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

Kentucky ZIP Codes

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

State	ZIP Code	City	County	Area Codes
KY	41091	Union	Boone County	`859`
KY	41092	Verona	Boone County	`859`
KY	41093	Wallingford	Fleming County	`606`
KY	41094	Walton	Boone County	`859`
KY	41095	Warsaw	Gallatin County	`859`
KY	41096	Washington	Mason County	`606`
KY	41097	Williamstown	Grant County	`502, 859`
KY	41098	Worthville	Owen County	`502`
KY	41099	Newport	Campbell County	`859`
KY	41101	Ashland	Boyd County	`606`

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Geographic Map of Kentucky

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.