City size comparison

compared to

San Mateo is about 13 times smaller than Vienna.

Vienna is approximately 415 sq km, while San Mateo is approximately 31 sq km, making San Mateo 7.58% the size of Vienna.
Tip: This to-scale comparison of Vienna 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. Vienna

Flip Comparison · See true size
See San Mateo on top of Vienna
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Cost of Living Comparison · 6 categories - 2026 data
Vienna is 39.0% cheaper than San Mateo
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