Knox County, Tennessee ZIP codes
35 ZIP codes are in Knox County, plus 8 that cross in from neighboring counties. It's part of the Knoxville, TN metro area.
- ZIP codes
- 35
- Population in these ZIPs
- 504,996
- Avg. median income
- $78,700population-weighted
- Cities & towns
- 5
Click anywhere on the map to see which ZIP code it's in.
ZIP codes in Knox County
| ZIP code | City | Population | Median income | Typical home value |
|---|---|---|---|---|
| 37721 | Corryton | 14,306 | $64,892 | $329,500 |
| 37806 | Mascot | 3,674 | $59,605 | $279,900 |
| 37849 | Powell | 29,375 | $84,275 | $360,000 |
| 37871 | Strawberry Plains | 9,926 | $70,938 | $297,700 |
| 37901 PO Box | Knoxville | — | — | — |
| 37902 | Knoxville | 2,412 | $50,161 | $642,300 |
| 37909 | Knoxville | 16,774 | $66,984 | $376,900 |
| 37912 | Knoxville | 21,505 | $47,416 | $288,900 |
| 37914 | Knoxville | 21,478 | $59,856 | $251,700 |
| 37915 | Knoxville | 5,991 | $26,379 | $202,000 |
| 37916 | Knoxville | 15,583 | $14,925 | $500,800 |
| 37917 | Knoxville | 24,615 | $54,423 | $251,500 |
| 37918 | Knoxville | 45,971 | $69,752 | $330,600 |
| 37919 | Knoxville | 31,754 | $72,645 | $546,300 |
| 37920 | Knoxville | 44,995 | $66,362 | $318,300 |
| 37921 | Knoxville | 28,717 | $60,013 | $288,300 |
| 37922 | Knoxville | 40,394 | $132,807 | $640,300 |
| 37923 | Knoxville | 30,131 | $73,699 | $401,700 |
| 37924 | Knoxville | 14,420 | $80,112 | $341,400 |
| 37927 PO Box | Knoxville | — | — | — |
| 37928 PO Box | Knoxville | — | — | — |
| 37929 | Knoxville | 0 | — | — |
| 37930 PO Box | Knoxville | — | — | — |
| 37931 | Knoxville | 31,842 | $92,150 | $434,600 |
| 37932 | Knoxville | 25,424 | $119,703 | $534,700 |
| 37933 PO Box | Knoxville | — | — | — |
| 37934 | Knoxville | 28,272 | $132,264 | $650,200 |
| 37938 | Knoxville | 17,437 | $84,135 | $388,600 |
| 37939 PO Box | Knoxville | — | — | — |
| 37940 PO Box | Knoxville | — | — | — |
| 37950 PO Box | Knoxville | — | — | — |
| 37995 PO Box | Knoxville | — | — | — |
| 37996 PO Box | Knoxville | — | — | — |
| 37997 PO Box | Knoxville | — | — | — |
| 37998 PO Box | Knoxville | — | — | — |
ZIP codes partly in Knox County
These ZIP codes are mostly in a neighboring county but cover part of Knox County.
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 37709 | Blaine | Grainger County | 4,177 | $75,799 | $331,400 |
| 37754 | Heiskell | Anderson County | 4,211 | $75,774 | $326,800 |
| 37764 | Kodak | Sevier County | 12,562 | $70,989 | $360,900 |
| 37772 | Lenoir City | Loudon County | 14,646 | $100,711 | $508,200 |
| 37779 | Luttrell | Union County | 3,649 | $51,357 | $239,900 |
| 37807 | Maynardville | Union County | 11,069 | $62,673 | $288,900 |
| 37830 | Oak Ridge | Anderson County | 33,038 | $72,269 | $326,200 |
| 37853 | Rockford | Blount County | 3,365 | $69,075 | $337,300 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities and towns in Knox County
Nearby counties
Frequently asked questions
How many ZIP codes are in Knox County, Tennessee?
35 ZIP codes are mainly in Knox County, and 8 more ZIP codes from neighboring areas reach partly into it.
What cities are in Knox County?
ZIP codes in Knox County use the city names Corryton, Knoxville, Mascot, Powell and Strawberry Plains.
What metro area is Knox County in?
Knox County is part of the Knoxville, TN metropolitan statistical area.