Frankfort Square is a city located in Illinois. Frankfort Square has a 2020 population of 8,768. Frankfort Square is currently declining at a rate of 0.00% annually and its population has decreased by -5.48% since the most recent census, which recorded a population of 9,276 in 2010. Frankfort Square reached it's highest population of 9,277 in 2011.
The average household income in Frankfort Square is $109,910 with a poverty rate of 1.57%. The median rental costs in recent years comes to $1,220 per month, and the median house value is $223,600. The median age in Frankfort Square is 39.8 years, 39.9 years for males, and 39.1 years for females.