There are 16 zip codes in Knox County, Kentucky. The most populated is 40906, located in Barbourville. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
4090611,665Barbourville
407343,207Gray
409352,132Flat Lick
407711,765Woodbine
40915905Bimble
40903781Artemus
40943750Girdler
40923625Cannon
40949483Heidrick
40982408Scalf
40997347Walker
40953334Hinkle
40921155Bryants Store
40939137Fourmile
4094655Green Road
4099540Trosper
showing: 16 rows

Zip Codes in Knox County, Kentucky by Population (2024)