Dorchester is located in Grafton county New hampshire with a geographic area of square miles. The total population in Dorchester is 472 with 51.3% male and 48.7% female. Children under age 5 represent 3.2% of the population, under age 18 equal 13.6% of the population and over age 65 is 36.4% of the population. The median household income is $52,188, per capita income is $30,013. There are a total of 180 housing units with 92.2% owner occupied. Education includes 42.8% of residents that are high school graduates and 22.8% with a bachelor's degree or higher. The average temperature in Dorchester in the summer is 68 degrees, and in the winter 23 degrees.
