Population 420 · Census ACS 2020–24
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Population and households in Rock City
Household size in Rock City
| Period | Rock City | Nashville area | Tennessee | U.S. |
|---|---|---|---|---|
| 2006–10 | 2.63 | 2.57 | 2.53 | 2.68 |
| 2010–14 | 2.85 | 2.63 | 2.57 | 2.73 |
| 2015–19 | 3.04 | 2.64 | 2.57 | 2.71 |
| 2020–24 | 2.53 | 2.56 | 2.53 | 2.65 |
| Change | −0.10 | −0.01 | +0.00 | −0.03 |
Households in Rock City run a little small, averaging 2.53 people against 2.65 nationally, which usually means more singles and couples and fewer children. The picture is much the same across the Nashville area. Household size has dropped from 2.63 in 2006–10, but in a place this small, survey estimates can swing a lot from one release to the next.
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 Rock City
| Period | Rock City | Nashville area | Tennessee | U.S. |
|---|---|---|---|---|
| 2006–10 | 38.3 | 36.6 | 38.3 | 37.7 |
| 2010–14 | 37.8 | 37.3 | 39.2 | 38.6 |
| 2015–19 | 39.2 | 37.9 | 39.9 | 39.6 |
| 2020–24 | 40.8 | 38.0 | 39.9 | 40.1 |
| Change | +2.4 | +1.5 | +1.6 | +2.3 |
At 40.8, the median age in Rock City is close to the national median of 40.1, so its age mix looks much like the country's. The population here is older than in the wider Nashville area, where the median age is 38.0.
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 Rock City
| Period | Rock City | Nashville area | Tennessee | U.S. |
|---|---|---|---|---|
| 2006–10 | 8.5% | 11.7% | 12.2% | 12.3% |
| 2010–14 | 3.9% | 11.6% | 12.0% | 12.3% |
| 2015–19 | 15.9% | 10.7% | 11.6% | 11.6% |
| 2020–24 | 11.7% | 10.7% | 11.8% | 11.6% |
| Change | +3.3 pts | −1.0 pts | −0.4 pts | −0.6 pts |
Single-parent households are about as common in Rock City as they are nationally: 11.7%, against 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 Rock City
Renters in Rock City
| Period | Rock City | Nashville area | Tennessee | U.S. |
|---|---|---|---|---|
| 2006–10 | 21.9% | 31.5% | 30.4% | 33.3% |
| 2010–14 | 29.9% | 34.2% | 32.9% | 35.6% |
| 2015–19 | 19.4% | 34.2% | 33.7% | 36.0% |
| 2020–24 | 31.3% | 34.8% | 33.1% | 34.8% |
| Change | +9.3 pts | +3.3 pts | +2.6 pts | +1.5 pts |
Just over three in ten households in Rock City rent their homes (31.3%), a little below the national share of 34.8%; the rest own. Among homeowners, 67.2% have no mortgage at all, 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 Rock City
| Period | Rock City | Nashville area | Tennessee | U.S. |
|---|---|---|---|---|
| 2006–10 | 22.5% | 9.1% | 11.5% | 11.4% |
| 2010–14 | 6.5% | 8.8% | 11.8% | 11.4% |
| 2015–19 | 12.0% | 8.5% | 11.8% | 11.1% |
| 2020–24 | 13.2% | 8.2% | 10.1% | 9.6% |
| Change | −9.3 pts | −0.9 pts | −1.4 pts | −1.8 pts |
Vacancy runs high in Rock City: 13.2% of homes are empty, against 9.6% nationally. The count includes vacation homes and homes between owners or tenants, not just abandoned ones.
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 Rock City
| Period | Rock City | Nashville area | Tennessee | U.S. |
|---|---|---|---|---|
| 2006–10 | 1982 | 1984 | 1981 | 1974 |
| 2010–14 | 1987 | 1985 | 1982 | 1975 |
| 2015–19 | 1991 | 1988 | 1983 | 1977 |
| 2020–24 | 1992 | 1992 | 1986 | 1980 |
| Change | +10 | +9 | +6 | +6 |
Rock City has newer housing than the country as a whole: the median home was built in 1992, versus 1980 nationally. The picture is much the same across the Nashville area.
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 Rock City
| Period | Rock City | Nashville area | Tennessee | U.S. |
|---|---|---|---|---|
| 2006–10 | $525 | $905 | $761 | $965 |
| 2010–14 | $581 | $986 | $837 | $1,040 |
| 2015–19 | $619 | $1,212 | $961 | $1,213 |
| 2020–24 | $801 | $1,653 | $1,286 | $1,571 |
| Change | +$275 | +$749 | +$526 | +$606 |
Rent in Rock City runs $801 a month at the median, utilities included, well below the U.S. median of $1,571. The typical renter here spends 22.9% 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 Rock City
Bachelor's degrees in Rock City
| Period | Rock City | Nashville area | Tennessee | U.S. |
|---|---|---|---|---|
| 2006–10 | 11.4% | 30.1% | 23.9% | 28.4% |
| 2010–14 | 6.1% | 32.0% | 25.3% | 29.6% |
| 2015–19 | 16.2% | 36.3% | 27.9% | 32.1% |
| 2020–24 | 15.1% | 41.0% | 31.4% | 35.6% |
| Change | +3.7 pts | +10.9 pts | +7.5 pts | +7.2 pts |
College degrees are relatively uncommon in Rock City: 15.1% of adults 25 and older hold a bachelor's or higher, well below the national share of 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 Rock City
| Period | Rock City | Nashville area | Tennessee | U.S. |
|---|---|---|---|---|
| 2006–10 | 77.5% | 86.5% | 83.3% | 84.9% |
| 2010–14 | 70.4% | 88.0% | 85.4% | 86.1% |
| 2015–19 | 86.9% | 90.0% | 87.6% | 87.7% |
| 2020–24 | 84.2% | 91.7% | 89.9% | 89.3% |
| Change | +6.8 pts | +5.1 pts | +6.6 pts | +4.3 pts |
Nearly one in six adults in Rock City never finished high school, well above the national share: only 84.2% 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 Rock City
| Period | Rock City | Nashville area | Tennessee | U.S. |
|---|---|---|---|---|
| 2006–10 | 9.1% | 7.2% | 8.6% | 8.1% |
| 2010–14 | 5.6% | 7.8% | 9.6% | 9.4% |
| 2015–19 | 4.3% | 3.9% | 5.4% | 5.6% |
| 2020–24 | 0.5% | 3.6% | 4.8% | 5.4% |
| Change | −8.6 pts | −3.6 pts | −3.8 pts | −2.7 pts |
The job market in Rock City has been strong: just 0.5% of the labor force was out of work and looking, well below the national rate of 5.4%. 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).
Rock City 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Rock City | 2.53 | 40.8 | 11.7% | 31.3% | 13.2% | 1992 | $801 | 15.1% | 84.2% | 0.5% |
| Tanglewood | 2.37 | 44.6 | 10.2% | 21.8% | 8.5% | 1994 | $933 | 13.9% | 84.2% | 10.8% |
| Grant | 2.88 | 41.7 | 8.0% | 18.6% | 4.9% | 1994 | $1,058 | 26.8% | 93.5% | 3.1% |
| Bellwood | 3.07 | 41.3 | 8.0% | 16.0% | 4.8% | 1993 | $1,102 | 28.0% | 94.4% | 2.2% |
| Riddleton | 2.41 | 47.6 | 3.9% | 14.2% | 11.5% | 1988 | $872 | 17.1% | 93.5% | 2.2% |
| Carthage | 2.50 | 39.8 | 9.3% | 31.9% | 9.1% | 1977 | $958 | 21.7% | 87.1% | 2.5% |
| South Carthage | 2.72 | 33.6 | 18.0% | 35.1% | 4.9% | 1985 | $956 | 18.4% | 84.2% | 4.0% |
| Prosperity | 2.34 | 49.1 | 9.5% | 12.2% | 8.4% | 1987 | $836 | 22.7% | 91.3% | 6.6% |
| Johntown | 2.38 | 49.8 | 1.1% | 8.3% | 11.3% | 1986 | $887 | 18.3% | 97.0% | 1.7% |
| Kempville | 2.37 | 39.5 | 6.4% | 35.1% | 11.5% | 1960 | $1,005 | 20.6% | 90.0% | 1.0% |
| Brush Creek | 2.42 | 43.7 | 8.6% | 11.3% | 8.2% | 1994 | $965 | 17.5% | 87.2% | 4.1% |
All figures 2020–24.
Cities with similar populations: Idell, NJ · Kegley, WV · Karthaus, PA · Jolon, CA · Jeff, KY · Isle of Wight, VA · Industrial, WV · Indian River, NY · Imalone, WI · Iler, OH
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 Rock City. 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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