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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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Worcester County ZIP Codes

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

County State ZIP Code City Area Codes
Worcester County MA 01532 Northborough 351, 508, 774, 978
Worcester County MA 01534 Northbridge 508, 774
Worcester County MA 01535 North Brookfield 508, 774
Worcester County MA 01536 North Grafton 508, 774
Worcester County MA 01537 North Oxford 508, 774
Worcester County MA 01538 North Uxbridge 508, 774
Worcester County MA 01540 Oxford 508, 774
Worcester County MA 01541 Princeton 351, 508, 774, 978
Worcester County MA 01542 Rochdale 508, 774
Worcester County MA 01543 Rutland 351, 508, 774, 978
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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.