Barnwell County ZIP Codes

List of ZIP Codes in Barnwell County

The following table lists ZIP Codes associated with Barnwell County, South Carolina, based on ZIP Code Tabulation Area (ZCTA) data from the U.S. Census Bureau.

About Barnwell County ZIP Codes

Barnwell County in South Carolina (SC) is served by approximately 4 ZIP Codes. These codes cover residential neighborhoods, business districts, and rural areas that fall under the county's jurisdiction.

Based on ZIP-level population estimates, the total population covered by these ZIP Codes is around 21,400 people. Population and density values vary from one ZIP Code to another, reflecting the mix of dense urban communities and lower-density suburban or rural zones.

Many of the most significant population centers in Barnwell County are located in cities such as Barnwell, Williston, Blackville, Elko. These cities and towns help define the economic and demographic character of the county.

Most ZIP Codes in Barnwell County, South Carolina follow the America/New_York time zone.