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Republic of Korea · Asia
Seoul
22,490,000UN harmonized urban-centre estimate · 2025
Read this number correctly
A comparable urban footprint—not a live city counter.
The UN uses a harmonized spatial method so cities can be compared across national boundary systems. This total may differ from a municipal “city proper” or a broader metropolitan-area figure.
SourceUN WUP 2025UN DESA Population Division
Reference year2025Official estimate
GeographyUrban centreDegree of Urbanization
MethodComparableRead methodology →