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	82334	Sinclair	Carbon County	`307`
WY	82335	Walcott	Carbon County	`307`
WY	82336	Wamsutter	Sweetwater County	`307`
WY	82401	Worland	Washakie County	`307`
WY	82410	Basin	Big Horn County	`307`
WY	82411	Burlington	Big Horn County	`307`
WY	82412	Byron	Big Horn County	`307`
WY	82414	Cody	Park County	`307, 406`
WY	82420	Cowley	Big Horn County	`307`
WY	82421	Deaver	Big Horn County	`307`

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Geographic Map of Wyoming

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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.