Sedgwick is a town in Hancock County, Maine, United States. The population was 1,196 at the 2010 census. The town includes the village of Sargentville.
According to the United States Census Bureau, the town has a total area of 31.06 square miles (80.45 km), of which 26.99 square miles (69.90 km) is land and 4.07 square miles (10.54 km) is water. Drained by the Benjamin River, which separates it from Brooklin, Sedgwick overlooks Penobscot Bay. The Deer Isle Bridge spans the Eggemoggin Reach, connecting Sedgwick to the towns of Deer Isle and Stonington.
The town is crossed by state routes 15, 172, 175 and 176.
As of the census of 2010, there were 1,196 people, 529 households, and 344 families residing in the town. The population density was 44.3 inhabitants per square mile (17.1/km). There were 800 housing units at an average density of 29.6 per square mile (11.4/km). The racial makeup of the town was 98.4% White, 0.3% African American, 0.2% Native American, 0.5% Asian, 0.3% from other races, and 0.3% from two or more races. Hispanic or Latino of any race were 1.8% of the population.
There were 529 households of which 26.3% had children under the age of 18 living with them, 50.7% were married couples living together, 9.3% had a female householder with no husband present, 5.1% had a male householder with no wife present, and 35.0% were non-families. 29.3% of all households were made up of individuals and 11.7% had someone living alone who was 65 years of age or older. The average household size was 2.26 and the average family size was 2.73.
The median age in the town was 45.9 years. 20.2% of residents were under the age of 18; 6.7% were between the ages of 18 and 24; 21.4% were from 25 to 44; 32.5% were from 45 to 64; and 19.1% were 65 years of age or older. The gender makeup of the town was 49.6% male and 50.4% female.
As of the census of 2000, there were 1,102 people, 470 households, and 307 families residing in the town. The population density was 40.8 people per square mile (15.7/km²). There were 671 housing units at an average density of 24.8 per square mile (9.6/km²). The racial makeup of the town was 96.64% White, 0.18% African American, 0.73% Native American, 0.36% Asian, 0.18% from other races, and 1.91% from two or more races. Hispanic or Latino of any race were 1.09% of the population.
There were 470 households out of which 29.4% had children under the age of 18 living with them, 55.3% were married couples living together, 7.0% had a female householder with no husband present, and 34.5% were non-families. 29.4% of all households were made up of individuals and 13.0% had someone living alone who was 65 years of age or older. The average household size was 2.34 and the average family size was 2.93.
In the town, the population was spread out with 25.0% under the age of 18, 6.4% from 18 to 24, 25.2% from 25 to 44, 27.6% from 45 to 64, and 15.9% who were 65 years of age or older. The median age was 40 years. For every 100 females, there were 100.7 males. For every 100 females age 18 and over, there were 96.9 males.
The median income for a household in the town was $35,000, and the median income for a family was $40,547. Males had a median income of $26,607 versus $21,944 for females. The per capita income for the town was $19,772. About 6.9% of families were below the poverty line.