ZIP code 37921
Where is ZIP code 37921?
Knoxville, Tennessee
Knox County · Standard ZIP code
ZIP code 37921 belongs to Knoxville, Tennessee in Knox County. 37921 is a standard ZIP code, so it covers street addresses as well as PO Boxes. It is in the Eastern Time zone and uses area code 865. About 28,717 people live in the 37921 area, where the median household income is $60,013. The closest ZIP codes are 37912 (Knoxville, 2.3 mi northeast), 37927 (Knoxville, 2.4 mi east) and 37928 (Knoxville, 2.4 mi east).
| ZIP code | 37921 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Knoxville |
| State | Tennessee (TN) |
| County | Knox County |
| Time zone | Eastern Time · now |
| Area code | 865 |
| Coordinates | 35.9793, -84.003 map |
| 3-digit prefix | 379 |
Population and income in 37921
| Population | 28,717 · higher than 88% of Tennessee ZIP codes |
|---|---|
| People per square mile | 1,806 · higher than 91% of Tennessee ZIP codes |
| Median age | 34.6 years · lower than 87% of Tennessee ZIP codes |
| Men / women | 47% / 53% |
| Median household income | $60,013 · lower than 54% of Tennessee ZIP codes |
| Income per person | $30,928 |
| Below the poverty line | 17% |
| Bachelor’s degree or higher | 26% of adults 25+ |
| Median home value | $226,300 · higher than 56% of Tennessee ZIP codes |
| Median rent | $1,233 a month |
| Housing units | 12,957 |
| Households | 11,634 (2.46 people on average) |
| Owners / renters | 60% / 40% |
| Land area | 15.9 sq mi (plus 0.01 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 37921. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 37921
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 37912 | Knoxville, TN | 2.3 mi NE | Standard |
| 37927 | Knoxville, TN | 2.4 mi E | PO Box only |
| 37928 | Knoxville, TN | 2.4 mi E | PO Box only |
| 37933 | Knoxville, TN | 2.4 mi E | PO Box only |
| 37939 | Knoxville, TN | 2.4 mi E | PO Box only |
| 37940 | Knoxville, TN | 2.4 mi E | PO Box only |
| 37950 | Knoxville, TN | 2.4 mi E | PO Box only |
| 37996 | Knoxville, TN | 2.4 mi E | Unique |
| 37997 | Knoxville, TN | 2.4 mi E | Unique |
| 37909 | Knoxville, TN | 2.6 mi SW | Standard |
| 37919 | Knoxville, TN | 3.8 mi S | Standard |
| 37916 | Knoxville, TN | 4.2 mi SE | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 37921 or measure the distance to another ZIP code.
How to address mail to 37921
123 MAIN ST
KNOXVILLE TN 37921
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (37921-XXXX) helps mail sort faster but isn’t required.
Other ZIP codes in Knoxville, TN
- 37901
- 37902
- 37909
- 37912
- 37914
- 37915
- 37916
- 37917
- 37918
- 37919
- 37920
- 37922
- 37923
- 37924
- 37927
- 37928
- 37929
- 37930
- 37931
- 37932
- 37933
- 37938
- 37939
- 37940
- 37950
- 37995
- 37996
- 37997
- 37998
All Knoxville ZIP codes with population and income →
Questions
- What city is ZIP code 37921?
- 37921 is a Knoxville, Tennessee ZIP code.
- What county is 37921 in?
- ZIP code 37921 is in Knox County, Tennessee.
- What time zone is ZIP code 37921 in?
- 37921 is in the Eastern Time zone (America/New_York).
- What area code is 37921?
- Phone numbers in ZIP code 37921 use area code 865.
- What is the population of ZIP code 37921?
- About 28,717 people live in ZIP code 37921, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 37921?
- The median household income in 37921 is $60,013 a year, lower than 54% of Tennessee ZIP codes.
- What ZIP codes are near 37921?
- The nearest ZIP codes to 37921 are 37912 (Knoxville, 2.3 miles), 37927 (Knoxville, 2.4 miles), 37928 (Knoxville, 2.4 miles) and 37933 (Knoxville, 2.4 miles).