Population 9,832 · Census ACS 2020–24
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Median age by neighborhoodHistory and comparison ↓︎
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Population and households in Knoxville
Household size in Knoxville
| Period | Knoxville | Iowa | U.S. |
|---|---|---|---|
| 2006–10 | 2.39 | 2.44 | 2.68 |
| 2010–14 | 2.39 | 2.45 | 2.73 |
| 2015–19 | 2.29 | 2.43 | 2.71 |
| 2020–24 | 2.40 | 2.43 | 2.65 |
| Change | +0.01 | −0.01 | −0.03 |
Households in Knoxville are small: just 2.40 people on average, compared with 2.65 nationally. That is typical of places where many people live alone or as couples, and fewer have children at home. The biggest households, usually families with children, are concentrated in the northeast.
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 Knoxville
| Period | Knoxville | Iowa | U.S. |
|---|---|---|---|
| 2006–10 | 39.9 | 38.8 | 37.7 |
| 2010–14 | 41.0 | 39.3 | 38.6 |
| 2015–19 | 42.7 | 39.7 | 39.6 |
| 2020–24 | 43.0 | 39.8 | 40.1 |
| Change | +3.1 | +1.0 | +2.3 |
Knoxville skews older than the country: its median age is 43.0, against 40.1 nationally. The median age has climbed from 39.9 in 2006–10, as it has nationally. The youngest areas are in the east, the oldest in the southwest.
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 Knoxville
| Period | Knoxville | Iowa | U.S. |
|---|---|---|---|
| 2006–10 | 9.7% | 9.5% | 12.3% |
| 2010–14 | 9.1% | 9.9% | 12.3% |
| 2015–19 | 9.8% | 10.0% | 11.6% |
| 2020–24 | 7.7% | 10.0% | 11.6% |
| Change | −2.1 pts | +0.6 pts | −0.6 pts |
Single-parent households are relatively rare in Knoxville: 7.7% of households, against 11.6% nationally. The single-parent share has fallen 2.1 points since 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 Knoxville
Renters in Knoxville
| Period | Knoxville | Iowa | U.S. |
|---|---|---|---|
| 2006–10 | 25.8% | 26.8% | 33.3% |
| 2010–14 | 25.0% | 28.2% | 35.6% |
| 2015–19 | 33.4% | 28.9% | 36.0% |
| 2020–24 | 20.4% | 28.3% | 34.8% |
| Change | −5.4 pts | +1.5 pts | +1.5 pts |
Knoxville is largely a place of homeowners: only 20.4% of households rent, far below the national share of 34.8%. Owner-heavy areas like this tend to see less turnover. About four in ten owners (40.3%) have paid off their mortgages, about the same as nationally. 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 Knoxville
| Period | Knoxville | Iowa | U.S. |
|---|---|---|---|
| 2006–10 | 9.8% | 8.7% | 11.4% |
| 2010–14 | 9.4% | 8.6% | 11.4% |
| 2015–19 | 8.4% | 9.4% | 11.1% |
| 2020–24 | 11.0% | 8.8% | 9.6% |
| Change | +1.2 pts | +0.1 pts | −1.8 pts |
Vacancy in Knoxville is close to the national rate: 11.0% of homes are empty, against 9.6%. The rate is higher than in Iowa overall (8.8%). Vacancy has edged up 1.2 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 Knoxville
| Period | Knoxville | Iowa | U.S. |
|---|---|---|---|
| 2006–10 | 1967 | 1965 | 1974 |
| 2010–14 | 1967 | 1967 | 1975 |
| 2015–19 | 1968 | 1969 | 1977 |
| 2020–24 | 1971 | 1971 | 1980 |
| Change | +5 | +6 | +6 |
Knoxville is a place of older homes: half were built before 1971, 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 1967 in 2006–10, a sign of steady new building. Newer construction is concentrated in the northeast, 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 Knoxville
| Period | Knoxville | Iowa | U.S. |
|---|---|---|---|
| 2006–10 | $643 | $669 | $965 |
| 2010–14 | $587 | $732 | $1,040 |
| 2015–19 | $657 | $821 | $1,213 |
| 2020–24 | $820 | $1,020 | $1,571 |
| Change | +$177 | +$351 | +$606 |
The median renter in Knoxville pays $820 a month for rent and utilities, well below the national median of $1,571. Rents are up $177 a month from 2006–10, a 27% rise, a slower climb than the nation's. The typical renter here spends 27.8% of household income on rent, just under the 30% mark often used to define affordable rent, and a smaller share than renters pay nationally. Renters on a budget will find the lowest rents in the east; the highest are in the center.
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 Knoxville
Bachelor's degrees in Knoxville
| Period | Knoxville | Iowa | U.S. |
|---|---|---|---|
| 2006–10 | 16.7% | 26.5% | 28.4% |
| 2010–14 | 16.6% | 27.9% | 29.6% |
| 2015–19 | 19.0% | 29.3% | 32.1% |
| 2020–24 | 28.3% | 32.3% | 35.6% |
| Change | +11.6 pts | +5.8 pts | +7.2 pts |
Nearly three in ten adults 25 and older in Knoxville (28.3%) have a bachelor's degree or higher, below the national share of 35.6%. Since 2006–10, the share with a degree has risen 11.6 points, as it has nationally. College graduates are most concentrated in the northwest and least in the southwest.
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 Knoxville
| Period | Knoxville | Iowa | U.S. |
|---|---|---|---|
| 2006–10 | 90.6% | 90.4% | 84.9% |
| 2010–14 | 91.7% | 91.4% | 86.1% |
| 2015–19 | 92.7% | 92.1% | 87.7% |
| 2020–24 | 93.4% | 93.0% | 89.3% |
| Change | +2.8 pts | +2.7 pts | +4.3 pts |
High school completion in Knoxville is above the national rate: 93.4% of adults have a diploma, against 89.3%. Iowa as a whole looks much the same. The share with a diploma is up 2.8 points from 2006–10, in line with the national trend.
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 Knoxville
| Period | Knoxville | Iowa | U.S. |
|---|---|---|---|
| 2006–10 | 5.9% | 5.2% | 8.1% |
| 2010–14 | 4.7% | 5.4% | 9.4% |
| 2015–19 | 2.6% | 3.7% | 5.6% |
| 2020–24 | 4.4% | 3.7% | 5.4% |
| Change | −1.6 pts | −1.5 pts | −2.7 pts |
Unemployment in Knoxville runs below the national rate: 4.4% of the labor force was out of work and looking, against 5.4% nationally. Still, the rate is higher than in Iowa as a whole (3.7%). Since 2006–10, unemployment has fallen 1.6 points, mirroring the country.
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).
Knoxville 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Knoxville | 2.40 | 43.0 | 7.7% | 20.4% | 11.0% | 1971 | $820 | 28.3% | 93.4% | 4.4% |
| Pershing | 2.36 | 46.7 | 4.3% | 11.8% | 7.6% | 1968 | $876 | 17.2% | 94.1% | 0.5% |
| Attica | 2.08 | 51.9 | 3.1% | 14.5% | 5.7% | 1953 | $928 | 10.9% | 95.1% | 0.1% |
| Otley | 2.58 | 42.0 | 8.6% | 5.6% | 3.8% | 1994 | $782 | 33.0% | 94.4% | 0.5% |
| Harvey | 2.50 | 40.2 | 2.8% | 7.1% | 9.7% | 1979 | $777 | 24.8% | 93.4% | 0.9% |
| Melcher | 2.35 | 55.4 | 3.1% | 4.2% | 14.6% | 1971 | $614 | 41.4% | 86.8% | 2.1% |
| Dallas | 2.53 | 40.1 | 6.3% | 10.7% | 12.7% | 1967 | $660 | 26.2% | 94.5% | 2.5% |
| Columbia | 2.39 | 53.7 | 3.8% | 5.3% | 12.7% | 1972 | $760 | 33.6% | 89.9% | 1.8% |
| Melcher-Dallas | 2.52 | 35.0 | 16.0% | 18.4% | 13.0% | 1949 | $765 | 21.2% | 96.3% | 6.7% |
| Pleasantville | 2.45 | 37.4 | 12.5% | 20.4% | 5.6% | 1972 | $902 | 19.7% | 95.6% | 1.5% |
| Tracy | 2.42 | 41.6 | 3.6% | 7.0% | 10.6% | 1973 | $780 | 19.3% | 93.1% | 1.4% |
All figures 2020–24.
Cities with similar populations: Brookdale, NJ · Sykesville, MD · Bargersville, IN · Barnesville, GA · Bath, ME · Brookville, OH · Baxter, MN · Beachwood, NJ · Tuckahoe, NY · Supply, NC
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 Knoxville. 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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