City size comparison

compared to

San Antonio is around the same size as Rio De Janeiro.

Rio De Janeiro is approximately 1,221 sq km, while San Antonio (map shows its 401 named neighbourhoods; the area covers the whole city) is approximately 1,292 sq km, making San Antonio 6% larger than Rio De Janeiro.
Tip: This to-scale comparison of Rio De Janeiro vs. San Antonio uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: San Antonio vs. Rio De Janeiro

Flip Comparison · See true size
See San Antonio on top of Rio De Janeiro
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Cost of Living Comparison · 7 categories - 2026 data
Rio De Janeiro is 39.9% cheaper than San Antonio
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