City size comparison

compared to

Austin is about 12 times bigger than Boulder.

Boulder is approximately 70 sq km, while Austin (map shows its 70 named neighbourhoods; the area covers the whole city) is approximately 829 sq km, making Austin 1,090% larger than Boulder.
Tip: This to-scale comparison of Boulder vs. Austin uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Austin vs. Boulder

Flip Comparison · See true size
See Austin on top of Boulder
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Cost of Living Comparison · 7 categories - 2026 data
Boulder is 14.8% more expensive than Austin
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