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 02668 West Barnstable Barnstable County 508, 774
MA 02669 West Chatham Barnstable County 508
MA 02670 West Dennis Barnstable County 508, 774
MA 02671 West Harwich Barnstable County 508, 774
MA 02672 West Hyannisport Barnstable County 508, 774
MA 02673 West Yarmouth Barnstable County 508, 774
MA 02675 Yarmouth Port Barnstable County 508, 774
MA 02702 Assonet Bristol County 508, 774
MA 02703 Attleboro Bristol County 401, 508, 774
MA 02712 Chartley Bristol County 508
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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.