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City ZIP codes · Tennessee

Knoxville, TN ZIP Codes

31 ZIP codes use the postal name Knoxville, Tennessee (Census 2020 ZCTAs and GeoNames postal codes, October 2026): 19 residential and 12 for PO boxes or a single organization. Median household income runs from $47,416 in 37912 to $132,807 in 37922, 2.8 times as much (Census Bureau, ACS 2020-2024). Knoxville's most populous ZIP code is 37918, with 45,971 people (ACS 2020-2024); 27% of its land is in the city of Knoxville.

  • ACS2020-24
  • Census2020
  • GeoNames2026

Where are Knoxville's ZIP codes?

37902: $50k median household income37909: $67k median household income37912: $47k median household income37914: $60k median household income37915: $26k median household income37916: $15k median household income37917: $54k median household income37918: $70k median household income37919: $73k median household income37920: $66k median household income37921: $60k median household income37922: $133k median household income37923: $74k median household income37924: $80k median household income37929: – median household income37931: $92k median household income37932: $120k median household income37934: $132k median household income37938: $84k median household income3792037922379183791437938379323793137924379193792137934379233791737912379093791537902: $50k median household income37909: $67k median household income37912: $47k median household income37914: $60k median household income37915: $26k median household income37916: $15k median household income37917: $54k median household income37918: $70k median household income37919: $73k median household income37920: $66k median household income37921: $60k median household income37922: $133k median household income37923: $74k median household income37924: $80k median household income37931: $92k median household income37932: $120k median household income37934: $132k median household income37938: $84k median household income37920379223791837914379383793237931379243791937921379343792337917379123790937902: $50k median household income37909: $67k median household income37912: $47k median household income37914: $60k median household income37915: $26k median household income37916: $15k median household income37917: $54k median household income37918: $70k median household income37919: $73k median household income37920: $66k median household income37921: $60k median household income37922: $133k median household income37923: $74k median household income37924: $80k median household income37931: $92k median household income37932: $120k median household income37934: $132k median household income37938: $84k median household income37920379223791837914379383793237931379243791937921379233791737909
The 19 residential ZIP codes named Knoxville, shaded by median household income in national fifths (ACS 2020-2024). Select a ZIP to open it. <$54.1k$98.1k+no figure

Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).

How different are Knoxville's ZIP codes?

The highest median household income is in 37922 ($132,807), the lowest in 37912 ($47,416). Home values run from $210,800 in 37915 to $529,100 in 37934.

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013, B25077, B01003).

All 19 residential ZIP codes of Knoxville

Residential ZIP codes with the postal name Knoxville, TN, largest first (ACS 2020-2024); sort by any column
County
37918 Knox County 45,971 1,330 $70k $275k
37920 Knox County 44,995 622 $66k $268k
37922 Knox County 40,394 1,457 $133k $524k
37931 Knox County 31,842 1,123 $92k $360k
37919 Knox County 31,754 1,662 $73k $527k
37923 Knox County 30,131 2,717 $74k $333k
37921 Knox County 28,717 1,806 $60k $226k
37934 Knox County 28,272 1,622 $132k $529k
37932 Knox County 25,424 877 $120k $463k
37917 Knox County 24,615 2,591 $54k $219k
37912 Knox County 21,505 2,037 $47k $211k
37914 Knox County 21,478 541 $60k $218k
37938 Knox County 17,437 539 $84k $323k
37909 Knox County 16,774 2,466 $67k $313k
37916 Knox County 15,583 11,060 $15k $270k
37924 Knox County 14,420 518 $80k $251k
37915 Knox County 5,991 3,161 $26k $211k
37902 Knox County 2,412 5,457 $50k $688k
37929 Knox County no residents 0 – –

Download the 31 ZIP codes as CSV

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; 2023 Gazetteer land areas (2020 ZCTAs); town names from simplemaps US ZIP Codes (CC BY 4.0) and GeoNames (CC BY 4.0).

PO Box and single-organization ZIP codes in Knoxville

12 ZIP codes named Knoxville have no residential delivery area: post office boxes, or one organization (a large employer, an agency, a university) with its own code. The Census Bureau publishes no figures for them.

Knoxville, TN: ZIP codes without a residential area, for PO boxes or one organization (GeoNames postal codes; USPS does not publish openly which is which)
ZIPCounty
37901Knox County
37927Knox County
37928Knox County
37930Knox County
37933Knox County
37939Knox County
37940Knox County
37950Knox County
37995Knox County
37996Knox County
37997Knox County
37998Knox County

Source: GeoNames postal codes (CC BY 4.0); a ZIP code with no Census ZCTA has no residential delivery area.

Which counties do Knoxville's ZIP codes reach?

Knoxville's residential ZIP codes lie in 2 counties: Knox County (19 ZIP codes mainly there), Anderson County (part of a ZIP code).

Which places do Knoxville's ZIP codes cover?

A postal name is not a city limit. By the Census Bureau's places, Knoxville's residential ZIP codes cover Knoxville itself and 5 other places, each listed with the ZIP codes that have at least 5% of their land in it or hold most of the place:

Source: U.S. Census Bureau, 2020 ZCTA-to-place relationship file (shares of land).

Which first three digits do Knoxville's ZIP codes use?

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Every ZIP code of Knoxville starts with 379.

Three-digit prefixes of Knoxville's ZIP codes, the sectional center for each (USPS labeling list L005, effective October 1, 2026) and how many of the prefix's codes are Knoxville's
PrefixSectional centerHereAll codes
379 Knoxville, TN (SCF 377) 31 31

All 31 ZIP codes that start with 379 are Knoxville's: 19 residential codes and 12 PO Box or unique codes, sorted at Knoxville, TN (SCF 377).

Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.