Delavan is located in Walworth county Wisconsin with a geographic area of 7.0 square miles. The total population in Delavan is 8,296 with 50.2% male and 49.8% female. Children under age 5 represent 5.0% of the population, under age 18 equal 22.5% of the population and over age 65 is 16.8% of the population. The median household income is $58,424, per capita income is $26,748. There are a total of 3,444 housing units with 56.4% owner occupied. Education includes 30.6% of residents that are high school graduates and 20.4% with a bachelor's degree or higher. The average temperature in Delavan in the summer is 72 degrees, and in the winter 17 degrees.