Hermantown is located in St. louis county Minnesota with a geographic area of 34.3 square miles. The total population in Hermantown is 9,577 with 51.5% male and 48.5% female. Children under age 5 represent 6.5% of the population, under age 18 equal 26.6% of the population and over age 65 is 15.6% of the population. The median household income is $80,500, per capita income is $45,127. There are a total of 3,546 housing units with 74.0% owner occupied. Education includes 27.6% of residents that are high school graduates and 39.7% with a bachelor's degree or higher. The average temperature in Hermantown in the summer is 68 degrees, and in the winter 9 degrees.