Allendale County's estimated 2026 population is 7,461 with a growth rate of -0.6% in the past year according to the most recent United States census data. Allendale County is the 46th largest county in South Carolina. The 2010 population was 10,354 and has seen a growth of -27.94% since that time.
Data after 2023 is projected based on recent change
The racial composition of Allendale County includes 63.98% Black or African American, 24.18% White, 4.19% Asian, 4.12% other race, and smaller percentages for Two or more races, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
Black or African American (63.98%)
White (24.18%)
Asian (4.19%)
Other race (4.12%)
Two or more races (2.27%)
Native American (1.15%)
Native Hawaiian or Pacific Islander (0.1%)
Race | Population | Percentage (of total) |
|---|---|---|
| Black or African American | 4,951 | 63.98% |
| White | 1,871 | 24.18% |
| Asian | 324 | 4.19% |
| Other race | 319 | 4.12% |
| Two or more races | 176 | 2.27% |
| Native American | 89 | 1.15% |
| Native Hawaiian or Pacific Islander | 8 | 0.1% |
Married
Widowed
Divorced
Separated
Never Married
Allendale County's average per capita income is $35,099. Household income levels show a median of $31,603. The poverty rate stands at 26.48%.
Name | Median | Mean |
|---|---|---|
| Married Families | $68,438 | - |
| Families | $52,257 | $75,476 |
| Households | $31,603 | $54,043 |
| Non Families | $19,199 | $27,121 |
Average Income
Median Household Income
Poverty Rate