Dalzell is a census-designated place (CDP) in Sumter County, South Carolina, United States. The population was 2,260 at the 2000 census. It is included in the Sumter, South Carolina Metropolitan Statistical Area.
Dalzell is located at 34°1′11″N 80°25′47″W / 34.01972°N 80.42972°W / 34.01972; -80.42972 (34.019811, -80.429780).
According to the United States Census Bureau, the CDP has a total area of 6.9 square miles (17.9 km²), of which, 6.8 square miles (17.7 km²) of it is land and 0.1 square miles (0.1 km²) of it (0.72%) is water.