City size comparison

compared to

Portland is about 1.6 times bigger than Boise.

Boise is approximately 221 sq km, while Portland is approximately 346 sq km, making Portland 57% larger than Boise.
Tip: This to-scale comparison of Boise vs. Portland uses the Mercator projection, which distorts the size of regions near the poles.
Share

Compare further: Portland vs. Boise

Flip Comparison · See true size
See Portland on top of Boise
→
Cost of Living Comparison · 7 categories - 2026 data
Boise is 20.3% cheaper than Portland
→
Our free app, MapSize by MyLifeElsewhere — compare any two places, to scale on your mobile device.
Download on the App Store GET IT ON Google Play