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
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State directory

Wyoming ZIP Codes

Complete postal directory, details, and geographic map for the State of Wyoming.

State ZIP Code City County Area Codes
WY 82310 Jeffrey City Fremont County 307
WY 82321 Baggs Carbon County 307, 970
WY 82322 Bairoil Sweetwater County 307
WY 82323 Dixon Carbon County 307, 970
WY 82324 Elk Mountain Carbon County 307
WY 82325 Encampment Carbon County 307, 970
WY 82327 Hanna Carbon County 307
WY 82329 Medicine Bow Carbon County 307
WY 82331 Saratoga Carbon County 307
WY 82332 Savery Carbon County 307, 970
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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.