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 02537 East Sandwich Barnstable County 508, 774
MA 02538 East Wareham Plymouth County 508, 774
MA 02539 Edgartown Dukes County 508, 774
MA 02540 Falmouth Barnstable County 508, 774
MA 02541 Falmouth Barnstable County 508
MA 02542 Buzzards Bay Barnstable County 508, 774
MA 02543 Woods Hole Barnstable County 508, 774
MA 02552 Menemsha Dukes County 508, 774
MA 02553 Monument Beach Barnstable County 508, 774
MA 02554 Nantucket Nantucket 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.