Marlow is located in Cheshire county New hampshire with a geographic area of square miles. The total population in Marlow is 788 with 48.2% male and 51.8% female. Children under age 5 represent 7.1% of the population, under age 18 equal 21.7% of the population and over age 65 is 26.6% of the population. The median household income is $87,000, per capita income is $35,550. There are a total of 328 housing units with 86.9% owner occupied. Education includes 29.9% of residents that are high school graduates and 29.0% with a bachelor's degree or higher. The average temperature in Marlow in the summer is 68 degrees, and in the winter 23 degrees.