In 2020, Allendale County, SC had a population of 8.79k people with a median age of 44.7 and a median household income of $26,074. Between 2019 and 2020 the population of Allendale County, SC declined from 9,024 to 8,789, a −2.6% decrease and its median household income declined from $27,185 to $26,074, a −4.09% decrease.
The 5 largest ethnic groups in Allendale County, SC are Black or African American (Non-Hispanic) (73%), White (Non-Hispanic) (22%), Other (Hispanic) (2.2%), White (Hispanic) (0.899%), and Two+ (Non-Hispanic) (0.819%).
None of the households in Allendale County, SC reported speaking a non-English language at home as their primary shared language. This does not consider the potential multi-lingual nature of households, but only the primary self-reported language spoken by all members of the household.
98.4% of the residents in Allendale County, SC are U.S. citizens.
The largest universities in Allendale County, SC are University of South Carolina-Salkehatchie (134 degrees awarded in 2020).
In 2020, the median property value in Allendale County, SC was $47,100, and the homeownership rate was 68.5%. Most people in Allendale County, SC drove alone to work, and the average commute time was 31.5 minutes. The average car ownership in Allendale County, SC was 2 cars per household.