Eau claire is located in Berrien county Michigan with a geographic area of 0.8 square miles. The total population in Eau claire is 763 with 53.5% male and 46.5% female. Children under age 5 represent 11.5% of the population, under age 18 equal 35.9% of the population and over age 65 is 8.8% of the population. The median household income is $55,000, per capita income is $19,147. There are a total of 234 housing units with 80.3% owner occupied. Education includes 25.2% of residents that are high school graduates and 38.0% with a bachelor's degree or higher. The average temperature in Eau claire in the summer is 67 degrees, and in the winter 23 degrees.