Sheffield is located in Berkshire county Massachusetts with a geographic area of square miles. The total population in Sheffield is 3,146 with 50.7% male and 49.3% female. Children under age 5 represent 2.1% of the population, under age 18 equal 12.4% of the population and over age 65 is 32.1% of the population. The median household income is $68,676, per capita income is $44,775. There are a total of 1,416 housing units with 85.9% owner occupied. Education includes 32.8% of residents that are high school graduates and 32.1% with a bachelor's degree or higher. The average temperature in Sheffield in the summer is 70 degrees, and in the winter 30 degrees.