Smithfield is located in Cache county Utah with a geographic area of 5.4 square miles. The total population in Smithfield is 11,670 with 49.6% male and 50.4% female. Children under age 5 represent 11.0% of the population, under age 18 equal 37.8% of the population and over age 65 is 8.7% of the population. The median household income is $73,788, per capita income is $24,045. There are a total of 3,225 housing units with 83.4% owner occupied. Education includes 15.6% of residents that are high school graduates and 43.8% with a bachelor's degree or higher. The average temperature in Smithfield in the summer is 69 degrees, and in the winter 30 degrees.
