Portage lake is located in Aroostook county Maine with a geographic area of square miles. The total population in Portage lake is 374 with 52.7% male and 47.3% female. Children under age 5 represent 0.8% of the population, under age 18 equal 16.0% of the population and over age 65 is 36.9% of the population. The median household income is $41,250, per capita income is $30,187. There are a total of 190 housing units with 87.4% owner occupied. Education includes 35.8% of residents that are high school graduates and 17.4% with a bachelor's degree or higher. The average temperature in Portage lake in the summer is 68 degrees, and in the winter 25 degrees.