ZIP Code 37721
ZIP Code Tabulation Area in Knox County, Tennessee.
- Population
- 14,649
- Median household income
- $64,674
- Median home value
- $218,900
+9.1%’19–’23
+13.5%’19–’23
+42.0%’19–’23
ZIP Code 37721 is a ZIP Code Tabulation Area in Knox County, Tennessee, home to about 14,649 residents. Its median household income of $64,674 runs below the Knox County figure of $71,662.
Between 2019 and 2023, ZIP Code 37721's population grew 9.1% from 13,426 to 14,649, while its median gross rent fell 1.3% from $973 to $960.
79.9% of homes are single-family detached houses. The typical home was built around 1993.
Demographics
ACS 2019–2023- Population
- 14,649
- Median age
- 41.1 yrs
- Median household income
- $64,674
- Median home value
- $218,900
- Median gross rent
- $960
- Housing units
- 5,844
- Homeownership rate
- 84.0%
- Bachelor's degree or higher
- 17.2%
- Unemployment rate
- 3.8%
Trends
ACS 5-year · 2019–202313,42614,649
$56,982$64,674
$154,200$218,900
$973$960
| Year | Population | Median household income | Median home value | Median gross rent |
|---|---|---|---|---|
| 2019 | 13,426 | $56,982 | $154,200 | $973 |
| 2020 | 14,024 | $54,332 | $158,600 | $1,013 |
| 2021 | 14,163 | $57,793 | $168,100 | $938 |
| 2022 | 14,522 | $60,422 | $195,700 | $936 |
| 2023 | 14,649 | $64,674 | $218,900 | $960 |
Each year is a US Census Bureau ACS 5-year estimate ending that year.
Age distribution
Under 56.3%
5 to 1716.3%
18 to 248.9%
25 to 3412.3%
35 to 4411.1%
45 to 5413.7%
55 to 6413.8%
65 to 7411.4%
75 and over6.3%
| Count | Share | |
|---|---|---|
| Under 5 | 922 | 6.3% |
| 5 to 17 | 2,388 | 16.3% |
| 18 to 24 | 1,302 | 8.9% |
| 25 to 34 | 1,798 | 12.3% |
| 35 to 44 | 1,619 | 11.1% |
| 45 to 54 | 2,007 | 13.7% |
| 55 to 64 | 2,022 | 13.8% |
| 65 to 74 | 1,674 | 11.4% |
| 75 and over | 917 | 6.3% |
Race & ethnicity
| Count | Share | |
|---|---|---|
| White (non-Hispanic) | 13,650 | 93.2% |
| Black or African American | 159 | 1.1% |
| American Indian & Alaska Native | 7 | 0.0% |
| Asian | 51 | 0.3% |
| Native Hawaiian & Pacific Islander | 0 | 0.0% |
| Some other race | 326 | 2.2% |
| Two or more races | 282 | 1.9% |
| Hispanic or Latino (any race) | 174 | 1.2% |
Educational attainment (age 25+)
No high school diploma10.1%
High school graduate38.6%
Some college or associate's34.1%
Bachelor's degree11.3%
Graduate or professional degree5.9%
| Count | Share | |
|---|---|---|
| No high school diploma | 1,018 | 10.1% |
| High school graduate | 3,870 | 38.6% |
| Some college or associate's | 3,425 | 34.1% |
| Bachelor's degree | 1,133 | 11.3% |
| Graduate or professional degree | 591 | 5.9% |
Commute to work
- Mean travel time to work
- 30 min
Drove alone88.1%
Carpooled5.9%
Public transit0.1%
Walked0.0%
Bicycle0.0%
Worked from home5.8%
Other means0.0%
How workers get to work
| Count | Share | |
|---|---|---|
| Drove alone | 5,944 | 88.1% |
| Carpooled | 401 | 5.9% |
| Public transit | 10 | 0.1% |
| Walked | 0 | 0.0% |
| Bicycle | 0 | 0.0% |
| Worked from home | 393 | 5.8% |
| Other means | 0 | 0.0% |
Travel time
| Count | Share | |
|---|---|---|
| Under 15 min | 722 | 11.4% |
| 15 to 29 min | 2,229 | 35.1% |
| 30 to 44 min | 2,131 | 33.5% |
| 45 to 59 min | 807 | 12.7% |
| 60+ min | 466 | 7.3% |
Households
- Average household size
- 2.64
- Poverty rate
- 8.5% (1,240 of 14,614)
| Count | Share | |
|---|---|---|
| Family households | 4,277 | 77.2% |
| Nonfamily households | 1,262 | 22.8% |
Housing
- Median year structure built
- 1993
Occupancy
| Count | Share | |
|---|---|---|
| Occupied | 5,539 | 94.8% |
| Vacant | 305 | 5.2% |
Tenure (of occupied units)
| Count | Share | |
|---|---|---|
| Owner-occupied | 4,650 | 84.0% |
| Renter-occupied | 889 | 16.0% |
1-unit, detached79.9%
1-unit, attached1.7%
2 to 4 units1.4%
5 to 19 units0.1%
20 or more units0.0%
Mobile home & other16.8%
Units in structure
| Count | Share | |
|---|---|---|
| 1-unit, detached | 4,672 | 79.9% |
| 1-unit, attached | 98 | 1.7% |
| 2 to 4 units | 84 | 1.4% |
| 5 to 19 units | 8 | 0.1% |
| 20 or more units | 0 | 0.0% |
| Mobile home & other | 982 | 16.8% |
Geography
- ZCTA
- 37721
- Land area
- 49 sq mi
- Water area
- 0.01 sq mi
- Center point
- 36.1306, -83.8149
Counties this ZIP covers
2Compare with nearby ZIP codes
6National ZIP rankings
21- Largest by population
- Most densely populated
- Highest median household income
- Highest median home value
- Most affordable home values
- Highest median gross rent
- Cheapest median gross rent
- Oldest by median age
- Youngest by median age
- Most college-educated
- Highest poverty rate
- Lowest poverty rate
- Highest homeownership rate
- Lowest homeownership rate
- Longest commutes
- Shortest commutes
- Largest households
- Newest housing
- Oldest housing
- Fastest-growing (2019–2023)
- Fastest-shrinking (2019–2023)