
Frankfort
- County:
- Clinton County
- County Seat:
- Yes
- Area (mi²):
- 8.055
- State:
- Indiana
Frankfort is a city located in Clinton County, Indiana. Frankfort has a 2025 population of 16,215. It is also the county seat of Clinton County. Frankfort is currently declining at a rate of -0.59% annually and its population has decreased by -2.9% since the most recent census, which recorded a population of 16,700 in 2020.
The average household income in Frankfort is $68,028 with a poverty rate of 10.99%. The median age in Frankfort is 35.1 years: 33.2 years for males, and 35.7 years for females.