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ZIP codes in Big Horn County, Wyoming

Big Horn County, Wyoming has 12 ZIP codes in this list, from 82410 to 82441. They cover 12 places, among them Basin, Burlington, Byron and Cowley.

The ZIP code areas of Big Horn County add up to about 1,860 square miles of land (4,818 sq km) as the Census Bureau draws them. The largest is 82431 (Lovell), with 480 square miles.

Using these codes

Places and counties: GeoNames. Areas: U.S. Census Bureau, 2024 ZIP Code Tabulation Areas. Checked in November 2026. This site is not connected with the United States Postal Service; for mailing, confirm the address with USPS.

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