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 02322 Avon Norfolk County 339, 508, 774, 781
MA 02324 Bridgewater Plymouth County 339, 508, 774, 781
MA 02325 Bridgewater Plymouth County 508, 774
MA 02327 Bryantville Plymouth County 339, 781
MA 02330 Carver Plymouth County 339, 508, 774, 781
MA 02331 Duxbury Plymouth County 339
MA 02332 Duxbury Plymouth County 339, 508, 774, 781
MA 02333 East Bridgewater Plymouth County 339, 508, 774, 781
MA 02334 Easton Bristol County 508
MA 02337 Elmwood Plymouth County 508, 774
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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.