Demographics in Duncan, SC
Population, age, race, ethnicity, and household statistics — 2023 ACS Data
Where is Duncan?
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Population
Source: U.S. Census Bureau ACS (2023)Total Population
4,175
Male
2,079
49.8%
Female
2,096
50.2%
Median Age
30.9
Race & Ethnicity
Source: U.S. Census Bureau ACS (2023)White55.9%
Black40.6%
Hispanic7.8%
Two or More2.3%
Other1.1%
Education & Household
Source: U.S. Census Bureau ACS (2023)Bachelor's or Higher
22.7%
High School or Higher
40.6%
Foreign Born
7.1%
Veterans
3.2%
Married
30.1%
Avg Household Size
2.5
Marital Status by Age
Source: U.S. Census Bureau ACS (2023)Duncan, SC has a population of 4,175 with a median age of 30.9. The racial makeup is 55.9% White, 7.8% Hispanic, 40.6% Black. About 22.7% of residents hold a bachelor's degree or higher. The foreign-born population is 7.1%.