about Jacksonville
Jacksonville is located in Morgan county Illinois with a geographic area of 10.6 square miles. The total population in Jacksonville is 18,784 with 50.5% male and 49.5% female. Children under age 5 represent 5.2% of the population, under age 18 equal 17.6% of the population and over age 65 is 19.1% of the population. The median household income is $46,500, per capita income is $26,034. There are a total of 7,132 housing units with 60.9% owner occupied. Education includes 35.5% of residents that are high school graduates and 22.3% with a bachelor's degree or higher. The average temperature in Jacksonville in the summer is 73 degrees, and in the winter 27 degrees.
