City size comparison

compared to

Philadelphia is about 1.6 times bigger than Boise.

Boise is approximately 221 sq km, while Philadelphia is approximately 348 sq km, making Philadelphia 58% larger than Boise.
Tip: This to-scale comparison of Boise vs. Philadelphia uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Philadelphia vs. Boise

Flip Comparison · See true size
See Philadelphia on top of Boise
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Cost of Living Comparison · 7 categories - 2026 data
Boise is 14.6% cheaper than Philadelphia
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