Highland is located in Madison county Illinois with a geographic area of 6.8 square miles. The total population in Highland is 10,122 with 49.5% male and 50.5% female. Children under age 5 represent 6.2% of the population, under age 18 equal 21.2% of the population and over age 65 is 18.8% of the population. The median household income is $64,332, per capita income is $33,027. There are a total of 4,403 housing units with 67.4% owner occupied. Education includes 26.3% of residents that are high school graduates and 28.9% with a bachelor's degree or higher. The average temperature in Highland in the summer is 74 degrees, and in the winter 27 degrees.
