Barnwell County, SC — Demographics & Population
Population, age distribution, race & ethnicity, and education data
Population Overview
Source: Census Bureau ACS (2023)Total Population
20,565
Male
9,956
48.4%
Female
10,609
51.6%
Median Age
40.7 yrs
Avg Household Size
2.5
Foreign Born
2.4%
Race & Ethnicity
Source: Census Bureau ACS (2023)Age Distribution
Source: Census Bureau ACS (2023)Education
Source: Census Bureau ACS (2023)Bachelor's or Higher8.7%
High School or Higher36.1%
Other Demographics
Source: Census Bureau ACS (2023)Veterans
5.2%
Disability
0.0%
Non-English Home
13.0%
Married
34.6%
Barnwell County, SC has a population of 20,565 according to 2023 Census Bureau estimates. The median age is 40.7 years. The largest racial or ethnic group is White at 52.2% of the population. 8.7% of residents hold a bachelor's degree or higher. 2.4% of residents are foreign-born.