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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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Dorchester County ZIP Codes

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

County State ZIP Code City Area Codes
Dorchester County MD 21669 Taylors Island 410, 443, 667
Dorchester County MD 21672 Toddville 410, 443, 667
Dorchester County MD 21675 Wingate 410, 443, 667
Dorchester County MD 21677 Woolford 410, 443, 667
Dorchester County MD 21835 Linkwood 410, 443, 667
Dorchester County MD 21869 Vienna 410, 443, 667
Dorchester County SC 29420 North Charleston 843, 854
Dorchester County SC 29437 Dorchester 803, 839, 843, 854
Dorchester County SC 29447 Grover 843
Dorchester County SC 29448 Harleyville 803, 839, 843, 854
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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.