Randolph is located in Coos county New hampshire with a geographic area of square miles. The total population in Randolph is 370 with 50.0% male and 50.0% female. Children under age 5 represent 5.1% of the population, under age 18 equal 10.8% of the population and over age 65 is 35.4% of the population. The median household income is $78,542, per capita income is $47,989. There are a total of 189 housing units with 75.1% owner occupied. Education includes 11.6% of residents that are high school graduates and 60.3% with a bachelor's degree or higher. The average temperature in Randolph in the summer is 68 degrees, and in the winter 23 degrees.