City size comparison

compared to

San Mateo is about 28 times smaller than Dallas.

Dallas is approximately 880 sq km, while San Mateo is approximately 31 sq km, making San Mateo 3.57% the size of Dallas.
Tip: This to-scale comparison of Dallas 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. Dallas

Flip Comparison · See true size
See San Mateo on top of Dallas
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Cost of Living Comparison · 7 categories - 2026 data
Dallas is 8.6% cheaper than San Mateo
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