City size comparison

compared to

San Mateo is about 13 times smaller than Athens.

Athens (map shows its 34 named neighbourhoods; the area covers the whole city) is approximately 412 sq km, while San Mateo is approximately 31 sq km, making San Mateo 7.63% the size of Athens.
Tip: This to-scale comparison of Athens 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. Athens

Flip Comparison · See true size
See San Mateo on top of Athens
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Cost of Living Comparison · 7 categories - 2026 data
Athens is 53.4% cheaper than San Mateo
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