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

Franklin County ZIP Codes

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

County State ZIP Code City Area Codes
Franklin County NE 68939 Franklin 308, 402, 531, 785
Franklin County NE 68947 Hildreth 308
Franklin County NE 68960 Naponee 308, 785
Franklin County NE 68972 Riverton 308, 402, 531, 785
Franklin County NE 68981 Upland 308, 402, 531
Franklin County NY 12914 Bombay 315, 518, 680, 838
Franklin County NY 12915 Brainardsville 518, 838
Franklin County NY 12916 Brushton 518, 838
Franklin County NY 12917 Burke 354, 450, 518, 579, 838
Franklin County NY 12920 Chateaugay 354, 450, 518, 579, 838
Page 17 of 34

Geographic Map of Franklin 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.