Compare City Sizes

Belgrade vs Athens

Belgrade is about 9.2× larger than Athens by administrative area. Belgrade (Serbia) covers 360 km² (139 mi²) with a population of 1.2 million, while Athens (Greece) covers 39 km² (15 mi²) with 643,452 residents.

Metric Belgrade Athens
Area 360 km² 39 km²
Area (mi²) 139 mi² 15 mi²
Population 1,197,714 643,452
Population density 3,327 /km² 16,499 /km²
Area ratioBelgrade is ~9.2× larger by area than Athens.

Frequently asked questions

Is Belgrade bigger than Athens?

Yes — Belgrade is about 9.2× larger by area: 360 km² vs 39 km².

How big is Belgrade?

Belgrade, Serbia, covers about 360 km² (139 mi²) of administrative area.

How big is Athens?

Athens, Greece, covers about 39 km² (15 mi²) of administrative area.

Which city has more people, Belgrade or Athens?

Belgrade has the larger population: 1.2 million vs 643,452. Population density is about 3,327 people/km² in Belgrade and 16,499 people/km² in Athens.

City boundaries from OpenStreetMap. Last updated 2026-08-14.

Compare other cities on the map