Marshfield is located in Wood county Wisconsin with a geographic area of 13.7 square miles. The total population in Marshfield is 18,214 with 47.4% male and 52.6% female. Children under age 5 represent 5.2% of the population, under age 18 equal 19.0% of the population and over age 65 is 21.8% of the population. The median household income is $52,322, per capita income is $36,578. There are a total of 8,963 housing units with 61.0% owner occupied. Education includes 33.6% of residents that are high school graduates and 29.8% with a bachelor's degree or higher. The average temperature in Marshfield in the summer is 67 degrees, and in the winter 17 degrees.
