Marion County, SC — Demographics & Population
Population, age distribution, race & ethnicity, and education data
Population Overview
Source: Census Bureau ACS (2023)Total Population
28,900
Male
13,434
46.5%
Female
15,466
53.5%
Median Age
43.0 yrs
Avg Household Size
2.4
Foreign Born
1.8%
Race & Ethnicity
Source: Census Bureau ACS (2023)Age Distribution
Source: Census Bureau ACS (2023)Education
Source: Census Bureau ACS (2023)Bachelor's or Higher9.6%
High School or Higher43.8%
Other Demographics
Source: Census Bureau ACS (2023)Veterans
4.6%
Disability
0.0%
Non-English Home
11.2%
Married
27.2%
Marion County, SC has a population of 28,900 according to 2023 Census Bureau estimates. The median age is 43.0 years. The largest racial or ethnic group is White at 38.5% of the population. 9.6% of residents hold a bachelor's degree or higher. 1.8% of residents are foreign-born.