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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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Charleston County ZIP Codes

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

County State ZIP Code City Area Codes
Charleston County SC 29426 Adams Run 843, 854
Charleston County SC 29429 Awendaw 843, 854
Charleston County SC 29438 Edisto Island 843, 854
Charleston County SC 29439 Folly Beach 843, 854
Charleston County SC 29449 Hollywood 843, 854
Charleston County SC 29451 Isle Of Palms 843, 854
Charleston County SC 29455 Johns Island 843, 854
Charleston County SC 29457 Johns Island 843
Charleston County SC 29458 Mc Clellanville 843, 854
Charleston County SC 29464 Mount Pleasant 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.