City size comparison

compared to

San Mateo is about 202 times smaller than Shanghai.

Shanghai is approximately 6,341 sq km, while San Mateo is approximately 31 sq km, making San Mateo 0.5% the size of Shanghai.
Tip: This to-scale comparison of Shanghai 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. Shanghai

Flip Comparison · See true size
See San Mateo on top of Shanghai
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Cost of Living Comparison · 7 categories - 2026 data
Shanghai is 64.4% cheaper than San Mateo
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