There are 6 zip codes in Marion County, South Carolina. The most populated is 29571, located in Marion. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
2957114,147Marion
295749,842Mullins
295462,615Gresham
29592661Sellers
29519279Centenary
2958957Rains

Zip Codes in Marion County, South Carolina by Population (2024)