Park Ridge is a city located in Cook County, Illinois. With a 2020 population of 36,818, it is the 50th largest city in Illinois and the 1071st largest city in the United States. Park Ridge is currently declining at a rate of -0.57% annually and its population has decreased by -1.77% since the most recent census, which recorded a population of 37,480 in 2010. Park Ridge reached it's highest population of 42,614 in 1970. Spanning over 7 miles, Park Ridge has a population density of 5,195 people per square mile.
The average household income in Park Ridge is $140,124 with a poverty rate of 4.52%. The median rental costs in recent years comes to $1,412 per month, and the median house value is $426,700. The median age in Park Ridge is 44.4 years, 42.2 years for males, and 46.5 years for females. For every 100 females there are 94.8 males.