Population 22,702 · Census ACS 2020–24
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Population and households in ZIP 37821
Household size in ZIP 37821
| Period | ZIP 37821 | Tennessee | U.S. |
|---|---|---|---|
| 2006–10 | 2.35 | 2.53 | 2.68 |
| 2010–14 | 2.37 | 2.57 | 2.73 |
| 2015–19 | 2.50 | 2.57 | 2.71 |
| 2020–24 | 2.40 | 2.53 | 2.65 |
| Change | +0.05 | +0.00 | −0.03 |
Households in ZIP 37821 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. Household size has crept up from 2.35 in 2006–10, even as the national average fell.
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 ZIP 37821
| Period | ZIP 37821 | Tennessee | U.S. |
|---|---|---|---|
| 2006–10 | 41.0 | 38.3 | 37.7 |
| 2010–14 | 42.0 | 39.2 | 38.6 |
| 2015–19 | 43.5 | 39.9 | 39.6 |
| 2020–24 | 42.5 | 39.9 | 40.1 |
| Change | +1.6 | +1.6 | +2.3 |
ZIP 37821 skews a little older than the country: its median age is 42.5, against 40.1 nationally. The median age has climbed from 41.0 in 2006–10, as it has nationally. The youngest areas are in the east, the oldest in the south.
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 ZIP 37821
| Period | ZIP 37821 | Tennessee | U.S. |
|---|---|---|---|
| 2006–10 | 13.7% | 12.2% | 12.3% |
| 2010–14 | 14.8% | 12.0% | 12.3% |
| 2015–19 | 13.5% | 11.6% | 11.6% |
| 2020–24 | 18.5% | 11.8% | 11.6% |
| Change | +4.7 pts | −0.4 pts | −0.6 pts |
Single parents head nearly one in five households in ZIP 37821 (18.5%), well above the national share of 11.6%. The single-parent share has risen 4.7 points since 2006–10, even as the national share fell. Of the 298 Tennessee ZIP codes with 5,000+ people, only 24 have a higher share of single-parent households.
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 ZIP 37821
Renters in ZIP 37821
| Period | ZIP 37821 | Tennessee | U.S. |
|---|---|---|---|
| 2006–10 | 30.7% | 30.4% | 33.3% |
| 2010–14 | 33.5% | 32.9% | 35.6% |
| 2015–19 | 39.5% | 33.7% | 36.0% |
| 2020–24 | 29.9% | 33.1% | 34.8% |
| Change | −0.9 pts | +2.6 pts | +1.5 pts |
Most households in ZIP 37821 own their homes; 29.9% rent, a little below the national share of 34.8%. Among homeowners, 58.8% have no mortgage at all, well above the national share of 39.8%. Rentals cluster in the center; owners are most common in the southeast. Since 2006–10, the renter share has edged down 0.9 points, 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 ZIP 37821
| Period | ZIP 37821 | Tennessee | U.S. |
|---|---|---|---|
| 2006–10 | 13.9% | 11.5% | 11.4% |
| 2010–14 | 10.8% | 11.8% | 11.4% |
| 2015–19 | 18.6% | 11.8% | 11.1% |
| 2020–24 | 12.4% | 10.1% | 9.6% |
| Change | −1.5 pts | −1.4 pts | −1.8 pts |
More homes sit empty in ZIP 37821 than nationally: 12.4%, against 9.6%. The count includes vacation homes and homes between owners or tenants, not just abandoned ones. Vacancy has fallen 1.5 points since 2006–10, as it has nationally.
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 ZIP 37821
| Period | ZIP 37821 | Tennessee | U.S. |
|---|---|---|---|
| 2006–10 | 1979 | 1981 | 1974 |
| 2010–14 | 1981 | 1982 | 1975 |
| 2015–19 | 1981 | 1983 | 1977 |
| 2020–24 | 1983 | 1986 | 1980 |
| Change | +4 | +6 | +6 |
The typical home in ZIP 37821 was built around 1983, about the same vintage as the country's housing overall (1980). The median year built has moved up from 1979 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 ZIP 37821
| Period | ZIP 37821 | Tennessee | U.S. |
|---|---|---|---|
| 2006–10 | $487 | $761 | $965 |
| 2010–14 | $544 | $837 | $1,040 |
| 2015–19 | $650 | $961 | $1,213 |
| 2020–24 | $806 | $1,286 | $1,571 |
| Change | +$320 | +$526 | +$606 |
Rent in ZIP 37821 runs $806 a month at the median, utilities included, well below the U.S. median of $1,571. Rents are up $320 a month from 2006–10, a 66% jump, roughly in step with the nation. The typical renter here spends 27.2% 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 southeast; the highest are in the northwest.
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 ZIP 37821
Bachelor's degrees in ZIP 37821
| Period | ZIP 37821 | Tennessee | U.S. |
|---|---|---|---|
| 2006–10 | 7.1% | 23.9% | 28.4% |
| 2010–14 | 8.5% | 25.3% | 29.6% |
| 2015–19 | 10.6% | 27.9% | 32.1% |
| 2020–24 | 9.4% | 31.4% | 35.6% |
| Change | +2.2 pts | +7.5 pts | +7.2 pts |
Fewer adults in ZIP 37821 have a four-year degree than in the country as a whole: 9.4%, against 35.6% nationally. The share with a degree is up 2.2 points from 2006–10, a smaller shift than nationally. ZIP 37821 has the lowest share of college graduates of any Tennessee ZIP code with 5,000+ people.
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 ZIP 37821
| Period | ZIP 37821 | Tennessee | U.S. |
|---|---|---|---|
| 2006–10 | 69.5% | 83.3% | 84.9% |
| 2010–14 | 77.6% | 85.4% | 86.1% |
| 2015–19 | 78.9% | 87.6% | 87.7% |
| 2020–24 | 84.5% | 89.9% | 89.3% |
| Change | +14.9 pts | +6.6 pts | +4.3 pts |
Nearly one in six adults in ZIP 37821 never finished high school, more than nationally: 84.5% have a diploma or equivalent, against 89.3% across the U.S. Since 2006–10, the share with a diploma has risen 14.9 points, a much bigger shift than nationally. ZIP 37821 has a lower share of high school graduates than at least four in five Tennessee ZIP codes.
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 ZIP 37821
| Period | ZIP 37821 | Tennessee | U.S. |
|---|---|---|---|
| 2006–10 | 11.8% | 8.6% | 8.1% |
| 2010–14 | 11.5% | 9.6% | 9.4% |
| 2015–19 | 7.9% | 5.4% | 5.6% |
| 2020–24 | 3.2% | 4.8% | 5.4% |
| Change | −8.7 pts | −3.8 pts | −2.7 pts |
The job market in ZIP 37821 has been strong: just 3.2% of the labor force was out of work and looking, well below the national rate of 5.4%. Since 2006–10, unemployment has fallen 8.7 points, a much bigger shift than nationally. 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).
ZIP 37821 compared with nearby ZIP codes
| ZIP code | Household size | Median age | Single parents | Renters | Vacant homes | Median year built | Median rent | Bachelor's degree | High school diploma | Unemployment |
|---|---|---|---|---|---|---|---|---|---|---|
| ZIP 37821 | 2.40 | 42.5 | 18.5% | 29.9% | 12.4% | 1983 | $806 | 9.4% | 84.5% | 3.2% |
| ZIP 37843 | 2.27 | 44.3 | 13.0% | 19.2% | 9.1% | 1988 | $739 | 12.0% | 85.5% | 7.5% |
| ZIP 37713 | 2.52 | 50.4 | 17.9% | 14.5% | 11.0% | 1985 | $723 | 8.4% | 75.6% | 4.4% |
| ZIP 37722 | 2.47 | 48.5 | 5.8% | 18.4% | 23.6% | 1992 | $1,053 | 14.1% | 86.4% | 4.0% |
| ZIP 37890 | 2.54 | 51.0 | 9.0% | 20.8% | 13.6% | 1984 | $817 | 19.7% | 83.1% | 4.6% |
| ZIP 37753 | 2.04 | 52.9 | 3.9% | 14.2% | 13.2% | 1989 | $1,256 | 18.9% | 88.0% | 3.1% |
| ZIP 37727 | 2.31 | 46.6 | 11.1% | 22.6% | 13.0% | 1989 | $623 | 13.8% | 82.5% | 1.5% |
| ZIP 37725 | 2.51 | 49.3 | 9.4% | 21.1% | 19.2% | 1993 | $996 | 21.4% | 89.6% | 5.7% |
| ZIP 37876 | 2.44 | 44.4 | 7.8% | 24.4% | 21.2% | 1998 | $1,194 | 22.9% | 89.5% | 2.8% |
| ZIP 28743 | 2.29 | 53.1 | 7.7% | 22.7% | 34.7% | 1990 | $557 | 20.9% | 91.0% | 1.7% |
| ZIP 37820 | 2.71 | 42.9 | 9.1% | 20.4% | 9.2% | 1989 | $888 | 17.3% | 90.8% | 3.0% |
All figures 2020–24.
Zip codes with similar populations: 60491, IL · 33542, FL · 33572, FL · 37932, TN · 39301, MS · 02863, RI · 46324, IN · 48846, MI · 53143, WI · 39702, MS
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 ZIP 37821. 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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