Hanover is located in Jo daviess county Illinois with a geographic area of 1.1 square miles. The total population in Hanover is 713 with 44.7% male and 55.3% female. Children under age 5 represent 4.9% of the population, under age 18 equal 17.7% of the population and over age 65 is 32.8% of the population. The median household income is $42,941, per capita income is $24,451. There are a total of 380 housing units with 63.7% owner occupied. Education includes 35.3% of residents that are high school graduates and 10.0% with a bachelor's degree or higher. The average temperature in Hanover in the summer is 74 degrees, and in the winter 27 degrees.
