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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Massachusetts ZIP Codes

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

State ZIP Code City County Area Codes
MA 01752 Marlborough Middlesex County 351, 508, 774, 978
MA 01754 Maynard Middlesex County 351, 978
MA 01756 Mendon Worcester County 508, 774
MA 01757 Milford Worcester County 508, 774
MA 01760 Natick Middlesex County 508, 774
MA 01770 Sherborn Middlesex County 508, 774
MA 01772 Southborough Worcester County 508, 774
MA 01773 Lincoln Middlesex County 339, 351, 508, 774, 781, 978
MA 01775 Stow Middlesex County 351, 978
MA 01776 Sudbury Middlesex County 339, 351, 508, 774, 781, 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.