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
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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 02130 Jamaica Plain Suffolk County 617, 857
MA 02131 Roslindale Suffolk County 617, 857
MA 02132 West Roxbury Suffolk County 339, 617, 781, 857
MA 02133 Boston Suffolk County 617, 857
MA 02134 Allston Suffolk County 617, 857
MA 02135 Brighton Suffolk County 617, 857
MA 02136 Hyde Park Suffolk County 339, 617, 781, 857
MA 02137 Readville Suffolk County 617
MA 02138 Cambridge Middlesex County 617, 857
MA 02139 Cambridge Middlesex County 617, 857
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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.