Smithfield is located in Somerset county Maine with a geographic area of square miles. The total population in Smithfield is 988 with 49.0% male and 51.0% female. Children under age 5 represent 2.9% of the population, under age 18 equal 16.1% of the population and over age 65 is 27.2% of the population. The median household income is $79,531, per capita income is $39,508. There are a total of 427 housing units with 90.2% owner occupied. Education includes 33.7% of residents that are high school graduates and 35.4% with a bachelor's degree or higher. The average temperature in Smithfield in the summer is 68 degrees, and in the winter 25 degrees.
