None of the households in Sumter County, SC reported speaking a non-English language at home as their primary shared language. This does not consider the potential multi-lingual nature of households, but only the primary self-reported language spoken by all members of the household.
98.7% of the residents in Sumter County, SC are U.S. citizens.
Sumter County, SC borders Calhoun County, SC, Clarendon County, SC, Florence County, SC, Kershaw County, SC, Lee County, SC, and Richland County, SC.