City size comparison

compared to

Boston is about 4.8 times smaller than Chicago.

Chicago is approximately 590 sq km, while Boston is approximately 124 sq km, making Boston 21.02% the size of Chicago.
Tip: This to-scale comparison of Chicago vs. Boston uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Boston vs. Chicago
Flip Comparison · See true size
See Boston on top of Chicago
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Cost of Living Comparison · 7 categories - 2026 data
Chicago is 5.7% cheaper than Boston
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