Port sanilac is located in Sanilac county Michigan with a geographic area of 0.9 square miles. The total population in Port sanilac is 654 with 49.5% male and 50.5% female. Children under age 5 represent 3.8% of the population, under age 18 equal 19.1% of the population and over age 65 is 36.5% of the population. The median household income is $43,068, per capita income is $26,050. There are a total of 325 housing units with 87.1% owner occupied. Education includes 26.8% of residents that are high school graduates and 30.5% with a bachelor's degree or higher. The average temperature in Port sanilac in the summer is 67 degrees, and in the winter 23 degrees.