Casco is located in Cumberland county Maine with a geographic area of 3.3 square miles. The total population in Casco is 717 with 42.3% male and 57.7% female. Children under age 5 represent 2.0% of the population, under age 18 equal 4.6% of the population and over age 65 is 31.9% of the population. The median household income is $29,167, per capita income is $29,941. There are a total of 456 housing units with 82.9% owner occupied. Education includes 13.4% of residents that are high school graduates and 48.9% with a bachelor's degree or higher. The average temperature in Casco in the summer is 68 degrees, and in the winter 25 degrees.