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Zip Code 37721 — Corryton, TN

37721 is a ZIP Code associated with Corryton, TN, located within Knox. 37721 ranks #18 out of 23 ZIP codes in Knox County by population (and #171 out of 636 in TN). The area supports an estimated population of 14,306 residents across Data Pending housing units, with a population density of 112.1 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (36.131550, -83.808290)

Data MetricLocal Statistic
Postal / Zip Code37721
Primary CityCorryton
State / ProvinceTN
CountyKnox
Total Population14,306
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density112.1 people/sq mi
TimezoneAmerica/New_York

How 37721 Compares

MetricZIP 37721Knox CountyTN State Average
Population14,306504,996 (Total)7,058,868 (Total)
Average ZIP IncomeData PendingN/AN/A
Population Density112.1 /sq mi----
County Pop Rank#18 of 23----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 37806Mascot5.7 mi3,674N/A
Zip 37779Luttrell6.2 mi3,649N/A
Zip 37924Knoxville6.6 mi14,420N/A
Zip 37938Knoxville7.3 mi17,437N/A
Zip 37918Knoxville7.6 mi45,971N/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 →