Midlothian is located in Cook county Illinois with a geographic area of 2.8 square miles. The total population in Midlothian is 14,464 with 51.3% male and 48.7% female. Children under age 5 represent 5.8% of the population, under age 18 equal 22.3% of the population and over age 65 is 15.1% of the population. The median household income is $61,067, per capita income is $29,855. There are a total of 5,828 housing units with 78.4% owner occupied. Education includes 33.9% of residents that are high school graduates and 17.8% with a bachelor's degree or higher. The average temperature in Midlothian in the summer is 74 degrees, and in the winter 27 degrees.