Sandwich is located in Carroll county New hampshire with a geographic area of square miles. The total population in Sandwich is 1,535 with 56.0% male and 44.0% female. Children under age 5 represent 3.2% of the population, under age 18 equal 10.2% of the population and over age 65 is 45.1% of the population. The median household income is $108,563, per capita income is $86,941. There are a total of 843 housing units with 94.4% owner occupied. Education includes 10.1% of residents that are high school graduates and 67.4% with a bachelor's degree or higher. The average temperature in Sandwich in the summer is 68 degrees, and in the winter 23 degrees.
