City size comparison

compared to

Winterthur is around the same size as Boulder.

Boulder is approximately 70 sq km, while Winterthur is approximately 68 sq km, making Winterthur 97.78% the size of Boulder.
Tip: This to-scale comparison of Boulder vs. Winterthur uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Winterthur vs. Boulder

Flip Comparison · See true size
See Winterthur on top of Boulder
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Cost of Living Comparison · 7 categories - 2026 data
Boulder is 27.5% cheaper than Winterthur
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