South Mills is an unincorporated community and census-designated place (CDP) in Camden County, North Carolina, United States. As of the 2020 census, South Mills had a population of 362. South Mills has a post office with ZIP code 27976, which opened on March 2, 1840. The community is located near U.S. Route 17, and U.S. Route 17 Business and North Carolina Highway 343, and future Interstate 87 (North Carolina) pass through the community.
The community derived its name from a watermill which operated near the original town site.
The William Riley Abbott House, Dismal Swamp Canal, and Morgan House are listed on the National Register of Historic Places.
As of the 2020 United States census, there were 362 people, 181 households, and 139 families residing in the CDP.