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Zip Code 37921 — Knoxville, TN

37921 is a ZIP Code associated with Knoxville, TN, located within Knox. The postal region supports an estimated population of 28,717 residents across Data Pending housing units, with a population density of 697.3 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (35.978770, -84.000280)

Data MetricLocal Statistic
Postal / Zip Code37921
Primary CityKnoxville
State / ProvinceTN
CountyKnox
Total Population28,717
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density697.3 people/sq mi
TimezoneAmerica/New_York

How 37921 Compares

MetricZIP 37921Knox CountyTN State Average
Population28,717504,9967,058,868
Median IncomeData PendingN/AN/A
Population Density697.3 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 37912Knoxville2.2 mi21,505N/A
Zip 37909Knoxville2.5 mi16,774N/A
Zip 37916Knoxville4.1 mi15,583N/A
Zip 37919Knoxville4.5 mi31,754N/A
Zip 37902Knoxville4.6 mi2,412N/A

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →