Grand isle is located in Aroostook county Maine with a geographic area of 0.6 square miles. The total population in Grand isle is 189 with 65.6% male and 34.4% female. Children under age 5 represent 0.0% of the population, under age 18 equal 7.4% of the population and over age 65 is 28.6% of the population. The median household income is $26,250, per capita income is $27,122. There are a total of 104 housing units with 84.6% owner occupied. Education includes 58.7% of residents that are high school graduates and 1.9% with a bachelor's degree or higher. The average temperature in Grand isle in the summer is 68 degrees, and in the winter 25 degrees.
