City size comparison

compared to

San Mateo is about 3.4 times smaller than Paris.

Paris is approximately 105 sq km, while San Mateo is approximately 31 sq km, making San Mateo 29.82% the size of Paris.
Tip: This to-scale comparison of Paris 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. Paris

Flip Comparison · See true size
See San Mateo on top of Paris
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Cost of Living Comparison · 7 categories - 2026 data
Paris is 4.8% more expensive than San Mateo
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