Spencer is located in Marathon county Wisconsin with a geographic area of 2.0 square miles. The total population in Spencer is 1,690 with 53.0% male and 47.0% female. Children under age 5 represent 7.9% of the population, under age 18 equal 23.8% of the population and over age 65 is 15.2% of the population. The median household income is $57,664, per capita income is $35,519. There are a total of 765 housing units with 72.0% owner occupied. Education includes 40.7% of residents that are high school graduates and 16.5% with a bachelor's degree or higher. The average temperature in Spencer in the summer is 66 degrees, and in the winter 17 degrees.
