
Fort Knox
- County:
- Hardin County
- County Seat:
- No
- Area (mi²):
- 20.289
- State:
- Kentucky
Fort Knox is a CDP located in Hardin County, Kentucky. Fort Knox has a 2025 population of 8,288. Fort Knox is currently declining at a rate of -1.45% annually and its population has decreased by -6.51% since the most recent census, which recorded a population of 8,865 in 2020.
The average household income in Fort Knox is $89,962 with a poverty rate of 8.02%. The median age in Fort Knox is 24.3 years: 23.4 years for males, and 27.2 years for females.