Frankfort is a city located in Clinton County Indiana. It is also the county seat of Clinton County. With a 2020 population of 16,024, it is the 56th largest city in Indiana and the 2222nd largest city in the United States . Frankfort is currently growing at a rate of 0.44% annually but its population has decreased by -2.42% since the most recent census, which recorded a population of 16,422 in 2010. Frankfort reached it's highest population of 16,662 in 2000. Spanning over 8 miles, Frankfort has a population density of 1,989 people per square mile.
The average household income in Frankfort is $53,861 with a poverty rate of 17.78%. The median rental costs in recent years comes to $711 per month, and the median house value is $83,400. The median age in Frankfort is 34.6 years, 33 years for males, and 35.9 years for females.