House of Councillors The is the upper house of the National Diet of Japan. The House of Representatives (Japan), House of Representatives is the lower house. The House of Councillors is the successor to the pre-war House of Peers (Japan), House of Peers. If the t ...

elections were held in

Japan Japan is an island country in East Asia. Located in the Pacific Ocean off the northeast coast of the Asia, Asian mainland, it is bordered on the west by the Sea of Japan and extends from the Sea of Okhotsk in the north to the East China Sea ...

on 21 July 2019 to elect 124 of the 245 members of the

upper house An upper house is one of two Legislative chamber, chambers of a bicameralism, bicameral legislature, the other chamber being the lower house. The house formally designated as the upper house is usually smaller and often has more restricted p ...

of the

National Diet , transcription_name = ''Kokkai'' , legislature = 215th Session of the National Diet , coa_pic = Flag of Japan.svg , house_type = Bicameral , houses = , foundation=29 November 1890(), leader1_type ...

for a term of six years. 74 members were elected by

single non-transferable vote Single non-transferable vote or SNTV is a multi-winner electoral system in which each voter casts a single vote. Being a semi-proportional variant of first-past-the-post voting, under SNTV small parties, as well as large parties, have a chance t ...

(SNTV)/

First-past-the-post First-past-the-post (FPTP)—also called choose-one, first-preference plurality (FPP), or simply plurality—is a single-winner voting rule. Voters mark one candidate as their favorite, or First-preference votes, first-preference, and the cand ...

(FPTP) voting in 45 multi- and single-member prefectural electoral districts. The nationwide district elected 50 members by D'Hondt proportional representation with optionally

open list Open list describes any variant of party-list proportional representation where voters have at least some influence on the order in which a Political party, party's candidates are elected. This is as opposed to closed list, in which party lists ...

s, the previous most open list system was modified in 2018 to give parties the option to prioritize certain candidates over the voters' preferences in the proportional election. The election saw Prime Minister Shinzo Abe's ruling coalition lose the two-thirds majority needed to enact constitutional reform. The Liberal Democratic Party also lost its majority in the House of Councillors, but the LDP maintained control of the House of Councillors with its junior coalition partner Komeito.

Background

The term of members elected in the 2013 regular election (including those elected in subsequent by-elections or as runners-up) was to end on 28 July 2019. Under the "Public Offices Election Act" ''(kōshoku-senkyo-hō)'', the regular election must be held within 30 days before that date, or under certain conditions if the Diet is in session or scheduled to open at that time, between 24 and 30 days after the closure of the session and thus potentially somewhat after the actual end of term. Going into the election, the Liberal Democratic Party and its coalition partner Komeito controlled a two-thirds super-majority of seats in the

House of Representatives House of Representatives is the name of legislative bodies in many countries and sub-national entities. In many countries, the House of Representatives is the lower house of a bicameral legislature, with the corresponding upper house often ...

but did not control a similar super-majority of seats in the House of Councillors, necessary to initiate amendments of the

Constitution of Japan The Constitution of Japan is the supreme law of Japan. Written primarily by American civilian officials during the occupation of Japan after World War II, it was adopted on 3 November 1946 and came into effect on 3 May 1947, succeeding the Meij ...

Pre-election composition

''(as of 15 March 2018)''House of Councillors
Members Strength of the Political Groups in the House
(only caucus totals and female members; full Japanese version partitioned by class/end of term and election segmen

In the class of members facing re-election, the ruling coalition of the Liberal Democratic Party (LDP),

Kōmeitō , formerly New Komeito (NKP) and commonly referred to as simply Komei, is a political party in Japan founded by the leader of Soka Gakkai, Daisaku Ikeda, in 1964. It is generally considered centrist and socially conservative. Since 2012, ...

and Party for Japanese Kokoro (PJK) had a combined 81 of 121 seats (as of March 2018). The governing coalition would have to lose 30 seats or more to forfeit its overall majority in the House of Councillors and face a technically divided Diet. However, as independents and minor opposition groups might be willing to support the government on a regular basis without inclusion in the cabinet, the losses required to face an actual divided Diet may have been much higher. If the Diet is divided after the election, the coalition's two-thirds majority in the House of Representatives can still override the House of Councillors and pass legislation, but certain Diet decisions, notably the approval of certain nominations by the cabinet such as public safety commission members or

Bank of Japan The is the central bank of Japan.Louis Frédéric, Nussbaum, Louis Frédéric. (2005). "Nihon Ginkō" in The bank is often called for short. It is headquartered in Nihonbashi, Chūō, Tokyo, Chūō, Tokyo. The said bank is a corporate entity ...

governor, would require the cooperation of at least part of the opposition or an expansion of the ruling coalition. Among the members facing re-election were House of Councillors President Chuichi Date (LDP,

Hokkaido is the list of islands of Japan by area, second-largest island of Japan and comprises the largest and northernmost prefectures of Japan, prefecture, making up its own list of regions of Japan, region. The Tsugaru Strait separates Hokkaidō fr ...

leader Natsuo Yamaguchi (K,

Tokyo Tokyo, officially the Tokyo Metropolis, is the capital of Japan, capital and List of cities in Japan, most populous city in Japan. With a population of over 14 million in the city proper in 2023, it is List of largest cities, one of the most ...

) and Minister of Economy, Trade and Industry Hiroshige Seko (LDP, Wakayama at-large district).

District reapportionment

The following districts saw a change in their representation within the House at this election. One set of reforms were introduced in 2012 and first took effect at the 2013 election. The districts below are affected by the 2015 reforms, which started to take effect in the 2016 election. In May 2018, the government announced that they are planning to introduce a revision into the Public Offices Election Law before the 2019 election. The proposed changes increased the number seats in the House by 6, 2 seats in the Saitama at-large district and 4 in the national PR block. As Saitama currently has the highest voters-to-councillor ratio, the increase would reduce its ratio gap with the least populous district (below the constitutional 3 to 1 limit). Meanwhile, the seat increase in the PR block is aimed to address the absence of representation of prefectures in the merged-prefecture districts (namely Tottori-Shimane and Tokushima-Kōchi) and popular discontent in those prefectures. The plan also introduced a ranking system for the PR lists. This essentially changed it from a most open list system into a less open list system, mirroring the one used in the

elections. To reduce the chance of the non-representation of a prefecture, candidates from prefectures not running in the merged districts were to be prioritised on the list. Under the plan, the new Saitama seat and two new PR seats were contested in 2019, while the other three would be contested in

2022 The year began with another wave in the COVID-19 pandemic, with SARS-CoV-2 Omicron variant, Omicron spreading rapidly and becoming the dominant variant of the SARS-CoV-2 virus worldwide. Tracking a decrease in cases and deaths, 2022 saw ...

Opinion polls

Proportional vote intention

Results

By constituency

Notes

References

{{Japanese elections

Japan House of Councillors House of Councillors (Japan) elections Japan House of Councillors election