What countries border South Korea?
South Korea borders exactly one country: North Korea.
Part of the Eastern Asia group in the country borders atlas.
🧭 Longest journey: starting from South Korea, the farthest country you can
reach without a sea crossing is Lesotho
— 14 border crossings away.
📏 Closest country by distance: North Korea — about 336 km (great-circle distance between country centers, coordinates from mledoze/countries).
Countries near South Korea
The closest countries to South Korea that don't share a land border:
Why it matters in Bordlr
Every Bordlr puzzle is built on this border graph: you connect two regions by naming the chain of neighbors between them. Knowing South Korea's neighbor cold makes it a much faster link in any chain.
Bordlr is a free daily geography game: connect two regions through the lands that border them, in as few countries and as few kilometers as you can.
Play Bordlr — free