Monroe is located in Green county Wisconsin with a geographic area of 5.6 square miles. The total population in Monroe is 10,573 with 49.7% male and 50.3% female. Children under age 5 represent 5.5% of the population, under age 18 equal 20.3% of the population and over age 65 is 22.8% of the population. The median household income is $51,996, per capita income is $31,308. There are a total of 5,013 housing units with 63.1% owner occupied. Education includes 34.7% of residents that are high school graduates and 19.2% with a bachelor's degree or higher. The average temperature in Monroe in the summer is 66 degrees, and in the winter 17 degrees.