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 MA 01355 New Salem 351, 413, 978
Franklin County MA 01360 Northfield 351, 413, 603, 802, 978
Franklin County MA 01364 Orange 351, 413, 978
Franklin County MA 01367 Rowe 413, 802
Franklin County MA 01370 Shelburne Falls 413
Franklin County MA 01373 South Deerfield 413
Franklin County MA 01375 Sunderland 413
Franklin County MA 01376 Turners Falls 413
Franklin County MA 01378 Warwick 351, 413, 603, 978
Franklin County MA 01379 Wendell 351, 413, 978
Page 11 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.