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
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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 42726 Clarkson Grayson County 270, 364
KY 42728 Columbia Adair County 270, 364, 606
KY 42729 Cub Run Hart County 270, 364
KY 42731 Dubre Cumberland County 270, 364
KY 42732 Eastview Hardin County 270, 364
KY 42733 Elk Horn Taylor County 270, 364, 606
KY 42740 Glendale Hardin County 270, 364
KY 42741 Glens Fork Adair County 270, 364
KY 42742 Gradyville Adair County 270, 364
KY 42743 Greensburg Green County 270, 364
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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.