Dunbarton is located in Merrimack county New hampshire with a geographic area of square miles. The total population in Dunbarton is 2,846 with 50.3% male and 49.7% female. Children under age 5 represent 3.7% of the population, under age 18 equal 24.6% of the population and over age 65 is 15.7% of the population. The median household income is $130,298, per capita income is $49,470. There are a total of 1,003 housing units with 94.0% owner occupied. Education includes 21.5% of residents that are high school graduates and 42.7% with a bachelor's degree or higher. The average temperature in Dunbarton in the summer is 68 degrees, and in the winter 23 degrees.
