There are 23 zip codes in Knox County, Tennessee. The most populated is 37918, located in Knoxville. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
City
Population
37918Knoxville45,741
37920Knoxville42,537
37922Knoxville39,373
37923Knoxville31,364
37919Knoxville30,956
37931Knoxville30,463
37849Powell29,022
37921Knoxville28,571
37934Farragut27,675
37917Knoxville25,418
37912Knoxville22,051
37932Knoxville21,117
37914Knoxville20,579
37938Knoxville17,366
37909Knoxville16,868
37916Knoxville14,864
37721Corryton14,522
37924Knoxville14,092
37871Strawberry Plains9,487
37915Knoxville5,318
37806Mascot2,884
37902Knoxville2,384
37929Knoxville0

Knox County, Tennessee Zip Codes by Population (2024)