Ontonagon is located in Ontonagon county Michigan with a geographic area of 3.7 square miles. The total population in Ontonagon is 1,474 with 47.3% male and 52.7% female. Children under age 5 represent 1.7% of the population, under age 18 equal 9.7% of the population and over age 65 is 38.7% of the population. The median household income is $39,032, per capita income is $25,065. There are a total of 744 housing units with 75.1% owner occupied. Education includes 36.4% of residents that are high school graduates and 21.6% with a bachelor's degree or higher. The average temperature in Ontonagon in the summer is 67 degrees, and in the winter 23 degrees.
