Mariaville is located in Hancock county Maine with a geographic area of square miles. The total population in Mariaville is 496 with 55.2% male and 44.8% female. Children under age 5 represent 3.0% of the population, under age 18 equal 15.3% of the population and over age 65 is 15.3% of the population. The median household income is $50,313, per capita income is $25,648. There are a total of 216 housing units with 69.4% owner occupied. Education includes 31.9% of residents that are high school graduates and 27.8% with a bachelor's degree or higher. The average temperature in Mariaville in the summer is 68 degrees, and in the winter 25 degrees.