Oak Lawn is a city located in Cook County Illinois. With a 2020 population of 54,206, it is the 23rd largest city in Illinois and the 726th largest city in the United States . Oak Lawn is currently declining at a rate of -0.75% annually and its population has decreased by -4.38% since the most recent census, which recorded a population of 56,690 in 2010. Oak Lawn reached it's highest population of 60,590 in 1980. Spanning over 9 miles, Oak Lawn has a population density of 6,324 people per square mile.
The average household income in Oak Lawn is $82,225 with a poverty rate of 9.75%. The median rental costs in recent years comes to $1,072 per month, and the median house value is $204,000. The median age in Oak Lawn is 40.8 years, 38.4 years for males, and 43.6 years for females.