Midlothian is a city located in Cook County Illinois. With a 2020 population of 14,136, it is the 166th largest city in Illinois and the 2407th largest city in the United States . Midlothian is currently declining at a rate of -0.74% annually and its population has decreased by -4.61% since the most recent census, which recorded a population of 14,819 in 2010. Midlothian reached it's highest population of 15,939 in 1970. Spanning over 3 miles, Midlothian has a population density of 5,014 people per square mile.
The average household income in Midlothian is $71,556 with a poverty rate of 9.24%. The median rental costs in recent years comes to $1,034 per month, and the median house value is $150,400. The median age in Midlothian is 38.8 years, 39 years for males, and 38.4 years for females.