City size comparison

compared to

Saint Louis is about 1.3 times bigger than Boston.

Boston is approximately 124 sq km, while Saint Louis is approximately 160 sq km, making Saint Louis 29% larger than Boston.
Tip: This to-scale comparison of Boston vs. Saint Louis uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Saint Louis vs. Boston

Flip Comparison · See true size
See Saint Louis on top of Boston
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Cost of Living Comparison · 7 categories - 2026 data
Boston is 41.2% more expensive than Saint Louis
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