South Korea will hold its ninth nationwide simultaneous local elections on June 3, marking the first nationwide electoral test since President Lee Jae Myung’s snap-election victory last year.

Voters will elect mayors and governors across 17 metropolitan and provincial jurisdictions, heads of 226 basic-level municipalities, and members of metropolitan and municipal councils, along with education superintendents.

The elections will also coincide with parliamentary by-elections in constituencies where National Assembly seats become vacant ahead of the vote between March 1, 2025 and April 30, 2026.

Korea Prohas compiled a timeline of key procedural milestones and political party nomination schedules based