Overview

Types of Elections in Japan

Elections in Japan are broadly classified into national elections (House of Representatives general elections, House of Councillors regular elections) and local elections (prefectural governor and assembly member elections, municipal mayor and assembly member elections). Additionally, there are unified local elections held on scheduled dates and special elections such as by-elections when vacancies occur. These elections are conducted based on the Constitution of Japan and the Public Offices Election Law, serving as important institutions that guarantee citizens' right to participate in government.

elections national elections local elections House of Representatives House of Councillors electoral system politics democracy
code slug name description canBeDissolved category termYears totalSeats
01 house-of-representatives House of Representatives General Election National election to elect members of the House of Representatives, the lower house of Japan's National Diet. true national 4 465
02 house-of-councillors House of Councillors Regular Election National election to elect members of the House of Councillors, the upper house of Japan's National Diet. false national 6 248
03 prefectural-governor Prefectural Governor Election Local election to elect the prefectural governor, the chief executive of a prefecture. false local 4
04 prefectural-assembly Prefectural Assembly Member Election Local election to elect members of the prefectural assembly, the deliberative body of a prefecture. true local 4
05 municipal-mayor Municipal Mayor Election Local election to elect the municipal mayor, the chief executive of a city, ward, town, or village. false local 4
06 municipal-assembly Municipal Assembly Member Election Local election to elect members of the municipal assembly, the deliberative body of a city, ward, town, or village. true local 4
07 by-election By-election Special election held when a vacancy occurs in a parliamentary or assembly seat. false special
08 re-election Re-election Special election held when an elected candidate dies or becomes ineligible before taking office. false special

Classification of national and local elections in Japan's electoral system.