Dorchester County, South Carolina ZIP Codes

8 ZIP Codes

Zip Code
City
Population ↓
29483Summerville59,186
29485Summerville58,507
29420North Charleston23,959
29472Ridgeville12,722
29477Saint George7,176
29437Dorchester2,281
29448Harleyville1,997
29471Reevesville1,135

Overview of ZIP Codes in Dorchester County

ZCTAs are geographic areas created by the US Census Bureau to approximate the delivery areas of ZIP Codes for statistical analysis. While ZCTAs use the same five-digit codes as ZIP Codes, they represent defined geographic areas that may not exactly match the mail delivery routes of ZIP Codes.
8
ZIP Codes

The data shown reflect ZCTAs from the US Census. As of 2025, there are 8 ZCTAs in Dorchester County, South Carolina (US Census).

Sources

  1. US Census: 2025 Gazetteer Files
  2. US Census: ZIP Code Tabulation Areas (ZCTAs)

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