Campbellsport is located in Fond du lac county Wisconsin with a geographic area of 1.3 square miles. The total population in Campbellsport is 1,830 with 49.8% male and 50.2% female. Children under age 5 represent 3.9% of the population, under age 18 equal 20.2% of the population and over age 65 is 15.5% of the population. The median household income is $61,016, per capita income is $30,982. There are a total of 771 housing units with 67.7% owner occupied. Education includes 41.9% of residents that are high school graduates and 14.9% with a bachelor's degree or higher. The average temperature in Campbellsport in the summer is 66 degrees, and in the winter 17 degrees.