U.S. postal lookup

U.S. ZIP Codes Database 2026

Search by ZIP code, city, county, or state and find clear postal details with maps, time zones, and area code data.

42,735 verified records
All states and U.S. territories
Maps and coordinates
County directory

Fremont County ZIP Codes

Browse all ZIP Codes, cities, and associated area codes registered in Fremont County.

County State ZIP Code City Area Codes
Fremont County WY 82510 Arapahoe 307
Fremont County WY 82512 Crowheart 307
Fremont County WY 82513 Dubois 307
Fremont County WY 82514 Fort Washakie 307
Fremont County WY 82515 Hudson 307
Fremont County WY 82516 Kinnear 307
Fremont County WY 82520 Lander 307
Fremont County WY 82523 Pavillion 307
Fremont County WY 82524 Saint Stephens 307
Fremont County WY 82642 Lysite 307
Page 4 of 5

Geographic Map of Fremont County

Postal context

About U.S. ZIP Codes

ZIP codes are a United States Postal Service system introduced in 1963 to make mail routing more accurate and efficient. The standard format uses five digits, while ZIP+4 adds four more digits for a more precise delivery segment.

ZIP codes cover the United States, its territories, military mail routes, and other USPS delivery points. This directory organizes that data for practical lookup by ZIP code, city, county, and state.