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 42274 Rockfield Warren County 270, 364
KY 42275 Roundhill Butler County 270, 364
KY 42276 Russellville Logan County 270, 364
KY 42280 Sharon Grove Todd County 270, 364
KY 42283 South Union Logan County 270
KY 42285 Sweeden Edmonson County 270, 364
KY 42286 Trenton Todd County 270, 364, 931
KY 42287 Welchs Creek Butler County 270
KY 42288 Woodbury Butler County 270
KY 42301 Owensboro Daviess County 270, 364
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Geographic Map of Kentucky

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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.