Fort Thomas
- County:
- Campbell County
- County Seat:
- No
- Area (mi²):
- 5.674
- State:
- Kentucky
Fort Thomas is a city located in Campbell County, Kentucky. Fort Thomas has a 2026 population of 16,914. Fort Thomas is currently declining at a rate of -0.42% annually and its population has decreased by -2.89% since the most recent census, which recorded a population of 17,418 in 2020.