Jefferson is located in Coos county New hampshire with a geographic area of square miles. The total population in Jefferson is 942 with 49.8% male and 50.2% female. Children under age 5 represent 2.9% of the population, under age 18 equal 13.3% of the population and over age 65 is 31.0% of the population. The median household income is $56,155, per capita income is $36,646. There are a total of 487 housing units with 78.0% owner occupied. Education includes 27.9% of residents that are high school graduates and 40.7% with a bachelor's degree or higher. The average temperature in Jefferson in the summer is 68 degrees, and in the winter 23 degrees.
