Population 976 · Census ACS 2020–24
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Population and households in Duff
Household size in Duff
| Period | Duff | Knoxville area | Tennessee | U.S. |
|---|---|---|---|---|
| 2006–10 | 3.13 | 2.40 | 2.53 | 2.68 |
| 2010–14 | 2.88 | 2.46 | 2.57 | 2.73 |
| 2015–19 | 2.71 | 2.55 | 2.57 | 2.71 |
| 2020–24 | 2.49 | 2.47 | 2.53 | 2.65 |
| Change | −0.63 | +0.06 | +0.00 | −0.03 |
Households in Duff run a little small, averaging 2.49 people against 2.65 nationally, which usually means more singles and couples and fewer children. The picture is much the same across the Knoxville area. Since 2006–10, household size has dropped from 3.13, but in a place this small, much of that may be survey noise rather than real change.
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 Duff
| Period | Duff | Knoxville area | Tennessee | U.S. |
|---|---|---|---|---|
| 2006–10 | 31.2 | 40.0 | 38.3 | 37.7 |
| 2010–14 | 38.0 | 41.0 | 39.2 | 38.6 |
| 2015–19 | 35.5 | 41.6 | 39.9 | 39.6 |
| 2020–24 | 45.4 | 41.6 | 39.9 | 40.1 |
| Change | +14.2 | +1.6 | +1.6 | +2.3 |
Duff skews older: half of its residents are older than 45.4, well above the national median of 40.1. That usually means more empty nesters and retirees, and fewer young families.
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 Duff
| Period | Duff | Knoxville area | Tennessee | U.S. |
|---|---|---|---|---|
| 2006–10 | 5.9% | 9.6% | 12.2% | 12.3% |
| 2010–14 | 12.6% | 9.4% | 12.0% | 12.3% |
| 2015–19 | 15.8% | 9.8% | 11.6% | 11.6% |
| 2020–24 | 6.3% | 9.4% | 11.8% | 11.6% |
| Change | +0.4 pts | −0.2 pts | −0.4 pts | −0.6 pts |
Single parents head only 6.3% of households in Duff, well below the national share of 11.6%.
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 Duff
Renters in Duff
| Period | Duff | Knoxville area | Tennessee | U.S. |
|---|---|---|---|---|
| 2006–10 | 22.6% | 28.6% | 30.4% | 33.3% |
| 2010–14 | 25.2% | 31.2% | 32.9% | 35.6% |
| 2015–19 | 15.7% | 31.1% | 33.7% | 36.0% |
| 2020–24 | 20.6% | 29.6% | 33.1% | 34.8% |
| Change | −2.0 pts | +1.0 pts | +2.6 pts | +1.5 pts |
Duff is largely a place of homeowners: only 20.6% of households rent, far below the national share of 34.8%. Owner-heavy areas like this tend to see less turnover. About seven in ten owners (71.9%) have paid off their mortgages, well above the national share of 39.8%.
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 Duff
| Period | Duff | Knoxville area | Tennessee | U.S. |
|---|---|---|---|---|
| 2006–10 | 20.2% | 9.9% | 11.5% | 11.4% |
| 2010–14 | 33.1% | 11.3% | 11.8% | 11.4% |
| 2015–19 | 10.1% | 11.7% | 11.8% | 11.1% |
| 2020–24 | 29.2% | 9.9% | 10.1% | 9.6% |
| Change | +9.0 pts | −0.0 pts | −1.4 pts | −1.8 pts |
Vacant homes make up 29.2% of the housing in Duff, 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.
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 Duff
| Period | Duff | Knoxville area | Tennessee | U.S. |
|---|---|---|---|---|
| 2006–10 | 1978 | 1980 | 1981 | 1974 |
| 2010–14 | 1976 | 1981 | 1982 | 1975 |
| 2015–19 | 1984 | 1982 | 1983 | 1977 |
| 2020–24 | 1979 | 1985 | 1986 | 1980 |
| Change | +1 | +5 | +6 | +6 |
Homes in Duff are about the same age as the nation's housing: the median home was built in 1979, versus 1980 nationally. Homes here are older than in the wider Knoxville area, where the median home dates to 1985.
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 Duff
| Period | Duff | Knoxville area | Tennessee | U.S. |
|---|---|---|---|---|
| 2006–10 | $367 | $707 | $761 | $965 |
| 2010–14 | $566 | $787 | $837 | $1,040 |
| 2015–19 | $346 | $882 | $961 | $1,213 |
| 2020–24 | $696 | $1,212 | $1,286 | $1,571 |
| Change | +$329 | +$505 | +$526 | +$606 |
Rent in Duff runs $696 a month at the median, utilities included, well below the U.S. median of $1,571. The typical renter here spends 16.7% 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 Duff
Bachelor's degrees in Duff
| Period | Duff | Knoxville area | Tennessee | U.S. |
|---|---|---|---|---|
| 2006–10 | 6.2% | 26.7% | 23.9% | 28.4% |
| 2010–14 | 3.0% | 27.7% | 25.3% | 29.6% |
| 2015–19 | 6.7% | 30.0% | 27.9% | 32.1% |
| 2020–24 | 28.8% | 33.5% | 31.4% | 35.6% |
| Change | +22.6 pts | +6.8 pts | +7.5 pts | +7.2 pts |
College degrees are less common in Duff than nationally: 28.8% of adults 25 and older have a bachelor's or higher, against 35.6%.
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 Duff
| Period | Duff | Knoxville area | Tennessee | U.S. |
|---|---|---|---|---|
| 2006–10 | 63.1% | 84.6% | 83.3% | 84.9% |
| 2010–14 | 71.9% | 86.9% | 85.4% | 86.1% |
| 2015–19 | 63.5% | 88.9% | 87.6% | 87.7% |
| 2020–24 | 72.5% | 90.9% | 89.9% | 89.3% |
| Change | +9.4 pts | +6.3 pts | +6.6 pts | +4.3 pts |
More than a quarter of adults in Duff never finished high school, well above the national share: only 72.5% have a diploma or equivalent, against 89.3% 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 Duff
| Period | Duff | Knoxville area | Tennessee | U.S. |
|---|---|---|---|---|
| 2006–10 | 15.1% | 7.0% | 8.6% | 8.1% |
| 2010–14 | 36.5% | 8.2% | 9.6% | 9.4% |
| 2015–19 | 20.7% | 4.9% | 5.4% | 5.6% |
| 2020–24 | 1.8% | 3.6% | 4.8% | 5.4% |
| Change | −13.3 pts | −3.4 pts | −3.8 pts | −2.7 pts |
Unemployment in Duff has been low: just 1.8% of the labor force was out of work and looking, well below the national rate of 5.4%. 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).
Duff 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Duff | 2.49 | 45.4 | 6.3% | 20.6% | 29.2% | 1979 | $696 | 28.8% | 72.5% | 1.8% |
| Cotula | 2.48 | 45.4 | 5.6% | 20.0% | 30.1% | 1979 | $713 | 30.5% | 72.5% | 0.0% |
| Tackett Creek | 2.48 | 45.4 | 5.6% | 20.0% | 30.1% | 1979 | $713 | 30.5% | 72.5% | 0.0% |
| Eagan | 2.30 | 48.8 | 8.8% | 20.5% | 22.1% | 1979 | $638 | 22.0% | 74.3% | 5.9% |
| Stinking Creek | 2.35 | 48.2 | 11.5% | 13.2% | 17.0% | 1989 | $578 | 10.4% | 77.7% | 14.1% |
| Ivydell | 2.21 | 49.1 | 6.1% | 7.1% | 22.5% | 1986 | $713 | 21.1% | 79.5% | 0.0% |
| Jellico | 2.02 | 46.4 | 7.2% | 40.2% | 10.3% | 1981 | $612 | 17.2% | 82.5% | 10.0% |
| Clairfield | 2.02 | 53.9 | 13.4% | 21.4% | 10.4% | 1978 | $526 | 9.5% | 76.9% | 14.7% |
| Newcomb | 1.92 | 55.8 | 4.8% | 16.2% | 8.6% | 1975 | $427 | 13.8% | 63.7% | 0.2% |
| Saxton | 2.84 | 24.1 | 25.1% | 43.6% | 25.0% | 1995 | $918 | 12.6% | 77.5% | 5.3% |
| Pearl | 2.89 | 40.3 | 7.3% | 7.5% | 39.1% | 1986 | $825 | 13.3% | 83.7% | 3.0% |
All figures 2020–24.
Cities with similar populations: Vulcan, MI · Chester, MT · Cheyenne Wells, CO · Clarkson, NE · Cygnet, OH · Dry Creek, LA · Elizabeth, MN · Emery, SD · Toccopola, MS · Tryon, OK
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 Duff. 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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