Population 18,196 · Census ACS 2020–24
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Population and households in Johnson County
Household size in Johnson County
| Period | Johnson County | Tennessee | U.S. |
|---|---|---|---|
| 2006–10 | 2.28 | 2.53 | 2.68 |
| 2010–14 | 2.31 | 2.57 | 2.73 |
| 2015–19 | 2.32 | 2.57 | 2.71 |
| 2020–24 | 2.33 | 2.53 | 2.65 |
| Change | +0.05 | +0.00 | −0.03 |
Johnson County is a place of small households, averaging 2.33 people against 2.65 for the U.S., which points to many singles, couples and roommates and relatively few children. Household size has crept up from 2.28 in 2006–10, even as the national average fell. Johnson County has smaller households than the great majority of Tennessee counties.
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 Johnson County
| Period | Johnson County | Tennessee | U.S. |
|---|---|---|---|
| 2006–10 | 42.0 | 38.3 | 37.7 |
| 2010–14 | 45.5 | 39.2 | 38.6 |
| 2015–19 | 46.6 | 39.9 | 39.6 |
| 2020–24 | 46.2 | 39.9 | 40.1 |
| Change | +4.2 | +1.6 | +2.3 |
Johnson County skews older: half of its residents are older than 46.2, well above the national median of 40.1. That usually means more empty nesters and retirees, and fewer young families. The median age has climbed from 42.0 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 Johnson County
| Period | Johnson County | Tennessee | U.S. |
|---|---|---|---|
| 2006–10 | 10.1% | 12.2% | 12.3% |
| 2010–14 | 6.6% | 12.0% | 12.3% |
| 2015–19 | 10.2% | 11.6% | 11.6% |
| 2020–24 | 14.4% | 11.8% | 11.6% |
| Change | +4.3 pts | −0.4 pts | −0.6 pts |
Single-parent households are more common in Johnson County than nationally: 14.4%, against 11.6%. The single-parent share has risen 4.3 points since 2006–10, even as the national share fell. Johnson County has a higher share of single-parent households than the great majority of Tennessee counties.
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 Johnson County
Renters in Johnson County
| Period | Johnson County | Tennessee | U.S. |
|---|---|---|---|
| 2006–10 | 23.6% | 30.4% | 33.3% |
| 2010–14 | 22.3% | 32.9% | 35.6% |
| 2015–19 | 24.4% | 33.7% | 36.0% |
| 2020–24 | 22.5% | 33.1% | 34.8% |
| Change | −1.1 pts | +2.6 pts | +1.5 pts |
Johnson County is largely a place of homeowners: only 22.5% of households rent, far below the national share of 34.8%. Owner-heavy areas like this tend to see less turnover. Among homeowners, 66.0% have no mortgage at all, well above the national share of 39.8%. The renter share has edged down 1.1 points since 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 Johnson County
| Period | Johnson County | Tennessee | U.S. |
|---|---|---|---|
| 2006–10 | 15.3% | 11.5% | 11.4% |
| 2010–14 | 20.0% | 11.8% | 11.4% |
| 2015–19 | 24.0% | 11.8% | 11.1% |
| 2020–24 | 16.3% | 10.1% | 9.6% |
| Change | +1.0 pts | −1.4 pts | −1.8 pts |
Vacant homes make up 16.3% of the housing in Johnson County, 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. Since 2006–10, vacancy has edged up 1.0 points, 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 Johnson County
| Period | Johnson County | Tennessee | U.S. |
|---|---|---|---|
| 2006–10 | 1978 | 1981 | 1974 |
| 2010–14 | 1982 | 1982 | 1975 |
| 2015–19 | 1984 | 1983 | 1977 |
| 2020–24 | 1982 | 1986 | 1980 |
| Change | +4 | +6 | +6 |
Homes in Johnson County are about the same age as the nation's housing: the median home was built in 1982, versus 1980 nationally. Homes here are older than in Tennessee overall, where the median home dates to 1986. The median year built has moved up from 1978 in 2006–10, a sign of steady new building. The newest homes are mostly in the southwest, the oldest in the southeast.
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 Johnson County
| Period | Johnson County | Tennessee | U.S. |
|---|---|---|---|
| 2006–10 | $487 | $761 | $965 |
| 2010–14 | $534 | $837 | $1,040 |
| 2015–19 | $566 | $961 | $1,213 |
| 2020–24 | $741 | $1,286 | $1,571 |
| Change | +$254 | +$526 | +$606 |
A typical rental in Johnson County costs $741 a month with utilities, well below the national median of $1,571. Rent has climbed $254 a month since 2006–10, up 52%, a slower climb than the nation's. Rent takes 24.5% of the typical renter's income, comfortably under the 30% mark often used to define affordable rent. Renters on a budget will find the lowest rents in the center; the highest are in the south.
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 Johnson County
Bachelor's degrees in Johnson County
| Period | Johnson County | Tennessee | U.S. |
|---|---|---|---|
| 2006–10 | 10.0% | 23.9% | 28.4% |
| 2010–14 | 9.2% | 25.3% | 29.6% |
| 2015–19 | 11.8% | 27.9% | 32.1% |
| 2020–24 | 17.4% | 31.4% | 35.6% |
| Change | +7.4 pts | +7.5 pts | +7.2 pts |
Fewer adults in Johnson County have a four-year degree than in the country as a whole: 17.4%, against 35.6% nationally. The share with a degree is up 7.4 points from 2006–10, in line with the national trend.
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 Johnson County
| Period | Johnson County | Tennessee | U.S. |
|---|---|---|---|
| 2006–10 | 69.4% | 83.3% | 84.9% |
| 2010–14 | 74.3% | 85.4% | 86.1% |
| 2015–19 | 80.4% | 87.6% | 87.7% |
| 2020–24 | 83.0% | 89.9% | 89.3% |
| Change | +13.6 pts | +6.6 pts | +4.3 pts |
About one in six adults in Johnson County never finished high school, well above the national share: only 83.0% have a diploma or equivalent, against 89.3% nationally. Since 2006–10, the share with a diploma has risen 13.6 points, a much bigger shift than nationally. Few Tennessee counties have a lower share of high school graduates: only nine of 95.
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 Johnson County
| Period | Johnson County | Tennessee | U.S. |
|---|---|---|---|
| 2006–10 | 11.6% | 8.6% | 8.1% |
| 2010–14 | 10.4% | 9.6% | 9.4% |
| 2015–19 | 3.9% | 5.4% | 5.6% |
| 2020–24 | 3.8% | 4.8% | 5.4% |
| Change | −7.8 pts | −3.8 pts | −2.7 pts |
Jobs have been easier to find in Johnson County than nationally: unemployment was 3.8%, against 5.4%. Unemployment has fallen 7.8 points since 2006–10, as it has nationally. Because the Census pools five years of responses (2020–24), these rates smooth over short swings and lag the current 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).
Johnson County compared with nearby counties
| County | Household size | Median age | Single parents | Renters | Vacant homes | Median year built | Median rent | Bachelor's degree | High school diploma | Unemployment |
|---|---|---|---|---|---|---|---|---|---|---|
| Johnson County | 2.33 | 46.2 | 14.4% | 22.5% | 16.3% | 1982 | $741 | 17.4% | 83.0% | 3.8% |
| Ashe County | 2.20 | 49.6 | 9.0% | 20.6% | 27.3% | 1983 | $894 | 27.0% | 89.1% | 4.5% |
| Carter County | 2.30 | 45.0 | 11.0% | 24.8% | 13.3% | 1976 | $755 | 21.1% | 89.9% | 6.1% |
| Sullivan County | 2.34 | 44.8 | 10.9% | 27.9% | 10.3% | 1976 | $911 | 27.3% | 90.2% | 5.2% |
| Washington County | 2.34 | 41.3 | 9.1% | 35.5% | 10.8% | 1984 | $1,008 | 34.9% | 91.3% | 4.7% |
| Alleghany County | 2.15 | 51.2 | 4.0% | 25.6% | 29.5% | 1980 | $721 | 22.2% | 83.7% | 4.1% |
| Hawkins County | 2.46 | 46.1 | 12.6% | 19.9% | 13.3% | 1985 | $907 | 16.2% | 87.4% | 7.1% |
| Surry County | 2.37 | 44.0 | 12.2% | 26.6% | 12.0% | 1979 | $760 | 20.3% | 83.8% | 4.1% |
| Hancock County | 2.39 | 45.1 | 8.8% | 25.4% | 21.7% | 1984 | $619 | 11.0% | 76.9% | 7.9% |
| Stokes County | 2.33 | 47.5 | 7.9% | 20.8% | 9.6% | 1984 | $812 | 18.2% | 91.6% | 3.2% |
| Claiborne County | 2.30 | 42.5 | 11.2% | 27.8% | 12.8% | 1987 | $750 | 18.0% | 84.2% | 4.4% |
All figures 2020–24.
Counties with similar populations: Clarke County, IA · Tunica County, MS · Trousdale County, TN · Trinity County, TX · Trimble County, KY · Trigg County, KY · Clay County, NC · Clay County, KS · Clay County, IL · Turner County, GA
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 Johnson County. 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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