Hanover township is located in Butler county Ohio with a geographic area of 1.8 square miles. The total population in Hanover township is 2,700 with 49.1% male and 50.9% female. Children under age 5 represent 5.9% of the population, under age 18 equal 29.0% of the population and over age 65 is 20.0% of the population. The median household income is $45,897, per capita income is $22,825. There are a total of 930 housing units with 60.0% owner occupied. Education includes 39.9% of residents that are high school graduates and 20.5% with a bachelor's degree or higher. The average temperature in Hanover township in the summer is 73 degrees, and in the winter 32 degrees.