Washington is located in Sullivan county New hampshire with a geographic area of square miles. The total population in Washington is 1,057 with 50.7% male and 49.3% female. Children under age 5 represent 1.0% of the population, under age 18 equal 12.3% of the population and over age 65 is 28.2% of the population. The median household income is $73,929, per capita income is $38,701. There are a total of 466 housing units with 92.5% owner occupied. Education includes 33.0% of residents that are high school graduates and 22.1% with a bachelor's degree or higher. The average temperature in Washington in the summer is 68 degrees, and in the winter 23 degrees.
