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 02644 Forestdale Barnstable County 508, 774
MA 02645 Harwich Barnstable County 508, 774
MA 02646 Harwich Port Barnstable County 508, 774
MA 02647 Hyannis Port Barnstable County 508, 774
MA 02648 Marstons Mills Barnstable County 508, 774
MA 02649 Mashpee Barnstable County 508, 774
MA 02650 North Chatham Barnstable County 508, 774
MA 02651 North Eastham Barnstable County 508
MA 02652 North Truro Barnstable County 508, 774
MA 02653 Orleans Barnstable 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.