Gill is located in Franklin county Massachusetts with a geographic area of square miles. The total population in Gill is 1,732 with 56.8% male and 43.2% female. Children under age 5 represent 3.3% of the population, under age 18 equal 15.4% of the population and over age 65 is 17.3% of the population. The median household income is $68,173, per capita income is $40,917. There are a total of 591 housing units with 80.7% owner occupied. Education includes 19.6% of residents that are high school graduates and 42.5% with a bachelor's degree or higher. The average temperature in Gill in the summer is 70 degrees, and in the winter 30 degrees.