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London vs Athens

London is about 40× larger than Athens by administrative area. London (United Kingdom) covers 1,572 km² (607 mi²) with a population of 8.8 million, while Athens (Greece) covers 39 km² (15 mi²) with 643,452 residents.

Metric London Athens
Area 1,572 km² 39 km²
Area (mi²) 607 mi² 15 mi²
Population 8,799,728 643,452
Population density 5,598 /km² 16,499 /km²
Area ratioLondon is ~40× larger by area than Athens.

Frequently asked questions

Is London bigger than Athens?

Yes — London is about 40× larger by area: 1,572 km² vs 39 km².

How big is London?

London, United Kingdom, covers about 1,572 km² (607 mi²) of administrative area.

How big is Athens?

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

Which city has more people, London or Athens?

London has the larger population: 8.8 million vs 643,452. Population density is about 5,598 people/km² in London and 16,499 people/km² in Athens.

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City boundaries from OpenStreetMap. Last updated 2026-08-28.

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