City size comparison

compared to

Sydney is about 6 times smaller than Saint Louis.

Saint Louis is approximately 160 sq km, while Sydney is approximately 27 sq km, making Sydney 16.7% the size of Saint Louis.
Tip: This to-scale comparison of Saint Louis vs. Sydney uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Sydney vs. Saint Louis

Flip Comparison · See true size
See Sydney on top of Saint Louis
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Cost of Living Comparison · 7 categories - 2026 data
Saint Louis is 5.2% cheaper than Sydney
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