Jefferson is located in Jefferson county Wisconsin with a geographic area of 5.8 square miles. The total population in Jefferson is 8,011 with 48.0% male and 52.0% female. Children under age 5 represent 5.8% of the population, under age 18 equal 20.0% of the population and over age 65 is 17.5% of the population. The median household income is $62,629, per capita income is $35,521. There are a total of 3,418 housing units with 65.1% owner occupied. Education includes 30.3% of residents that are high school graduates and 23.3% with a bachelor's degree or higher. The average temperature in Jefferson in the summer is 71 degrees, and in the winter 17 degrees.
