From a total population of 107,782, Sumter County has a median age of 35.6. The average age of males, in Sumter County, is 33.3 while the average age of females is 37.8. When you compare this to median age of South Carolina, Sumter County is 2.7 years younger.
The median income of individuals, in Sumter County, is $20,395 while the average household income is $40,662. When comparing the median income of people living in Sumter County to the rest of South Carolina, the average income in Sumter County is $3,827 less.