Sumter County's estimated 2026 population is 105,346 with a growth rate of 0.27% in the past year according to the most recent United States census data. Sumter County is the 16th largest county in South Carolina. The 2010 population was 107,610 and has seen a growth of -2.1% since that time.
Data after 2023 is projected based on recent change
Overall: 38 years
Female: 39.7 years
Male: 34.6 years
There are 79,902 adults, (18,606 of whom are seniors) in Sumter County.
Female: 54,164 (51.7%)
Male: 50,561 (48.3%)
The racial composition of Sumter County includes 45.96% Black or African American, 44.86% White, and smaller percentages for other race, Asian, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| Black or African American | 48,127 | 45.96% |
| White | 46,981 | 44.86% |
| Two or more races | 5,326 | 5.09% |
| Other race | 2,022 | 1.93% |
| Asian | 1,553 | 1.48% |
| Native American | 568 | 0.54% |
| Native Hawaiian or Pacific Islander | 148 | 0.14% |
Sumter County's average per capita income is $43,956. Household income levels show a median of $56,693. The poverty rate stands at 16.56%.
Name | Median | Mean |
|---|---|---|
| Married Families | $90,715 | - |
| Families | $72,914 | $91,094 |
| Households | $56,693 | $74,835 |
| Non Families | $31,917 | $43,504 |
Average Income
Median Household Income
Poverty Rate