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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.

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Barnstable County ZIP Codes

Browse all ZIP Codes, cities, and associated area codes registered in Barnstable County.

County State ZIP Code City Area Codes
Barnstable County MA 02668 West Barnstable 508, 774
Barnstable County MA 02669 West Chatham 508
Barnstable County MA 02670 West Dennis 508, 774
Barnstable County MA 02671 West Harwich 508, 774
Barnstable County MA 02672 West Hyannisport 508, 774
Barnstable County MA 02673 West Yarmouth 508, 774
Barnstable County MA 02675 Yarmouth Port 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.