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
Maps and coordinates
County directory

Nelson County ZIP Codes

Browse all ZIP Codes, cities, and associated area codes registered in Nelson County.

County State ZIP Code City Area Codes
Nelson County KY 40004 Bardstown 502, 859
Nelson County KY 40008 Bloomfield 502, 859
Nelson County KY 40012 Chaplin 502, 859
Nelson County KY 40013 Coxs Creek 502
Nelson County KY 40020 Fairfield 502
Nelson County KY 40048 Nazareth 502
Nelson County KY 40051 New Haven 270, 364, 502
Nelson County KY 40052 New Hope 270, 364, 502
Nelson County KY 40107 Boston 270, 364, 502
Nelson County ND 58212 Aneta 701
Page 1 of 3

Geographic Map of Nelson County

Postal context

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.