INI
Types of Electoral Districts - INI
Types of electoral districts are important elements in Japan's election system. Various electoral district systems exist, including single-member district system, multi-member district system, medium-sized district system, and proportional representation system, each with different characteristics and advantages/disadvantages. The House of Representatives adopts a parallel voting system combining single-member districts and proportional representation, while the House of Councillors combines district-based and proportional representation systems. These systems form the foundation of Japan's democracy.
election system
single-member district
proportional representation
multi-member district
medium-sized district
House of Representatives
House of Councillors
politics
[item.single-member-district]
code=01
slug=single-member-district
name=Single-member District System
description=A system where one representative is elected from each electoral district.
application=House of Representatives single-member districts
districtCount=289
[item.multi-member-district]
code=02
slug=multi-member-district
name=Multi-member District System
description=A system where multiple representatives (6 or more) are elected from each electoral district.
application=House of Councillors electoral districts (6 or more seats)
districtCount=13
[item.medium-sized-district]
code=03
slug=medium-sized-district
name=Medium-sized District System
description=A system where 2 to 6 representatives are elected from each electoral district.
application=House of Councillors electoral districts (2 seats)
districtCount=32
[item.proportional-representation]
code=04
slug=proportional-representation
name=Proportional Representation System
description=An electoral system where seats are allocated according to vote share.
application=House of Representatives proportional representation (11 blocks), House of Councillors proportional representation (1 national district)
districtCount=11
[item.combined-district]
code=05
slug=combined-district
name=Combined District
description=An electoral district established by combining two or more prefectures.
application=House of Councillors electoral districts (Tottori-Shimane, Tokushima-Kochi)
districtCount=2