Population 25,541 · 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 | Oklahoma | U.S. |
|---|---|---|---|
| 2006–10 | 2.43 | 2.55 | 2.68 |
| 2010–14 | 2.45 | 2.60 | 2.73 |
| 2015–19 | 2.54 | 2.63 | 2.71 |
| 2020–24 | 2.42 | 2.58 | 2.65 |
| Change | −0.01 | +0.03 | −0.03 |
Households in Duncan run small, averaging 2.42 people against 2.65 nationally, which usually means more singles and couples and fewer children. The biggest households, usually families with children, are concentrated in the southeast. Duncan has smaller households than at least four in five Oklahoma cities.
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 | Oklahoma | U.S. |
|---|---|---|---|
| 2006–10 | 39.6 | 37.4 | 37.7 |
| 2010–14 | 39.7 | 37.5 | 38.6 |
| 2015–19 | 40.2 | 37.9 | 39.6 |
| 2020–24 | 40.7 | 38.0 | 40.1 |
| Change | +1.0 | +0.6 | +2.3 |
Half of the people in Duncan are younger than 40.7 and half are older, close to the national median of 40.1. The population here is older than in Oklahoma overall, where the median age is 38.0. The median age has climbed from 39.6 in 2006–10, as it has nationally.
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 | Oklahoma | U.S. |
|---|---|---|---|
| 2006–10 | 10.3% | 11.9% | 12.3% |
| 2010–14 | 11.4% | 12.1% | 12.3% |
| 2015–19 | 11.0% | 12.1% | 11.6% |
| 2020–24 | 12.2% | 12.0% | 11.6% |
| Change | +1.8 pts | +0.1 pts | −0.6 pts |
Single-parent households are about as common in Duncan as they are nationally: 12.2%, against 11.6%. The single-parent share is up 1.8 points from 2006–10, even as the national share fell.
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 | Oklahoma | U.S. |
|---|---|---|---|
| 2006–10 | 29.8% | 31.8% | 33.3% |
| 2010–14 | 34.0% | 33.5% | 35.6% |
| 2015–19 | 32.1% | 34.4% | 36.0% |
| 2020–24 | 30.3% | 34.2% | 34.8% |
| Change | +0.5 pts | +2.4 pts | +1.5 pts |
About three in ten households in Duncan rent their homes (30.3%), a little below the national share of 34.8%; the rest own. Among homeowners, 52.1% have no mortgage at all, well above the national share of 39.8%. Renting is most common in the south and least common in the northeast.
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 | Oklahoma | U.S. |
|---|---|---|---|
| 2006–10 | 13.5% | 12.8% | 11.4% |
| 2010–14 | 13.3% | 12.7% | 11.4% |
| 2015–19 | 19.6% | 13.5% | 11.1% |
| 2020–24 | 14.0% | 11.3% | 9.6% |
| Change | +0.6 pts | −1.5 pts | −1.8 pts |
Vacancy is high in Duncan: 14.0% of homes are empty, far above the national rate of 9.6%. In resort and lake areas that usually means seasonal and vacation homes; elsewhere it can point to weak demand. Vacancy has edged up 0.6 points since 2006–10, even as the national rate fell.
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 | Oklahoma | U.S. |
|---|---|---|---|
| 2006–10 | 1965 | 1976 | 1974 |
| 2010–14 | 1966 | 1977 | 1975 |
| 2015–19 | 1970 | 1979 | 1977 |
| 2020–24 | 1970 | 1982 | 1980 |
| Change | +5 | +7 | +6 |
Duncan is a place of older homes: half were built before 1970, while the national median is 1980. That means established neighborhoods, and more houses that may need updating. The median year built has moved up from 1965 in 2006–10, a sign of steady new building. Newer construction is concentrated in the southwest, while the center has the oldest housing.
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 | Oklahoma | U.S. |
|---|---|---|---|
| 2006–10 | $568 | $716 | $965 |
| 2010–14 | $688 | $805 | $1,040 |
| 2015–19 | $736 | $897 | $1,213 |
| 2020–24 | $933 | $1,127 | $1,571 |
| Change | +$365 | +$411 | +$606 |
A typical rental in Duncan costs $933 a month with utilities, well below the national median of $1,571. Rents are up $365 a month from 2006–10, a 64% jump, roughly in step with the nation. Rent takes 29.2% of the typical renter's income, just under the 30% mark often used to define affordable rent.
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 | Oklahoma | U.S. |
|---|---|---|---|
| 2006–10 | 18.2% | 24.2% | 28.4% |
| 2010–14 | 19.1% | 24.9% | 29.6% |
| 2015–19 | 18.0% | 26.1% | 32.1% |
| 2020–24 | 19.2% | 28.9% | 35.6% |
| Change | +1.1 pts | +4.7 pts | +7.2 pts |
Fewer adults in Duncan have a four-year degree than in the country as a whole: 19.2%, against 35.6% nationally. Since 2006–10, the share with a degree has edged up 1.1 points, a smaller shift than nationally. College graduates are most concentrated in the north and least in the south.
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 | Oklahoma | U.S. |
|---|---|---|---|
| 2006–10 | 85.3% | 86.0% | 84.9% |
| 2010–14 | 85.1% | 87.0% | 86.1% |
| 2015–19 | 87.2% | 88.1% | 87.7% |
| 2020–24 | 87.4% | 89.3% | 89.3% |
| Change | +2.1 pts | +3.3 pts | +4.3 pts |
About one in eight adults in Duncan never finished high school, a bit more than nationally: 87.4% have a diploma or equivalent, against 89.3% across the U.S. The share with a diploma has risen 2.1 points since 2006–10, as it has nationally.
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 | Oklahoma | U.S. |
|---|---|---|---|
| 2006–10 | 5.0% | 6.1% | 8.1% |
| 2010–14 | 7.8% | 6.8% | 9.4% |
| 2015–19 | 5.6% | 5.2% | 5.6% |
| 2020–24 | 6.7% | 5.0% | 5.4% |
| Change | +1.7 pts | −1.1 pts | −2.7 pts |
Unemployment runs a little high in Duncan: 6.7% of the labor force was out of work and looking, against 5.4% nationally. Unemployment has risen 1.7 points since 2006–10, even as the national rate fell. 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 | 2.42 | 40.7 | 12.2% | 30.3% | 14.0% | 1970 | $933 | 19.2% | 87.4% | 6.7% |
| Empire City | 2.64 | 44.3 | 5.8% | 10.3% | 10.0% | 1980 | $1,028 | 16.7% | 91.6% | 4.3% |
| Sunray | 2.83 | 41.1 | 7.7% | 8.8% | 11.9% | 1981 | $948 | 16.8% | 89.5% | 5.8% |
| Marlow | 2.55 | 39.7 | 7.8% | 22.2% | 11.7% | 1976 | $970 | 23.2% | 91.9% | 2.4% |
| Bray | 2.45 | 47.7 | 3.0% | 16.3% | 17.5% | 1979 | $1,041 | 14.3% | 93.5% | 4.4% |
| Central High | 2.62 | 41.6 | 4.3% | 14.6% | 3.4% | 1992 | $1,032 | 32.5% | 94.9% | 1.9% |
| Velma | 2.50 | 40.3 | 21.7% | 21.2% | 9.2% | 1980 | $906 | 17.6% | 91.6% | 5.7% |
| Cox City | 2.45 | 51.4 | 5.2% | 17.6% | 21.3% | 1978 | $791 | 18.2% | 91.9% | 1.1% |
| Countyline | 2.14 | 44.1 | 22.4% | 10.9% | 14.2% | 1978 | $666 | 21.8% | 91.9% | 8.7% |
| Tussy | 2.56 | 40.8 | 9.0% | 14.6% | 11.8% | 1980 | $937 | 24.2% | 93.1% | 4.2% |
| Geronimo | 2.50 | 37.2 | 8.0% | 16.8% | 11.8% | 1989 | $1,079 | 20.7% | 93.2% | 5.2% |
All figures 2020–24.
Cities with similar populations: Chantilly, VA · Vienna, VA · Vero Beach South, FL · Cockeysville, MD · Clinton, IA · Cliffside Park, NJ · Clarksburg, MD · Clackamas, OR · Citrus Park, FL · Warrensburg, MO
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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