Midlothian is a city located in Illinois. With a 2020 population of 14,208, it is the 165th largest city in Illinois and the 2390th largest city in the United States. Midlothian is currently declining at a rate of -0.93% annually and its population has decreased by -4.12% 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 5,040 people per square mile.
The average household income in Midlothian is $68,636 with a poverty rate of 8.91%. The median rental costs in recent years comes to $1,073 per month, and the median house value is $147,500. The median age in Midlothian is 38.7 years, 38.1 years for males, and 40.3 years for females. For every 100 females there are 106.3 males.