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 42171 Smiths Grove Warren County 270, 364
KY 42201 Aberdeen Butler County 270
KY 42202 Adairville Logan County 270, 364, 615, 629
KY 42204 Allensville Todd County 270, 364, 615, 629
KY 42206 Auburn Logan County 270, 364
KY 42207 Bee Spring Edmonson County 270, 364
KY 42210 Brownsville Edmonson County 270, 364
KY 42211 Cadiz Trigg County 270, 364, 931
KY 42214 Center Metcalfe County 270, 364
KY 42215 Cerulean Christian 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.