ZIP Code 37921
ZIP Code Tabulation Area in Knox County, Tennessee.
- Population
- 29,064
- Median household income
- $57,813
- Median home value
- $204,300
+6.6%’19–’23
+19.2%’19–’23
+56.7%’19–’23
Covering part of Knox County, Tennessee, ZIP Code 37921 has about 29,064 residents. At $57,813, its median household income sits below Knox County's $71,662.
Between 2019 and 2023, ZIP Code 37921's population grew 6.6% from 27,259 to 29,064, while its median gross rent rose 29.6% from $885 to $1,147.
70.5% of homes are single-family detached houses. The typical home was built around 1978.
Demographics
ACS 2019–2023- Population
- 29,064
- Median age
- 34.0 yrs
- Median household income
- $57,813
- Median home value
- $204,300
- Median gross rent
- $1,147
- Housing units
- 12,969
- Homeownership rate
- 60.9%
- Bachelor's degree or higher
- 26.6%
- Unemployment rate
- 3.7%
Trends
ACS 5-year · 2019–202327,25929,064
$48,481$57,813
$130,400$204,300
$885$1,147
| Year | Population | Median household income | Median home value | Median gross rent |
|---|---|---|---|---|
| 2019 | 27,259 | $48,481 | $130,400 | $885 |
| 2020 | 27,522 | $49,984 | $133,700 | $931 |
| 2021 | 28,397 | $53,000 | $144,800 | $994 |
| 2022 | 28,571 | $55,517 | $172,300 | $1,083 |
| 2023 | 29,064 | $57,813 | $204,300 | $1,147 |
Each year is a US Census Bureau ACS 5-year estimate ending that year.
Age distribution
Under 56.4%
5 to 1719.2%
18 to 248.1%
25 to 3417.7%
35 to 4412.1%
45 to 5412.3%
55 to 6410.9%
65 to 748.4%
75 and over4.8%
| Count | Share | |
|---|---|---|
| Under 5 | 1,851 | 6.4% |
| 5 to 17 | 5,582 | 19.2% |
| 18 to 24 | 2,360 | 8.1% |
| 25 to 34 | 5,146 | 17.7% |
| 35 to 44 | 3,528 | 12.1% |
| 45 to 54 | 3,585 | 12.3% |
| 55 to 64 | 3,169 | 10.9% |
| 65 to 74 | 2,444 | 8.4% |
| 75 and over | 1,399 | 4.8% |
Race & ethnicity
| Count | Share | |
|---|---|---|
| White (non-Hispanic) | 19,419 | 66.8% |
| Black or African American | 5,572 | 19.2% |
| American Indian & Alaska Native | 21 | 0.1% |
| Asian | 208 | 0.7% |
| Native Hawaiian & Pacific Islander | 0 | 0.0% |
| Some other race | 118 | 0.4% |
| Two or more races | 1,213 | 4.2% |
| Hispanic or Latino (any race) | 2,513 | 8.6% |
Educational attainment (age 25+)
No high school diploma12.9%
High school graduate30.4%
Some college or associate's30.1%
Bachelor's degree18.1%
Graduate or professional degree8.4%
| Count | Share | |
|---|---|---|
| No high school diploma | 2,485 | 12.9% |
| High school graduate | 5,859 | 30.4% |
| Some college or associate's | 5,808 | 30.1% |
| Bachelor's degree | 3,496 | 18.1% |
| Graduate or professional degree | 1,623 | 8.4% |
Commute to work
- Mean travel time to work
- 21 min
Drove alone75.9%
Carpooled10.7%
Public transit0.7%
Walked0.9%
Bicycle0.0%
Worked from home10.7%
Other means1.1%
How workers get to work
| Count | Share | |
|---|---|---|
| Drove alone | 10,518 | 75.9% |
| Carpooled | 1,479 | 10.7% |
| Public transit | 97 | 0.7% |
| Walked | 125 | 0.9% |
| Bicycle | 0 | 0.0% |
| Worked from home | 1,478 | 10.7% |
| Other means | 152 | 1.1% |
Travel time
| Count | Share | |
|---|---|---|
| Under 15 min | 3,082 | 24.9% |
| 15 to 29 min | 6,639 | 53.7% |
| 30 to 44 min | 2,096 | 16.9% |
| 45 to 59 min | 335 | 2.7% |
| 60+ min | 219 | 1.8% |
Households
- Average household size
- 2.51
- Poverty rate
- 17.1% (4,962 of 28,968)
| Count | Share | |
|---|---|---|
| Family households | 7,035 | 61.1% |
| Nonfamily households | 4,483 | 38.9% |
Housing
- Median year structure built
- 1978
Occupancy
| Count | Share | |
|---|---|---|
| Occupied | 11,518 | 88.8% |
| Vacant | 1,451 | 11.2% |
Tenure (of occupied units)
| Count | Share | |
|---|---|---|
| Owner-occupied | 7,009 | 60.9% |
| Renter-occupied | 4,509 | 39.1% |
1-unit, detached70.5%
1-unit, attached5.3%
2 to 4 units6.9%
5 to 19 units11.9%
20 or more units2.6%
Mobile home & other2.7%
Units in structure
| Count | Share | |
|---|---|---|
| 1-unit, detached | 9,143 | 70.5% |
| 1-unit, attached | 689 | 5.3% |
| 2 to 4 units | 898 | 6.9% |
| 5 to 19 units | 1,547 | 11.9% |
| 20 or more units | 341 | 2.6% |
| Mobile home & other | 351 | 2.7% |
Geography
- ZCTA
- 37921
- Land area
- 16 sq mi
- Water area
- 0.01 sq mi
- Center point
- 35.9783, -84.0019
Counties this ZIP covers
1Compare 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)