Smithfield is located in Providence county Rhode island with a geographic area of square miles. The total population in Smithfield is 21,735 with 47.6% male and 52.4% female. Children under age 5 represent 2.8% of the population, under age 18 equal 15.4% of the population and over age 65 is 21.8% of the population. The median household income is $86,991, per capita income is $37,650. There are a total of 7,841 housing units with 79.2% owner occupied. Education includes 24.8% of residents that are high school graduates and 40.6% with a bachelor's degree or higher. The average temperature in Smithfield in the summer is 69 degrees, and in the winter 33 degrees.
