Seattle is about 3 times bigger than Bellingham.

Bellingham (map shows its 21 named neighbourhoods; the area covers the whole city) is approximately 73 sq km, while Seattle is approximately 217 sq km, making Seattle 198% larger than Bellingham.
Tip: This to-scale comparison of Bellingham vs. Seattle uses the Mercator projection, which distorts the size of regions near the poles.
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