Barnwell County, South Carolina

Barnwell County is a county in South Carolina with an estimated population of 20,447 in 2023. 5 cities, towns and Census places in it are indexed here.

Largest places in Barnwell County

About Barnwell County

Barnwell County is one of the counties of South Carolina. County governments in South Carolina handle local services such as courts, property records and elections; cities and towns inside the county run their own municipal services. Population figures come from the Census Bureau's Vintage 2023 estimates, which are updated annually.