Porterfield is located in Marinette county Wisconsin with a geographic area of square miles. The total population in Porterfield is 1,858 with 50.4% male and 49.6% female. Children under age 5 represent 2.6% of the population, under age 18 equal 16.1% of the population and over age 65 is 22.5% of the population. The median household income is $63,010, per capita income is $37,484. There are a total of 924 housing units with 92.1% owner occupied. Education includes 31.5% of residents that are high school graduates and 18.9% with a bachelor's degree or higher. The average temperature in Porterfield in the summer is 66 degrees, and in the winter 17 degrees.