Population 20,465 · Census ACS 2020–24
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Population and households in ZIP 37321
Household size in ZIP 37321
| Period | ZIP 37321 | Tennessee | U.S. |
|---|---|---|---|
| 2006–10 | 2.73 | 2.53 | 2.68 |
| 2010–14 | 2.60 | 2.57 | 2.73 |
| 2015–19 | 2.71 | 2.57 | 2.71 |
| 2020–24 | 2.49 | 2.53 | 2.65 |
| Change | −0.24 | +0.00 | −0.03 |
The average household in ZIP 37321 has 2.49 people, under the U.S. average of 2.65. Household size has dropped from 2.73 in 2006–10, a much bigger shift than nationally. Households are largest in the northwest and smallest in the south.
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 37321
| Period | ZIP 37321 | Tennessee | U.S. |
|---|---|---|---|
| 2006–10 | 34.1 | 38.3 | 37.7 |
| 2010–14 | 39.2 | 39.2 | 38.6 |
| 2015–19 | 38.4 | 39.9 | 39.6 |
| 2020–24 | 40.3 | 39.9 | 40.1 |
| Change | +6.2 | +1.6 | +2.3 |
At 40.3, the median age in ZIP 37321 is close to the national median of 40.1, so its age mix looks much like the country's. The median age has climbed from 34.1 in 2006–10, as it has nationally. The youngest areas are in the center, the oldest in the southeast.
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 37321
| Period | ZIP 37321 | Tennessee | U.S. |
|---|---|---|---|
| 2006–10 | 14.6% | 12.2% | 12.3% |
| 2010–14 | 13.0% | 12.0% | 12.3% |
| 2015–19 | 13.0% | 11.6% | 11.6% |
| 2020–24 | 13.4% | 11.8% | 11.6% |
| Change | −1.2 pts | −0.4 pts | −0.6 pts |
Single parents head just over one in eight households in ZIP 37321 (13.4%), a bit above the national share of 11.6%. Since 2006–10, the single-parent share has edged down 1.2 points, in line with the national trend.
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 37321
Renters in ZIP 37321
| Period | ZIP 37321 | Tennessee | U.S. |
|---|---|---|---|
| 2006–10 | 29.2% | 30.4% | 33.3% |
| 2010–14 | 35.0% | 32.9% | 35.6% |
| 2015–19 | 32.3% | 33.7% | 36.0% |
| 2020–24 | 32.5% | 33.1% | 34.8% |
| Change | +3.3 pts | +2.6 pts | +1.5 pts |
Renting in ZIP 37321 is about as common as it is nationally: 32.5% of households rent, against 34.8%. About half of owners (50.1%) have paid off their mortgages, well above the national share of 39.8%. Renting is most common in the center and least common in the northwest. The renter share has risen 3.3 points since 2006–10, mirroring the country.
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 37321
| Period | ZIP 37321 | Tennessee | U.S. |
|---|---|---|---|
| 2006–10 | 12.5% | 11.5% | 11.4% |
| 2010–14 | 12.4% | 11.8% | 11.4% |
| 2015–19 | 13.8% | 11.8% | 11.1% |
| 2020–24 | 10.4% | 10.1% | 9.6% |
| Change | −2.0 pts | −1.4 pts | −1.8 pts |
Vacancy in ZIP 37321 is close to the national rate: 10.4% of homes are empty, against 9.6%. Since 2006–10, vacancy has fallen 2.0 points, in line with the national trend.
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 37321
| Period | ZIP 37321 | Tennessee | U.S. |
|---|---|---|---|
| 2006–10 | 1983 | 1981 | 1974 |
| 2010–14 | 1983 | 1982 | 1975 |
| 2015–19 | 1987 | 1983 | 1977 |
| 2020–24 | 1991 | 1986 | 1980 |
| Change | +8 | +6 | +6 |
ZIP 37321 has newer housing than the country as a whole: the median home was built in 1991, versus 1980 nationally. The median year built has moved up from 1983 in 2006–10, a sign of steady new building. Newer construction is concentrated in the southwest, while the north 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 37321
| Period | ZIP 37321 | Tennessee | U.S. |
|---|---|---|---|
| 2006–10 | $569 | $761 | $965 |
| 2010–14 | $598 | $837 | $1,040 |
| 2015–19 | $706 | $961 | $1,213 |
| 2020–24 | $946 | $1,286 | $1,571 |
| Change | +$377 | +$526 | +$606 |
Rent in ZIP 37321 runs $946 a month at the median, utilities included, well below the U.S. median of $1,571. Rent has climbed $377 a month since 2006–10, up 66%, faster than rents rose nationally. The typical renter here spends 27.5% 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 south; the highest are in the east.
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 37321
Bachelor's degrees in ZIP 37321
| Period | ZIP 37321 | Tennessee | U.S. |
|---|---|---|---|
| 2006–10 | 12.9% | 23.9% | 28.4% |
| 2010–14 | 13.0% | 25.3% | 29.6% |
| 2015–19 | 16.0% | 27.9% | 32.1% |
| 2020–24 | 19.0% | 31.4% | 35.6% |
| Change | +6.2 pts | +7.5 pts | +7.2 pts |
College degrees are relatively uncommon in ZIP 37321: 19.0% of adults 25 and older hold a bachelor's or higher, well below the national share of 35.6%. The share with a degree has risen 6.2 points since 2006–10, mirroring the country. College graduates are most concentrated in the south and least in the northwest.
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 37321
| Period | ZIP 37321 | Tennessee | U.S. |
|---|---|---|---|
| 2006–10 | 74.9% | 83.3% | 84.9% |
| 2010–14 | 77.3% | 85.4% | 86.1% |
| 2015–19 | 79.5% | 87.6% | 87.7% |
| 2020–24 | 83.0% | 89.9% | 89.3% |
| Change | +8.0 pts | +6.6 pts | +4.3 pts |
About one in six adults in ZIP 37321 never finished high school, well above the national share: only 83.0% have a diploma or equivalent, against 89.3% nationally. The share with a diploma has risen 8.0 points since 2006–10, as it has nationally. Only 23 of the 298 Tennessee ZIP codes with 5,000+ people have a lower share of high school graduates.
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 37321
| Period | ZIP 37321 | Tennessee | U.S. |
|---|---|---|---|
| 2006–10 | 16.6% | 8.6% | 8.1% |
| 2010–14 | 11.0% | 9.6% | 9.4% |
| 2015–19 | 9.2% | 5.4% | 5.6% |
| 2020–24 | 5.2% | 4.8% | 5.4% |
| Change | −11.3 pts | −3.8 pts | −2.7 pts |
At 5.2%, unemployment in ZIP 37321 is close to the national rate of 5.4%. Since 2006–10, unemployment has fallen 11.3 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 37321 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 37321 | 2.49 | 40.3 | 13.4% | 32.5% | 10.4% | 1991 | $946 | 19.0% | 83.0% | 5.2% |
| ZIP 37332 | 2.44 | 35.2 | 23.6% | 26.1% | 9.6% | 1992 | $967 | 14.9% | 84.2% | 4.3% |
| ZIP 37373 | 2.77 | 45.8 | 5.9% | 14.5% | 10.1% | 1991 | $1,098 | 20.5% | 85.9% | 2.6% |
| ZIP 37338 | 2.59 | 47.1 | 13.0% | 19.0% | 16.9% | 1994 | $765 | 14.5% | 84.2% | 8.1% |
| ZIP 37322 | 2.59 | 44.4 | 7.0% | 22.7% | 14.1% | 1993 | $895 | 13.5% | 84.2% | 8.2% |
| ZIP 37308 | 2.59 | 46.3 | 4.1% | 9.3% | 14.0% | 1996 | $740 | 16.7% | 86.2% | 1.3% |
| ZIP 37336 | 2.60 | 47.5 | 7.3% | 13.9% | 6.1% | 1992 | $1,024 | 19.4% | 89.0% | 5.9% |
| ZIP 37370 | 2.60 | 46.8 | 10.9% | 17.4% | 5.6% | 1992 | $760 | 19.0% | 85.6% | 3.1% |
| ZIP 37309 | 2.68 | 47.5 | 6.8% | 14.5% | 6.1% | 1988 | $683 | 14.3% | 88.0% | 4.4% |
| ZIP 37303 | 2.47 | 42.3 | 14.4% | 28.8% | 12.1% | 1978 | $919 | 20.4% | 88.0% | 5.5% |
| ZIP 37327 | 2.67 | 44.8 | 10.9% | 22.5% | 11.4% | 1992 | $810 | 20.0% | 83.2% | 6.4% |
All figures 2020–24.
Zip codes with similar populations: 26501, WV · 63020, MO · 63084, MO · 76310, TX · 77303, TX · 78382, TX · 79065, TX · 85028, AZ · 32163, FL · 90254, CA
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 37321. 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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