Population 53,307 · Census ACS 2020–24
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Population and households in ZIP 37421
Household size in ZIP 37421
| Period | ZIP 37421 | Chattanooga area | Tennessee | U.S. |
|---|---|---|---|---|
| 2006–10 | 2.35 | 2.48 | 2.53 | 2.68 |
| 2010–14 | 2.41 | 2.53 | 2.57 | 2.73 |
| 2015–19 | 2.47 | 2.50 | 2.57 | 2.71 |
| 2020–24 | 2.41 | 2.50 | 2.53 | 2.65 |
| Change | +0.06 | +0.02 | +0.00 | −0.03 |
Households in ZIP 37421 run small, averaging 2.41 people against 2.65 nationally, which usually means more singles and couples and fewer children. Since 2006–10, household size has crept up from 2.35, even as the national average fell. The biggest households, usually families with children, are concentrated in the west.
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 37421
| Period | ZIP 37421 | Chattanooga area | Tennessee | U.S. |
|---|---|---|---|---|
| 2006–10 | 40.3 | 39.6 | 38.3 | 37.7 |
| 2010–14 | 41.3 | 40.5 | 39.2 | 38.6 |
| 2015–19 | 41.1 | 41.3 | 39.9 | 39.6 |
| 2020–24 | 41.4 | 41.2 | 39.9 | 40.1 |
| Change | +1.0 | +1.6 | +1.6 | +2.3 |
At 41.4, the median age in ZIP 37421 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 40.3 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 ZIP 37421
| Period | ZIP 37421 | Chattanooga area | Tennessee | U.S. |
|---|---|---|---|---|
| 2006–10 | 9.0% | 11.2% | 12.2% | 12.3% |
| 2010–14 | 9.7% | 11.2% | 12.0% | 12.3% |
| 2015–19 | 9.2% | 9.8% | 11.6% | 11.6% |
| 2020–24 | 11.5% | 11.1% | 11.8% | 11.6% |
| Change | +2.5 pts | −0.1 pts | −0.4 pts | −0.6 pts |
Single-parent households are about as common in ZIP 37421 as they are nationally: 11.5%, against 11.6%. The single-parent share has risen 2.5 points since 2006–10, even as the national share fell.
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 37421
Renters in ZIP 37421
| Period | ZIP 37421 | Chattanooga area | Tennessee | U.S. |
|---|---|---|---|---|
| 2006–10 | 35.8% | 30.9% | 30.4% | 33.3% |
| 2010–14 | 36.9% | 32.2% | 32.9% | 35.6% |
| 2015–19 | 41.5% | 32.9% | 33.7% | 36.0% |
| 2020–24 | 39.7% | 31.8% | 33.1% | 34.8% |
| Change | +3.9 pts | +1.0 pts | +2.6 pts | +1.5 pts |
Renting is a bit more common in ZIP 37421 than nationally: 39.7% of households rent their homes, against 34.8% for the U.S. Among owners, 40.9% have paid off their mortgages, about the same as nationally. Rentals cluster in the west; owners are most common in the east. The renter share is up 3.9 points from 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 37421
| Period | ZIP 37421 | Chattanooga area | Tennessee | U.S. |
|---|---|---|---|---|
| 2006–10 | 10.1% | 11.3% | 11.5% | 11.4% |
| 2010–14 | 11.4% | 11.8% | 11.8% | 11.4% |
| 2015–19 | 10.3% | 11.6% | 11.8% | 11.1% |
| 2020–24 | 8.6% | 9.9% | 10.1% | 9.6% |
| Change | −1.6 pts | −1.4 pts | −1.4 pts | −1.8 pts |
About as many homes sit empty in ZIP 37421 as nationally: 8.6%, against 9.6%. Vacancy has fallen 1.6 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 37421
| Period | ZIP 37421 | Chattanooga area | Tennessee | U.S. |
|---|---|---|---|---|
| 2006–10 | 1985 | 1977 | 1981 | 1974 |
| 2010–14 | 1985 | 1978 | 1982 | 1975 |
| 2015–19 | 1987 | 1980 | 1983 | 1977 |
| 2020–24 | 1991 | 1983 | 1986 | 1980 |
| Change | +6 | +6 | +6 | +6 |
ZIP 37421 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 1985 in 2006–10, a sign of steady new building. Newer construction is concentrated in the south, while the west 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 37421
| Period | ZIP 37421 | Chattanooga area | Tennessee | U.S. |
|---|---|---|---|---|
| 2006–10 | $972 | $731 | $761 | $965 |
| 2010–14 | $1,004 | $803 | $837 | $1,040 |
| 2015–19 | $1,130 | $876 | $961 | $1,213 |
| 2020–24 | $1,486 | $1,184 | $1,286 | $1,571 |
| Change | +$514 | +$454 | +$526 | +$606 |
The median renter in ZIP 37421 pays $1,486 a month for rent and utilities, below the national median of $1,571. Still, rents here are higher than in the Chattanooga area as a whole ($1,184). Rent has climbed $514 a month since 2006–10, up 53%, a slower climb than the nation's. The typical renter here spends 31.2% of household income on rent, just over the 30% mark often used to define affordable rent.
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 37421
Bachelor's degrees in ZIP 37421
| Period | ZIP 37421 | Chattanooga area | Tennessee | U.S. |
|---|---|---|---|---|
| 2006–10 | 33.6% | 22.9% | 23.9% | 28.4% |
| 2010–14 | 33.4% | 24.3% | 25.3% | 29.6% |
| 2015–19 | 36.9% | 27.2% | 27.9% | 32.1% |
| 2020–24 | 37.3% | 31.6% | 31.4% | 35.6% |
| Change | +3.7 pts | +8.7 pts | +7.5 pts | +7.2 pts |
Nearly four in ten adults 25 and older in ZIP 37421 (37.3%) hold at least a bachelor's degree, close to the national share of 35.6%. The share is higher than in the wider Chattanooga area (31.6%). The share with a degree is up 3.7 points from 2006–10, as it has nationally.
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 37421
| Period | ZIP 37421 | Chattanooga area | Tennessee | U.S. |
|---|---|---|---|---|
| 2006–10 | 89.1% | 82.5% | 83.3% | 84.9% |
| 2010–14 | 88.8% | 84.9% | 85.4% | 86.1% |
| 2015–19 | 91.8% | 87.4% | 87.6% | 87.7% |
| 2020–24 | 91.0% | 89.5% | 89.9% | 89.3% |
| Change | +1.8 pts | +7.0 pts | +6.6 pts | +4.3 pts |
High school completion in ZIP 37421 is a bit above the national rate: 91.0% of adults have a diploma or equivalent, against 89.3%. That is in line with the rest of the Chattanooga area. The share with a diploma is up 1.8 points from 2006–10, mirroring the country.
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 37421
| Period | ZIP 37421 | Chattanooga area | Tennessee | U.S. |
|---|---|---|---|---|
| 2006–10 | 5.6% | 9.1% | 8.6% | 8.1% |
| 2010–14 | 6.1% | 9.3% | 9.6% | 9.4% |
| 2015–19 | 3.1% | 4.9% | 5.4% | 5.6% |
| 2020–24 | 4.3% | 4.7% | 4.8% | 5.4% |
| Change | −1.2 pts | −4.4 pts | −3.8 pts | −2.7 pts |
Unemployment in ZIP 37421 runs below the national rate: 4.3% of the labor force was out of work and looking, against 5.4% nationally. Unemployment has edged down 1.2 points since 2006–10, as it has 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 37421 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 37421 | 2.41 | 41.4 | 11.5% | 39.7% | 8.6% | 1991 | $1,486 | 37.3% | 91.0% | 4.3% |
| ZIP 30726 | 2.57 | 44.6 | 9.2% | 19.1% | 13.5% | 1983 | $1,111 | 29.3% | 92.7% | 0.0% |
| ZIP 37411 | 2.35 | 39.7 | 12.6% | 38.1% | 8.8% | 1956 | $1,082 | 30.1% | 91.9% | 7.3% |
| ZIP 37416 | 2.27 | 39.3 | 9.1% | 39.5% | 6.5% | 1977 | $1,119 | 32.6% | 93.8% | 6.9% |
| ZIP 37315 | 2.70 | 25.3 | 10.1% | 37.6% | 20.8% | 1981 | $1,401 | 49.6% | 91.2% | 1.5% |
| ZIP 37412 | 2.39 | 39.3 | 12.4% | 41.8% | 9.2% | 1965 | $1,224 | 24.7% | 85.0% | 4.7% |
| ZIP 37406 | 2.58 | 36.0 | 19.9% | 51.5% | 12.8% | 1969 | $1,020 | 21.8% | 88.0% | 7.9% |
| ZIP 37363 | 2.64 | 43.5 | 7.2% | 24.9% | 7.4% | 2002 | $1,690 | 45.0% | 95.2% | 3.4% |
| ZIP 37302 | 2.68 | 45.7 | 3.5% | 18.8% | 12.7% | 1994 | $891 | 42.6% | 95.2% | 0.8% |
| ZIP 37404 | 3.11 | 31.7 | 20.1% | 55.1% | 15.3% | 1951 | $1,131 | 27.9% | 79.2% | 8.3% |
| ZIP 30736 | 2.65 | 42.0 | 12.4% | 16.5% | 6.8% | 1993 | $1,000 | 27.1% | 92.0% | 3.8% |
All figures 2020–24.
Zip codes with similar populations: 76119, TX · 91344, CA · 90221, CA · 89074, NV · 87507, NM · 85365, AZ · 85295, AZ · 85207, AZ · 85022, AZ · 84120, UT
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 37421. 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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