Arrowsic is a town in Sagadahoc County, Maine, United States. The population is 501 as of 2014. It is part of the Portland–South Portland–Biddeford, Maine metropolitan statistical area. During the French and Indian Wars, Arrowsic was site of a succession of important and embattled colonial settlements. It is a favorite with artists and birdwatchers.
According to the United States Census Bureau, the town has a total area of 10.79 square miles (27.95 km), of which, 7.75 square miles (20.07 km) of it is land and 3.04 square miles (7.87 km) is water. Arrowsic is on an island of the same name situated between the Kennebec River, Sasanoa River and Back River.
It is crossed by Maine State Route 127. Separated by water, Arrowsic is near the towns of Woolwich to the north, Westport to the east, Georgetown to the southeast, Phippsburg to the southwest, and Bath to the northwest.
As of the census of 2010, there were 427 people, 204 households, and 127 families residing in the town. The population density was 55.1 inhabitants per square mile (21.3/km). There were 251 housing units at an average density of 32.4 per square mile (12.5/km). The racial makeup of the town was 98.6% White, 0.7% Native American, 0.5% Asian, and 0.2% from two or more races.
There were 204 households of which 13.7% had children under the age of 18 living with them, 57.4% were married couples living together, 3.4% had a female householder with no husband present, 1.5% had a male householder with no wife present, and 37.7% were non-families. 29.9% of all households were made up of individuals and 13.8% had someone living alone who was 65 years of age or older. The average household size was 2.09 and the average family size was 2.61.
The median age in the town was 55 years. 11.7% of residents were under the age of 18; 3.9% were between the ages of 18 and 24; 15.1% were from 25 to 44; 45.5% were from 45 to 64; and 23.7% were 65 years of age or older. The gender makeup of the town was 49.2% male and 50.8% female.
As of the census of 2000, there were 477 people, 196 households, and 137 families residing in the town. The population density was 61.3 people per square mile (23.7/km²). There were 238 housing units at an average density of 30.6 per square mile (11.8/km²). The racial makeup of the town was 98.53% White, and 1.47% from two or more races.
There were 196 households out of which 31.6% had children under the age of 18 living with them, 63.8% were married couples living together, 3.1% had a female householder with no husband present, and 29.6% were non-families. 21.9% of all households were made up of individuals and 7.1% had someone living alone who was 65 years of age or older. The average household size was 2.43 and the average family size was 2.85.
In the town, the population was spread out with 23.1% under the age of 18, 3.8% from 18 to 24, 25.8% from 25 to 44, 35.8% from 45 to 64, and 11.5% who were 65 years of age or older. The median age was 44 years. For every 100 females, there were 95.5 males. For every 100 females age 18 and over, there were 92.1 males.
The median income for a household in the town was $53,250, and the median income for a family was $61,875. Males had a median income of $36,023 versus $31,458 for females. The per capita income for the town was $29,597. None of the families and 1.2% of the population were living below the poverty line, including no under eighteens and none of those over 64.