Rome vs San Francisco
Rome is about 2.1× larger than San Francisco by administrative area. Rome (Italy) covers 1,287 km² (497 mi²) with a population of 2.7 million, while San Francisco (United States) covers 601 km² (232 mi²) with 873,965 residents.
| Metric | Rome | San Francisco |
|---|---|---|
| Area | 1,287 km² | 601 km² |
| Area (mi²) | 497 mi² | 232 mi² |
| Population | 2,748,109 | 873,965 |
| Population density | 2,135 /km² | 1,455 /km² |
| Area ratio | Rome is ~2.1× larger by area than San Francisco. | |
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Both outlines are drawn at the same scale.
Frequently asked questions
Is Rome bigger than San Francisco?
Yes — Rome is about 2.1× larger by area: 1,287 km² vs 601 km².
How big is Rome?
Rome, Italy, covers about 1,287 km² (497 mi²) of administrative area.
How big is San Francisco?
San Francisco, United States, covers about 601 km² (232 mi²) of administrative area.
Which city has more people, Rome or San Francisco?
Rome has the larger population: 2.7 million vs 873,965. Population density is about 2,135 people/km² in Rome and 1,455 people/km² in San Francisco.
City boundaries from OpenStreetMap. Last updated 2026-10-18.
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