Dixon is located in Lee county Illinois with a geographic area of 7.8 square miles. The total population in Dixon is 15,544 with 55.5% male and 44.5% female. Children under age 5 represent 5.5% of the population, under age 18 equal 19.1% of the population and over age 65 is 17.4% of the population. The median household income is $46,479, per capita income is $23,516. There are a total of 5,905 housing units with 60.2% owner occupied. Education includes 34.2% of residents that are high school graduates and 22.2% with a bachelor's degree or higher. The average temperature in Dixon in the summer is 70 degrees, and in the winter 27 degrees.