Allendale County, South Carolina
Located in South Carolina, Allendale County has a population of 7,661 residents and a median age of 44.7 years, making it the #2,677 most populous county out of 3,222 nationwide. In terms of economic indicators, the county has a poverty rate of 28.2%. The median home value is $76,200, and the median household income is $32,328, which is 57% below the national median.
Demographics
Allendale County has a population of 7,661, making it the #2,677 most populous county in the US. The median age is 44.7 years, which is 14.9% above the national median.
Population Trend
Rankings →Year-over-Year Population Growth
Age & Sex Distribution
Race & Ethnicity
Nativity
Geographic Mobility (Past Year)
Economy
The median household income in Allendale County is $32,328, ranking #3,139 out of 3,222 counties — 57.0% below the national median. The poverty rate is 28.2% and unemployment stands at 8.5%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in Allendale County is $76,200 (-73.0% vs national). Renters pay a median of $662/mo and the homeownership rate is 61.7%.
Median Home Value Trend
Rankings →Household Type
Education
In Allendale County, 14.3% of adults age 25+ hold a bachelor's degree or higher, which is 57.7% below the national average, ranking #2,912 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in Allendale County is 69.5 years. 26.9% of adults report poor or fair health and 13.6% lack health insurance. Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
22.0% of adults in Allendale County smoke , 44.5% are obese , and 15.5% report excessive drinking.
Adult Smoking Trend
Safety
The homicide rate in Allendale County is 32.0 per 100,000 . Motor vehicle deaths occur at a rate of 40.4 per 100,000.
Homicide Rate Trend
Families & Children
44.6% of children in Allendale County live in poverty . The teen birth rate is 33.4 per 1,000 females age 15–19.
Teen Birth Rate Trend
Civic & Transportation
Voter turnout in Allendale County is 51.5%. The mean commute time is 38.8 min, which is 40.6% above the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, Allendale County voted Democratic with a margin of 44.7%. The vote was 71.6% Dem / 26.9% Rep. Compared to 2020, the margin shifted 7.7 toward Republicans .
Vote Share Over Time
About Allendale County, South Carolina
Allendale County, South Carolina has a total population of 7,661, making it the 2,677th most populous county in the United States. The median age in Allendale County is 44.7 years, which is 14.9% above the national median of 38.9 years.
The median household income in Allendale County is $32,328, which ranks #3,139 of 3,222 counties nationwide. This is 57.0% below the national median of $75,149. The poverty rate is 28.2%, higher than the national rate of 12.6%. The unemployment rate stands at 8.5%.
The median home value in Allendale County is $76,200, 73.0% below the national median. Renters in Allendale County pay a median gross rent of $662 per month. The homeownership rate is 61.7%, compared to the national rate of 64.4%.
In Allendale County, 14.3% of residents aged 25 and older hold a bachelor's degree or higher, 57.7% below the national average of 33.7%. Health insurance coverage stands at 87.9% of the population. The average commute time for workers is 38.8 min.
Allendale County is a diverse community. The largest racial or ethnic group is Black (non-Hispanic) at 66.3% of the population, followed by White (non-Hispanic) (22.8%) and Hispanic or Latino (7.6%).
All data for Allendale County, South Carolina comes from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates. These figures are estimates based on survey sampling and are subject to margin of error. For the most detailed and up-to-date data, visit the Census Bureau's official data portal.