Toluca is located in Marshall county Illinois with a geographic area of 1.1 square miles. The total population in Toluca is 1,287 with 44.4% male and 55.6% female. Children under age 5 represent 5.4% of the population, under age 18 equal 17.0% of the population and over age 65 is 24.5% of the population. The median household income is $57,188, per capita income is $31,428. There are a total of 577 housing units with 80.4% owner occupied. Education includes 36.2% of residents that are high school graduates and 18.5% with a bachelor's degree or higher. The average temperature in Toluca in the summer is 72 degrees, and in the winter 27 degrees.