City size comparison

compared to

Boulder is about 11 times smaller than New York City.

New York City (including all five boroughs: Manhattan, Brooklyn, Queens, The Bronx, and Staten Island) is approximately 781 sq km, while Boulder is approximately 70 sq km, making Boulder 8.91% the size of New York City.
Tip: This to-scale comparison of New York City vs. Boulder uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Boulder vs. New York City

Flip Comparison · See true size
See Boulder on top of New York City
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Cost of Living Comparison · 7 categories - 2026 data
New York City is 38.3% more expensive than Boulder
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