Population 16,359 · Census ACS 2020–24
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Median age by neighborhoodHistory and comparison ↓︎
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Population and households in Duncan
Household size in Duncan
| Period | Duncan | South Carolina | U.S. |
|---|---|---|---|
| 2006–10 | 2.59 | 2.54 | 2.68 |
| 2010–14 | 2.70 | 2.59 | 2.73 |
| 2015–19 | 2.71 | 2.57 | 2.71 |
| 2020–24 | 2.62 | 2.50 | 2.65 |
| Change | +0.03 | −0.04 | −0.03 |
Households in Duncan average 2.62 people, about the same as the country as a whole (2.65). The typical household here is bigger than in South Carolina overall, where it has 2.50 people. Households are largest in the south and smallest in the north.
Household size: the average number of people living in each occupied home. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25010).
Median age in Duncan
| Period | Duncan | South Carolina | U.S. |
|---|---|---|---|
| 2006–10 | 37.4 | 38.3 | 37.7 |
| 2010–14 | 35.2 | 39.3 | 38.6 |
| 2015–19 | 35.3 | 40.6 | 39.6 |
| 2020–24 | 37.6 | 41.2 | 40.1 |
| Change | +0.2 | +2.9 | +2.3 |
The median resident of Duncan is 37.6 years old, a few years younger than the national median of 40.1. Residents skew youngest in the center and oldest in the east. Duncan is younger than at least four in five South Carolina cities.
Median age: the age that splits residents into two equal halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B01002).
Single-parent households in Duncan
| Period | Duncan | South Carolina | U.S. |
|---|---|---|---|
| 2006–10 | 11.3% | 13.0% | 12.3% |
| 2010–14 | 17.7% | 13.0% | 12.3% |
| 2015–19 | 12.2% | 11.8% | 11.6% |
| 2020–24 | 8.8% | 11.7% | 11.6% |
| Change | −2.6 pts | −1.3 pts | −0.6 pts |
Single parents head about one in twelve households in Duncan (8.8%), below the national share of 11.6%. The single-parent share is down 2.6 points from 2006–10, a much bigger shift than nationally.
Single-parent households: households where one adult with no spouse present lives with children under 18. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B11003).
Housing in Duncan
Renters in Duncan
| Period | Duncan | South Carolina | U.S. |
|---|---|---|---|
| 2006–10 | 30.8% | 30.1% | 33.3% |
| 2010–14 | 36.4% | 31.4% | 35.6% |
| 2015–19 | 27.1% | 30.6% | 36.0% |
| 2020–24 | 25.4% | 28.1% | 34.8% |
| Change | −5.4 pts | −2.0 pts | +1.5 pts |
About a quarter of households in Duncan rent their homes (25.4%), below the national share of 34.8%; the rest own. Just over three in ten owners (31.2%) have paid off their mortgages, below the national share of 39.8%. Renting is most common in the east and least common in the south. The renter share is down 5.4 points from 2006–10, even as the national share rose.
Renters: occupied homes that are rented rather than owned. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25003).
Vacant homes in Duncan
| Period | Duncan | South Carolina | U.S. |
|---|---|---|---|
| 2006–10 | 11.2% | 14.2% | 11.4% |
| 2010–14 | 8.4% | 14.2% | 11.4% |
| 2015–19 | 7.5% | 13.3% | 11.1% |
| 2020–24 | 8.0% | 11.8% | 9.6% |
| Change | −3.2 pts | −2.5 pts | −1.8 pts |
Fewer homes sit empty in Duncan than nationally: 8.0%, against 9.6% for the U.S. Since 2006–10, vacancy has fallen 3.2 points, in line with the national trend.
Vacant homes: homes with no one living in them, including vacation homes and homes for sale or rent. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25002).
Age of homes in Duncan
| Period | Duncan | South Carolina | U.S. |
|---|---|---|---|
| 2006–10 | 1989 | 1984 | 1974 |
| 2010–14 | 1992 | 1985 | 1975 |
| 2015–19 | 1995 | 1987 | 1977 |
| 2020–24 | 2001 | 1991 | 1980 |
| Change | +13 | +7 | +6 |
Much of the housing in Duncan is relatively new: half of its homes were built after 2001, compared with 1980 for the U.S. as a whole. The median year built has moved up from 1989 in 2006–10, a sign of steady new building. Duncan has newer homes than at least four in five South Carolina cities.
Age of homes: the year that splits the housing stock into older and newer halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25035).
Rent in Duncan
| Period | Duncan | South Carolina | U.S. |
|---|---|---|---|
| 2006–10 | $636 | $780 | $965 |
| 2010–14 | $756 | $859 | $1,040 |
| 2015–19 | $953 | $984 | $1,213 |
| 2020–24 | $1,448 | $1,294 | $1,571 |
| Change | +$813 | +$514 | +$606 |
Rent in Duncan runs $1,448 a month at the median, utilities included, below the U.S. median of $1,571. Even so, rents here are higher than in South Carolina as a whole ($1,294). Rent has climbed $813 a month since 2006–10, up 128%, faster than rents rose nationally. The typical renter here spends 21.5% of household income on rent, comfortably under the 30% mark often used to define affordable rent, and a smaller share than renters pay nationally.
Rent: monthly rent plus the utilities renters pay themselves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25064).
Education in Duncan
Bachelor's degrees in Duncan
| Period | Duncan | South Carolina | U.S. |
|---|---|---|---|
| 2006–10 | 22.1% | 25.2% | 28.4% |
| 2010–14 | 23.9% | 26.5% | 29.6% |
| 2015–19 | 31.1% | 28.9% | 32.1% |
| 2020–24 | 31.4% | 32.6% | 35.6% |
| Change | +9.3 pts | +7.4 pts | +7.2 pts |
College degrees are a little less common in Duncan than nationally: 31.4% of adults 25 and older have a bachelor's or higher, against 35.6%. The share with a degree has risen 9.3 points since 2006–10, in line with the national trend. College graduates are most concentrated in the southeast and least in the northwest.
Bachelor's degrees: adults 25 and older with a bachelor's degree or higher. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).
High school graduates in Duncan
| Period | Duncan | South Carolina | U.S. |
|---|---|---|---|
| 2006–10 | 82.1% | 84.0% | 84.9% |
| 2010–14 | 89.0% | 85.7% | 86.1% |
| 2015–19 | 89.3% | 87.8% | 87.7% |
| 2020–24 | 95.1% | 90.2% | 89.3% |
| Change | +13.0 pts | +6.2 pts | +4.3 pts |
High school completion is high in Duncan: 95.1% of adults 25 and older have a diploma or equivalent, well above the national rate of 89.3%. The share with a diploma has risen 13.0 points since 2006–10, a much bigger shift than nationally. Duncan has a higher share of high school graduates than at least four in five South Carolina cities.
High school graduates: adults 25 and older with a high school diploma, GED or more. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).
Jobs in Duncan
| Period | Duncan | South Carolina | U.S. |
|---|---|---|---|
| 2006–10 | 7.5% | 9.1% | 8.1% |
| 2010–14 | 7.9% | 10.6% | 9.4% |
| 2015–19 | 5.1% | 5.8% | 5.6% |
| 2020–24 | 3.5% | 4.9% | 5.4% |
| Change | −4.0 pts | −4.2 pts | −2.7 pts |
Jobs have been easier to find in Duncan than nationally: unemployment was 3.5%, against 5.4%. Unemployment is down 4.0 points from 2006–10, mirroring the country. Each figure pools five years of surveys (2020–24), so it describes that whole stretch rather than today's job market.
Unemployment: people looking for work as a share of everyone working or looking. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B23025).
Duncan compared with nearby cities
| City | Household size | Median age | Single parents | Renters | Vacant homes | Median year built | Median rent | Bachelor's degree | High school diploma | Unemployment |
|---|---|---|---|---|---|---|---|---|---|---|
| Duncan | 2.62 | 37.6 | 8.8% | 25.4% | 8.0% | 2001 | $1,448 | 31.4% | 95.1% | 3.5% |
| Startex | 2.72 | 37.9 | 27.6% | 53.6% | 10.8% | 1977 | $1,062 | 14.5% | 79.5% | 1.1% |
| Reidville | 2.80 | 37.6 | 9.8% | 15.8% | 4.0% | 2010 | $1,805 | 33.9% | 92.9% | 4.0% |
| Wellford | 2.91 | 33.2 | 15.8% | 21.6% | 7.6% | 1997 | $1,139 | 21.8% | 90.5% | 2.4% |
| Poplar Springs | 2.60 | 38.8 | 7.6% | 4.2% | 1.1% | 2007 | $1,138 | 35.2% | 95.6% | 1.9% |
| Lyman | 2.72 | 37.3 | 6.6% | 14.0% | 6.9% | 1998 | $1,108 | 26.7% | 91.9% | 3.1% |
| Moore | 2.54 | 42.2 | 13.4% | 15.3% | 7.6% | 1999 | $1,571 | 30.8% | 92.5% | 5.3% |
| Greer | 2.66 | 40.2 | 9.5% | 20.5% | 7.2% | 1994 | $1,364 | 42.1% | 91.6% | 3.0% |
| Arcadia | 2.83 | 30.4 | 31.9% | 87.8% | 26.8% | 2006 | $1,371 | 21.4% | 69.7% | 2.4% |
| Five Forks | 2.86 | 40.6 | 6.8% | 13.4% | 3.7% | 2003 | $2,027 | 66.2% | 97.5% | 3.1% |
| Saxon | 2.65 | 30.4 | 31.3% | 62.0% | 14.7% | 1975 | $935 | 13.3% | 72.5% | 7.9% |
All figures 2020–24.
Cities with similar populations: Huntingdon, PA · Kettering, MD · Kendallville, IN · Kemp Mill, MD · Kearney, MO · Keansburg, NJ · Justice, IL · Jennings, LA · Indialantic, FL · Key Largo, FL
About these numbers
Every figure on this page is a BestNeighborhood calculation from the Census Bureau's American Community Survey (ACS), built up from the Census block groups that make up Duncan. Each ACS 5-year release pools five years of responses; this page shows the last 15 releases, 2006–10 through 2020–24. Neighboring releases share four of their five years, so they move gradually and small changes between them are within the survey's margin of error; in small places the lines can jump from one release to the next for the same reason. The maps show the same measures for each neighborhood, ranked against the whole country.
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