Costa Rica is about 38 times bigger than Phoenix.

Phoenix is approximately 1,342 sq km, while Costa Rica is approximately 51,100 sq km, making Costa Rica 3,707% larger than Phoenix.
Tip: This to-scale comparison of Phoenix vs. Costa Rica 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.