North haven is located in Knox county Maine with a geographic area of square miles. The total population in North haven is 449 with 50.1% male and 49.9% female. Children under age 5 represent 4.5% of the population, under age 18 equal 17.8% of the population and over age 65 is 26.5% of the population. The median household income is $74,375, per capita income is $45,212. There are a total of 193 housing units with 78.2% owner occupied. Education includes 20.2% of residents that are high school graduates and 36.8% with a bachelor's degree or higher. The average temperature in North haven in the summer is 68 degrees, and in the winter 25 degrees.