Franklin Park is a city located in Cook County Illinois. With a 2020 population of 17,325, it is the 148th largest city in Illinois and the 2094th largest city in the United States . Franklin Park is currently declining at a rate of -0.86% annually and its population has decreased by -5.50% since the most recent census, which recorded a population of 18,333 in 2010. Franklin Park reached it's highest population of 20,348 in 1970. Spanning over 5 miles, Franklin Park has a population density of 3,630 people per square mile.
The average household income in Franklin Park is $74,165 with a poverty rate of 9.30%. The median rental costs in recent years comes to $881 per month, and the median house value is $203,800. The median age in Franklin Park is 39.1 years, 36.6 years for males, and 40.9 years for females.