Japan

Bicameral legislature. The House of Representatives uses a parallel system: 289 single-member districts and 176 proportional representation seats. The Liberal Democratic Party has dominated since 1955.

Turnout shown is the share of registered voters, February 2026 House of Representatives election. Figures are curated from official election commission reports and International IDEA, and the year shows which election they refer to. See how Japan ranks in the turnout table, read how each voting system works, or compare all countries.