There are 15 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
4094655Green Road
4099540Trosper

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