San Francisco vs Athens
San Francisco is about 15× larger than Athens by administrative area. San Francisco (United States) covers 601 km² (232 mi²) with a population of 873,965, while Athens (Greece) covers 39 km² (15 mi²) with 643,452 residents.
| Metric | San Francisco | Athens |
|---|---|---|
| Area | 601 km² | 39 km² |
| Area (mi²) | 232 mi² | 15 mi² |
| Population | 873,965 | 643,452 |
| Population density | 1,455 /km² | 16,499 /km² |
| Area ratio | San Francisco is ~15× larger by area than Athens. | |
Frequently asked questions
Is San Francisco bigger than Athens?
Yes — San Francisco is about 15× larger by area: 601 km² vs 39 km².
How big is San Francisco?
San Francisco, United States, covers about 601 km² (232 mi²) of administrative area.
How big is Athens?
Athens, Greece, covers about 39 km² (15 mi²) of administrative area.
Which city has more people, San Francisco or Athens?
San Francisco has the larger population: 873,965 vs 643,452. Population density is about 1,455 people/km² in San Francisco and 16,499 people/km² in Athens.
City boundaries from OpenStreetMap. Last updated 2026-08-18.
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