ZIP Code 37921

ZIP code 37921 is classified by USPS as a standard delivery area and covers roughly 39.7 square miles in Knoxville, Knox County, Tennessee. The area is home to 28,233 residents, producing a population density of 712 people per square mile, and falls within the New York time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 37921 against Tennessee and the nation.

On the economic side, the median household income for ZIP 37921 sits at $60,013 (10% below the Tennessee average), while per-capita income is $30,928. The poverty rate stands at 17.2% and the unemployment rate at 3.9%. On housing, the median home value is $226,300 (9% below the state average) with median rent at $1,233 per month, and 59.8% of occupied units are owner-occupied, a direct signal of whether 37921 behaves more like a homeowner neighborhood or a renter-heavy ZIP.

Education and household profile round out the picture: 26.3% of adults hold a bachelor's degree or higher, the median age is 34.6, and the average commute is 20 minutes. We also surface 10 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Knox County, so you can benchmark 37921 against its immediate geography rather than a national average alone. Every figure is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates, HUD Fair Market Rents, and FHFA Home Price Index data, no estimates, no proprietary scoring. Verify with HUD →