Des Plaines is a city located in Cook County, Illinois. With a 2020 population of 58,243, it is the 20th largest city in Illinois and the 668th largest city in the United States. Des Plaines is currently declining at a rate of -0.61% annually and its population has decreased by -0.21% since the most recent census, which recorded a population of 58,364 in 2010. Des Plaines reached it's highest population of 59,138 in 2014. Spanning over 14 miles, Des Plaines has a population density of 4,094 people per square mile.
The average household income in Des Plaines is $85,585 with a poverty rate of 8.65%. The median rental costs in recent years comes to $1,093 per month, and the median house value is $251,700. The median age in Des Plaines is 43.3 years, 40.7 years for males, and 46 years for females. For every 100 females there are 98.6 males.