Forest Park is a city located in Cook County Illinois. With a 2020 population of 13,552, it is the 172nd largest city in Illinois and the 2477th largest city in the United States . Forest Park is currently declining at a rate of -0.56% annually and its population has decreased by -4.34% since the most recent census, which recorded a population of 14,167 in 2010. Forest Park reached it's highest population of 15,688 in 2000. Spanning over 2 miles, Forest Park has a population density of 5,643 people per square mile.
The average household income in Forest Park is $84,007 with a poverty rate of 9.65%. The median rental costs in recent years comes to $1,079 per month, and the median house value is $234,100. The median age in Forest Park is 39.5 years, 38.9 years for males, and 40.8 years for females.