Helsinki
381 km²
Tallinn
121 km²
City Map Compare/Helsinki vs Tallinnvs
vs
2 km
Helsinki covers 381 km² of contiguous built-up land, 3.1× the built-up area of Tallinn (121 km²).
| Helsinki | Tallinn | |
|---|---|---|
| Urban area | Helsinki | Tallinn |
| Population (2025) | 1.00 million | 449,861 |
| Built-up area | 381 km² | 121 km² |
| Density | 2,628 /km² | 3,718 /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.