New Orleans is about 2 times bigger than Boise.

Boise is approximately 221 sq km, while New Orleans is approximately 439 sq km, making New Orleans 99% larger than Boise.
Tip: This to-scale comparison of Boise vs. New Orleans uses the Mercator projection, which distorts the size of regions near the poles.
Our free app, MapSize by MyLifeElsewhere — compare any two places, to scale on your mobile device.