Sumter County's estimated 2026 population is 105,508 with a growth rate of 0.35% 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 -1.95% since that time.
Data after 2023 is projected based on recent change
The racial composition of Sumter County includes 46.2% Black or African American, 45.15% White, and smaller percentages for other race, Asian, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
Black or African American (46.2%)
White (45.15%)
Two or more races (5.06%)
Other race (1.63%)
Asian (1.51%)
Native American (0.37%)
Native Hawaiian or Pacific Islander (0.07%)
Race | Population | Percentage (of total) |
|---|---|---|
| Black or African American | 48,447 | 46.2% |
| White | 47,341 | 45.15% |
| Two or more races | 5,306 | 5.06% |
| Other race | 1,714 | 1.63% |
| Asian | 1,582 | 1.51% |
| Native American | 385 | 0.37% |
| Native Hawaiian or Pacific Islander | 78 | 0.07% |
Married
Widowed
Divorced
Separated
Never Married
Sumter County's average per capita income is $42,192. Household income levels show a median of $55,990. The poverty rate stands at 16.36%.
Name | Median | Mean |
|---|---|---|
| Married Families | $87,352 | $103,658 |
| Families | $69,653 | $86,812 |
| Households | $55,990 | $72,474 |
| Non Families | $29,535 | $43,356 |
Average Income
Median Household Income
Poverty Rate