City size comparison

compared to

Rome is about 8 times bigger than Saint Louis.

Saint Louis is approximately 160 sq km, while Rome is approximately 1,287 sq km, making Rome 705% larger than Saint Louis.
Tip: This to-scale comparison of Saint Louis vs. Rome uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Rome vs. Saint Louis

Flip Comparison · See true size
See Rome on top of Saint Louis
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Cost of Living Comparison · 7 categories - 2026 data
Saint Louis is 33.1% more expensive than Rome
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