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
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State directory

Massachusetts ZIP Codes

Complete postal directory, details, and geographic map for the State of Massachusetts.

State ZIP Code City County Area Codes
MA 01360 Northfield Franklin County 351, 413, 603, 802, 978
MA 01364 Orange Franklin County 351, 413, 978
MA 01366 Petersham Worcester County 351, 413, 978
MA 01367 Rowe Franklin County 413, 802
MA 01368 Royalston Worcester County 351, 603, 978
MA 01370 Shelburne Falls Franklin County 413
MA 01373 South Deerfield Franklin County 413
MA 01375 Sunderland Franklin County 413
MA 01376 Turners Falls Franklin County 413
MA 01378 Warwick Franklin County 351, 413, 603, 978
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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.