The area was first settled in approximately 1800, and was incorporated as Warrentown or Warrenton on February 17, 1820. It was the last town in Maine to be incorporated by the Massachusetts General Court before the Missouri Compromise which led to the birth of the state of Maine, three weeks later.
As of the census of 2010, there were 1,782 people, 741 households, and 482 families living in the town. The population density was. There were 1,109 housing units at an average density of. The racial makeup of the town was 97.0% White, 0.5% African American, 0.3% Native American, 0.4% Asian, 0.3% 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 741 households, of which 26.7% had children under the age of 18 living with them, 48.3% were married couplesliving together, 11.7% had a female householder with no husband present, 5.0% had a male householder with no wife present, and 35.0% were non-families. 26.6% of all households were made up of individuals, and 12.9% had someone living alone who was 65 years of age or older. The average household size was 2.38 and the average family size was 2.80. The median age in the town was 45.2 years. 21% of residents were under the age of 18; 7.7% were between the ages of 18 and 24; 20.8% were from 25 to 44; 32.3% were from 45 to 64; and 18.1% were 65 years of age or older. The gender makeup of the town was 48.3% male and 51.7% female.
2000 census
As of the census of 2000, there were 1,816 people, 707 households, and 492 families living in the town. The population density was 49.0 people per square mile. There were 1,077 housing units at an average density of 29.1 per square mile. The racial makeup of the town was 98.07% White, 0.22% Black or African American, 0.66% Native American, 0.06% Asian, 0.06% Pacific Islander, 0.06% from other races, and 0.88% from two or more races. Hispanic or Latino of any race were 0.50% of the population. There were 707 households, out of which 31.0% had children under the age of 18 living with them, 53.2% were married couples living together, 10.7% had a female householder with no husband present, and 30.4% were non-families. 23.8% of all households were made up of individuals, and 9.8% had someone living alone who was 65 years of age or older. The average household size was 2.48 and the average family size was 2.88. In the town, the population was spread out, with 24.1% under the age of 18, 8.0% from 18 to 24, 27.9% from 25 to 44, 24.9% from 45 to 64, and 15.1% who were 65 years of age or older. The median age was 39 years. For every 100 females, there were 93.6 males. For every 100 females age 18 and over, there were 94.2 males. The median income for a household in the town was $29,573, and the median income for a family was $35,400. Males had a median income of $26,522 versus $21,273 for females. The per capita income for the town was $13,629. About 11.7% of families and 17.0% of the population were below the poverty line, including 20.0% of those under age 18 and 17.7% of those age 65 or over.
