Hanover is located in Washington county Kansas with a geographic area of 0.6 square miles. The total population in Hanover is 604 with 50.7% male and 49.3% female. Children under age 5 represent 10.1% of the population, under age 18 equal 22.4% of the population and over age 65 is 23.5% of the population. The median household income is $56,250, per capita income is $29,532. There are a total of 255 housing units with 82.0% owner occupied. Education includes 33.7% of residents that are high school graduates and 30.2% with a bachelor's degree or higher. The average temperature in Hanover in the summer is 78 degrees, and in the winter 32 degrees.