Find the last 4 digits (ZIP+4) for an address in 37921

ZIP 37921, Knoxville, TN is filled in. Just type the street address.

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ZIP Code 37921 – Knoxville, TN

Knoxville, Tennessee · Knox County · Eastern time

ZIP code37921
CityKnoxville
StateTennessee
CountyKnox County
Population28,717
Time zoneEastern · local time
ZIP typeStandard (has a Census ZCTA area)
Land area15.9 sq mi
Center (lat, long)35.9783, -84.0019

Area codes in this area

865

These are the area codes that most often serve ZIP 37921 (including overlays). The exact area code depends on the phone number — landlines, mobiles and overlays can differ even on the same street.

Map

Nearby ZIP codes

37912 Knoxville · 2.3 mi37927 Knoxville · 2.4 mi37928 Knoxville · 2.4 mi37933 Knoxville · 2.4 mi37939 Knoxville · 2.4 mi37940 Knoxville · 2.4 mi37950 Knoxville · 2.4 mi37996 Knoxville · 2.4 mi

About ZIP 37921

ZIP code 37921 is assigned to Knoxville, Tennessee. It lies in Knox County. Its Census area covers about 15.9 square miles of land. The closest neighboring ZIP is 37912 (Knoxville), about 2.3 miles away.

Every address in 37921 also has a 4-digit add-on code (ZIP+4) that points to a smaller delivery area. Use the box above to find it.

Sources: US Census Bureau (ZCTA, county relationship files), GeoNames (CC BY 4.0), NANPA via NumberResearch.org (CC BY 4.0). Map © OpenStreetMap contributors. ZIP areas are approximate. Population: U.S. Census Bureau, ACS 5-year estimates, 2024 (ZCTA). Data sources