Anshan
191 km²
Seoul
2,282 km²
City Map Compare/Anshan vs Seoulvs
vs
5 km
Seoul covers 2,282 km² of contiguous built-up land, 12× the built-up area of Anshan (191 km²).
| Anshan | Seoul | |
|---|---|---|
| Urban area | Anshan | Seoul |
| Population (2025) | 1.50 million | 22.3 million |
| Built-up area | 191 km² | 2,282 km² |
| Density | 7,831 /km² | 9,755 /km² |
Urban area = contiguous built-up land and the people living in it in 2025, drawn the same way for every city regardless of administrative boundaries. Source: GHSL Urban Centre Database R2024A, European Commission, Joint Research Centre (CC BY 4.0); some names adjusted to the city names people use, and country attribution follows the dataset.