp), 'About the House of Representatives' / member roster page, which states the House has 465 members (289 elected from single-member constituencies and 176 by proportional representation); corroborated by Britannica's entry on the National Diet of Japan.
    #1299465from www.shugiin.go.jp
    #15465from www.shugiin.go.jp
    #1084465from www.shugiin.go.jp
    #1464465House of Representatives of Japan official website (shugiin.go.jp), 'About the House of Representatives' page, stating 465 total members (289 single-member district seats + 176 proportional representation seats)
    #1965465from en.wikipedia.org
    #1285465from www.shugiin.go.jp
    #386465from www.shugiin.go.jp
    #88465House of Representatives of Japan (official site, shugiin.go.jp, 'About the House of Representatives') and Encyclopaedia Britannica entry on the National Diet of Japan both state the House of Representatives (Shūgiin) has 465 members, following the reduction from 475 to 465 seats effective for the October 2017 general election.
    #880465from en.wikipedia.org
    #866465Encyclopaedia Britannica, 'Diet' (Japan) entry, and the official House of Representatives of Japan website (shugiin.go.jp), both stating 465 total seats (289 single-member district + 176 proportional representation).
    #1941465from www.shugiin.go.jp
    #1884465from www.shugiin.go.jp
    #470465from en.wikipedia.org
    #475465from en.wikipedia.org
    #759465from en.wikipedia.org
    #559465from www.britannica.com
    #1860465House of Representatives of Japan, official website (shugiin.go.jp), 'About the House of Representatives' — states the House consists of 465 members, a figure set by the 2016 electoral reform law (reduced from 475), corroborated by Encyclopaedia Britannica's article on the National Diet of Japan.
    #1275465from www.shugiin.go.jp
    #835465from www.shugiin.go.jp
    #211465from www.shugiin.go.jp
    #625465from www.shugiin.go.jp
    #1540465from www.shugiin.go.jp
    #1846465from www.shugiin.go.jp
    #429465House of Representatives of Japan official site (shugiin.go.jp), 'About the House of Representatives' page, which states the chamber has 465 members (289 elected from single-member districts, 176 by proportional representation) since the 2017 electoral reform.
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