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ZIP Code 37921
Knoxville, TN, Knox County
Population
28,717
Land area
15.9sq mi
People per sq mi
1,806
City
Knoxville
ZIP 37921 and nearby ZIP codes
ZIP 37921 at a glance
- ZIP 37921 (Knoxville) is about 11 times as dense as Tennessee as a whole.
- The median household income is $60,013, 14% below the Tennessee median of $69,595.
- A typical owner-occupied home is valued at $226,300 (21% below Tennessee) and median rent is $1,233 a month.
Local data for ZIP 37921
Counts from official public data
Housing and community stats
ZIP 37921, American Community Survey 2020-2024
Median household income
$60,013
Poverty rate
17.2%
Median home value
$226,300
Prices +3.4% in a year
Median rent
$1,233/mo
Homeownership
59.8%
Bachelor's or higher
26.3%
Median age
34.6
Average commute
20.0 min
Economy and federal money
Businesses, pandemic loans and political donations
Business establishments
703
ZIP Business Patterns 2023
Employees
26,636
$1.28B annual payroll
PPP loans
$78.95M
691 loans
Campaign donations
$62.98K
10% D, 71% R, 2026 cycle
Environment and hazard risk
ZIP 37921, from FEMA, NOAA and EPA
Natural hazard risk
Relatively Moderate
Top: lightning
Storm events since 1996
788
Countywide, mostly thunderstorm wind
Flood insurance policies
772
0.5% of homes, county
July high / Jan low
88° / 26°F
55.8 inches of rain a year
Health statistics
Share of adults in ZIP 37921, CDC PLACES estimates
Obesity
38.4%
U.S. 33.3% +5.1 pts
Diabetes
14.0%
U.S. 12.1% +1.9 pts
Smoking
20.3%
U.S. 12.8% +7.5 pts
Uninsured (18-64)
15.0%
U.S. 11.1% +3.9 pts
Cities in ZIP 37921
ZIP codes near 37921
| Name | Distance | Land area (sq mi) |
|---|---|---|
| 37912Knoxville | 2.6 mi | 10.6 |
| 37909Knoxville | 2.7 mi | 6.8 |
| 37919Knoxville | 4.6 mi | 19.1 |
| 37923Karns | 5.2 mi | 11.1 |
| 37916Knoxville | 5.6 mi | 1.4 |
| 37917Knoxville | 5.9 mi | 9.5 |
| 37849Powell | 6.1 mi | 39.7 |
| 37902Knoxville | 6.2 mi | 0.4 |
| 37931Karns | 6.2 mi | 28.4 |
| 37929Knoxville | 6.3 mi | 0 |
| 37915Knoxville | 7 mi | 1.9 |
| 37918Knoxville | 8.1 mi | 34.6 |
Frequently asked questions
- What city is ZIP code 37921?
- ZIP code 37921 is in Knoxville, TN (Knox County).
- What county is ZIP code 37921 in?
- ZIP code 37921 is mostly in Knox County, Tennessee.
- How many people live in ZIP code 37921?
- About 28,717 people live in the 37921 ZIP Code Tabulation Area, based on American Community Survey 5-year estimates.
Source: U.S. Census Bureau (ZIP Code Tabulation Areas, American Community Survey) · Data as of 12/31/2023. ZIP Code Tabulation Areas closely match, but are not identical to, USPS ZIP code delivery areas.