McCormick County's 2026 population is estimated at 10,377, reflecting a 1.94% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). McCormick County is the 45th largest county in South Carolina. The 2010 population was 10,210 and has grown 1.64% since 2010.
Data after 2023 is projected based on recent change
Overall: 59.5 years
Female: 62.4 years
Male: 56.8 years
There are 8,768 adults, (3,852 of whom are seniors) in McCormick County.
Female: 4,583 (47%)
Male: 5,177 (53%)
The racial composition of McCormick County includes 56.12% White, 40.09% Black or African American, and smaller percentages for Two or more races, other race, Asian, Native Hawaiian or Pacific Islander, Native American and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 5,477 | 56.12% |
| Black or African American | 3,913 | 40.09% |
| Two or more races | 276 | 2.83% |
| Other race | 64 | 0.66% |
| Asian | 16 | 0.16% |
| Native Hawaiian or Pacific Islander | 10 | 0.1% |
| Native American | 4 | 0.04% |
McCormick County 's average per capita income is $41,477. Household income levels show a median of $55,798. The poverty rate stands at 17.61%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $85,673 | - |
| Families | $79,438 | $90,656 |
| Households | $55,798 | $73,480 |
| Non Families | $36,424 | $40,652 |
Average Income
Median Household Income
Poverty Rate