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 40115 Custer Breckinridge County 270, 364
KY 40117 Ekron Meade County 270, 364
KY 40118 Fairdale Jefferson County 502
KY 40119 Falls Of Rough Grayson County 270, 364
KY 40121 Fort Knox Hardin County 270, 364, 502
KY 40122 Fort Knox Hardin County 502
KY 40129 Hillview Bullitt County 502
KY 40140 Garfield Breckinridge County 270, 364
KY 40142 Guston Meade County 270, 364
KY 40143 Hardinsburg Breckinridge 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.