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 42302 Owensboro Daviess County 270
KY 42303 Owensboro Daviess County 270, 364
KY 42304 Owensboro Daviess County 270
KY 42320 Beaver Dam Ohio County 270, 364
KY 42321 Beech Creek Muhlenberg County 270, 364
KY 42322 Beech Grove McLean County 270, 364
KY 42323 Beechmont Muhlenberg County 270, 364
KY 42324 Belton Muhlenberg County 270, 364
KY 42325 Bremen Muhlenberg County 270, 364
KY 42326 Browder Muhlenberg 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.