Center harbor is located in Belknap county New hampshire with a geographic area of square miles. The total population in Center harbor is 881 with 50.6% male and 49.4% female. Children under age 5 represent 3.7% of the population, under age 18 equal 11.1% of the population and over age 65 is 43.6% of the population. The median household income is $90,217, per capita income is $45,759. There are a total of 412 housing units with 87.4% owner occupied. Education includes 20.6% of residents that are high school graduates and 49.8% with a bachelor's degree or higher. The average temperature in Center harbor in the summer is 68 degrees, and in the winter 23 degrees.