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 01938 Ipswich Essex County 351, 978
MA 01940 Lynnfield Essex County 339, 351, 781, 978
MA 01944 Manchester Essex County 351, 978
MA 01945 Marblehead Essex County 339, 351, 781, 978
MA 01949 Middleton Essex County 339, 351, 781, 978
MA 01950 Newburyport Essex County 351, 978
MA 01951 Newbury Essex County 351, 978
MA 01952 Salisbury Essex County 351, 603, 978
MA 01960 Peabody Essex County 339, 351, 781, 978
MA 01961 Peabody Essex County 351
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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.