Duncan, SC
Population 4,175 · South Carolina
About Duncan, SC
Duncan is a small community in South Carolina with a population of 4,175 residents. The median household income is $51,596 per year, which is near the national average. The median age in Duncan is 30.9 years.
Housing in Duncan has a median home value of $182,500 and median monthly rent of $1,045. Of the 1,758 total housing units, the majority are owner-occupied, with 881 owner-occupied and 795 renter-occupied units.
The unemployment rate in Duncan is 3.3% and the poverty rate is 17.1%. 34.0% of residents hold a bachelor's degree or higher. The average commute time is 26.5 minutes.
Cost of Living in Duncan, SC
Compared to national averages, Duncan has a median household income of $51,596 (31% below the national median of $75,149). Home values average $182,500, which is 25% below the national median. Monthly rent at $1,045 is 10% below the US average of $1,163. Within South Carolina, Duncan's income is 12% below the state average of $58,738, and home values are 10% below the state median of $202,187.
Why Live in Duncan, SC?
Duncan offers affordable housing with a median home value of $182,500, below the US average of $244,900, and rent that’s lower than the national average at $1,045/month, and a strong job market with an unemployment rate of just 3.3%. Additionally, the city features a well-educated community where 34.0% of residents hold a bachelor’s degree or higher.
Potential considerations include median household income ($51,596) that falls below the national average. However, Duncan’s smaller community size offers a quieter lifestyle and tight-knit neighborhoods.
Duncan has a population of 4,175 with a median age of 30.9 years. Compare Duncan with other cities to see how it stacks up, or explore all cities in South Carolina.
Similar Cities Near Duncan
Cities in South Carolina with a similar population size.
| City | Population | Median Income | Home Value | |
|---|---|---|---|---|
| Capitol View | 4,161 | $47,054 | $152,700 | Compare |
| Newport | 4,142 | $107,143 | $310,300 | Compare |
| East Camden | 4,210 | $53,234 | $150,400 | Compare |
| Saxon | 4,139 | $28,394 | $68,900 | Compare |
| Surfside Beach | 4,217 | $74,202 | $412,100 | Compare |
| Walhalla | 4,121 | $42,696 | $176,500 | Compare |
| Williamston | 4,116 | $62,500 | $156,700 | Compare |
| Brookdale | 4,061 | $34,279 | $85,400 | Compare |
Demographics
Racial & Ethnic Composition
Economy & Education
Housing
Other Cities in South Carolina
Data source: US Census Bureau ACS 5-Year Estimates. Last updated: 2026-04-05.
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Frequently Asked Questions about Duncan
What is the population of Duncan, SC?
The population of Duncan, SC is 4,175 according to the latest Census data.
What is the median household income in Duncan?
The median household income in Duncan, SC is $51,596 per year.
What is the median home value in Duncan?
The median home value in Duncan, SC is $182,500.
What is the average rent in Duncan?
The median monthly rent in Duncan, SC is $1,045.
What is the unemployment rate in Duncan?
The unemployment rate in Duncan, SC is 3.3%.