Port huron is located in St. clair county Michigan with a geographic area of 8.1 square miles. The total population in Port huron is 28,918 with 49.5% male and 50.5% female. Children under age 5 represent 6.3% of the population, under age 18 equal 22.0% of the population and over age 65 is 16.2% of the population. The median household income is $41,165, per capita income is $24,321. There are a total of 12,331 housing units with 56.3% owner occupied. Education includes 32.7% of residents that are high school graduates and 18.0% with a bachelor's degree or higher. The average temperature in Port huron in the summer is 70 degrees, and in the winter 23 degrees.