Smithfield is a town in Somerset County, Maine, United States. The population was 1,033 at the 2010 census. The town was incorporated on February 29, 1840 making it the only town in Maine incorporated on Leap Day. The town was named after the Rev. Henry Smith, an early settler.GeographyAccording to the United States Census Bureau, the town has a total area of 24.76sqmi, of which, 19.90sqmi of it is land and 4.86sqmi is water.Demographics2010 censusAs of the census of 2010, there were 1,033 people, 451 households, and 314 families residing in the town. The population density was 51.9PD/sqmi. There were 727 housing units at an average density of 36.5/sqmi. The racial makeup of the town was 97.6% White, 0.1% African American, 0.2% Native American, 0.5% Asian, 0.1% from other races, and 1.5% from two or more races. Hispanic or Latino of any race were 1.0% of the population.There were 451 households of which 23.9% had children under the age of 18 living with them, 57.0% were married couples living together, 6.7% had a female householder with no husband present, 6.0% had a male householder with no wife present, and 30.4% were non-families. 23.1% of all households were made up of individuals and 7.7% had someone living alone who was 65 years of age or older. The average household size was 2.29 and the average family size was 2.62.
