
Knox County
- State:
- Kentucky
- County Seat:
- Barbourville
Knox County's estimated 2025 population is 29,836 with a growth rate of 0.07% in the past year according to the most recent United States census data. Knox County is the 36th largest county in Kentucky. The 2010 population was 31,846 and has seen a growth of -6.31% since that time.