City size comparison

compared to

San Mateo is about 41 times smaller than Rome.

Rome is approximately 1,287 sq km, while San Mateo is approximately 31 sq km, making San Mateo 2.44% the size of Rome.
Tip: This to-scale comparison of Rome vs. San Mateo uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: San Mateo vs. Rome

Flip Comparison · See true size
See San Mateo on top of Rome
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Cost of Living Comparison · 7 categories - 2026 data
Rome is 44.9% cheaper than San Mateo
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