City size comparison

compared to

San Mateo is around the same size as Naples.

Naples (map shows its 10 named neighbourhoods; the area covers the whole city) is approximately 32 sq km, while San Mateo is approximately 31 sq km, making San Mateo 98.63% the size of Naples.
Tip: This to-scale comparison of Naples 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. Naples

Flip Comparison · See true size
See San Mateo on top of Naples
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Cost of Living Comparison · 6 categories - 2026 data
Naples is 6.8% cheaper than San Mateo
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