City size comparison

compared to

Seattle is about 1.8 times bigger than Boston.

Boston is approximately 124 sq km, while Seattle is approximately 217 sq km, making Seattle 75% larger than Boston.
Tip: This to-scale comparison of Boston vs. Seattle uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Seattle vs. Boston
Flip Comparison · See true size
See Seattle on top of Boston
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Cost of Living Comparison · 7 categories - 2026 data
Boston is 0.5% cheaper than Seattle
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