Largest ZIP Code – Contiguous US

Largest ZIP

in Contiguous US

The largest ZIP Code in the contiguous U.S. is 89049, Tonopah, NV, at 10,821 square miles.

* | Tags: Fun facts Map facts USPS Fact #971 | April 15, 2024

Twenty-four of the top 25 largest ZIP Codes in the country are located in Alaska – ranging from the largest, 99734, at more than 30,000 square miles to 99741 at 7,600 square miles. The 14th spot goes to Nevada, 89049.