ZIP code 37721: Corryton, TN
37721 is a ZIP code in Corryton, Tennessee, mainly in Knox County, part of the Knoxville, TN metro area. About 14,306 people live here.
- Population
- 14,306
- Median household income
- $64,892
- Typical home value
- $329,500+2.1% in 12 months
- Median rent
- $973gross, per month
- Median age
- 43.3
- Homeowners
- 82.3%of occupied homes
Shaded: ZIP code 37721's area. Click anywhere on the map to see which ZIP code it's in.
ZIP codes within 10 milesWithin 25 miles
ZIP code 37721 details
| City | Corryton |
|---|---|
| State | Tennessee |
| County | Knox County (also partly Union County) |
| Metro area | Knoxville, TN |
| Time zone | Eastern Time (UTC−5), observes daylight saving time |
| Type | Standard (delivery area) |
| Land area | 49.3 sq mi, plus 0 sq mi of water |
| Population density | 290 people per sq mi |
| Bachelor's degree or higher | 17.8% of adults 25+ |
| Average commute | 30.3 minutes |
| Center coordinates | 36.13059, -83.81487 |
Median rent in 37721 by bedrooms
| Size | Median gross rent |
|---|---|
| 1 bedroom | $444/mo |
| 2 bedrooms | $957/mo |
| 3 bedrooms | $1,110/mo |
Gross rent includes utilities paid by the tenant. ACS 2020–2024; sizes with too few rentals to estimate are left out.
ZIP codes near 37721
| ZIP code | City | Distance | Population |
|---|---|---|---|
| 37806 | Mascot, TN | 5.8 mi | 3,674 |
| 37779 | Luttrell, TN | 6.4 mi | 3,649 |
| 37938 | Knoxville, TN | 6.9 mi | 17,437 |
| 37924 | Knoxville, TN | 7.2 mi | 14,420 |
| 37918 | Knoxville, TN | 7.7 mi | 45,971 |
| 37901 | Knoxville, TN | 7.8 mi | — |
| 37709 | Blaine, TN | 8.7 mi | 4,177 |
| 37807 | Maynardville, TN | 8.9 mi | 11,069 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Buying a home in 37721?
A typical home in ZIP code 37721 is worth about $329,500 (Zillow Home Value Index). The median household here earns $64,892 a year. See what buying here would cost per month, with Tennessee average taxes and insurance filled in.
Monthly payment for a $329,500 homeWhat can a $64,892 income afford?Rental property numbers
About ZIP code 37721
What city is ZIP code 37721?
ZIP code 37721 is in Corryton, TN, in Knox County.
What county is ZIP code 37721 in?
37721 is mainly in Knox County, Tennessee, and partly in Union County.
What is the population of ZIP code 37721?
About 14,306 people live in ZIP code 37721, according to the American Community Survey 2020–2024 5-year estimates.
What time zone is ZIP code 37721 in?
37721 is in Eastern Time (UTC−5). It observes daylight saving time.