Chesterfield is located in Hampshire county Massachusetts with a geographic area of square miles. The total population in Chesterfield is 1,189 with 48.5% male and 51.5% female. Children under age 5 represent 2.0% of the population, under age 18 equal 13.7% of the population and over age 65 is 23.0% of the population. The median household income is $75,880, per capita income is $38,630. There are a total of 513 housing units with 87.5% owner occupied. Education includes 35.3% of residents that are high school graduates and 37.8% with a bachelor's degree or higher. The average temperature in Chesterfield in the summer is 70 degrees, and in the winter 30 degrees.