City size comparison

compared to

Saint Louis is about 10 times smaller than London.

London (including the 32 boroughs of greater London) is approximately 1,572 sq km, while Saint Louis is approximately 160 sq km, making Saint Louis 10.17% the size of London.
Tip: This to-scale comparison of London 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. London

Flip Comparison · See true size
See Saint Louis on top of London
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Cost of Living Comparison · 7 categories - 2026 data
London is 54.4% more expensive than Saint Louis
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