Barrington is a town in Strafford County, New Hampshire, United States. The population was 8,576 at the 2010 census. The town is a woodland, farm and bedroom community.
According to the United States Census Bureau, the town has a total area of 48.5 square miles (126 km), of which 46.6 sq mi (121 km) of it is land and 1.9 sq mi (4.9 km) is water, comprising 3.98% of the town. Barrington is drained by the Isinglass River and Bellamy River. Swains Lake and Mendum’s Pond are in the south. The highest point in town is an unnamed summit near its western border, measuring 610 feet (190 m) above sea level. The highest named summit is Bumfagging Hill, at 601 ft (183 m). Barrington lies fully within the Piscataqua River (Coastal) watershed.
The commercial center of town is the village of East Barrington, centered on the junction of state routes 9 and 125.
As of the census of 2000, there were 7,475 people, 2,756 households, and 2,075 families residing in the town. The population density was 160.5 people per square mile (61.9/km²). There were 3,147 housing units at an average density of 67.6 per square mile (26.1/km²). The racial makeup of the town was 98.11% White, 0.25% African American, 0.13% Native American, 0.41% Asian, 0.05% Pacific Islander, 0.23% from other races, and 0.80% from two or more races. Hispanic or Latino of any race were 0.92% of the population.
There were 2,756 households out of which 38.8% had children under the age of 18 living with them, 64.6% were married couples living together, 6.5% had a female householder with no husband present, and 24.7% were non-families. 16.9% of all households were made up of individuals and 4.3% had someone living alone who was 65 years of age or older. The average household size was 2.71 and the average family size was 3.07.
In the town, the population was spread out with 27.5% under the age of 18, 5.7% from 18 to 24, 35.1% from 25 to 44, 24.7% from 45 to 64, and 7.0% who were 65 years of age or older. The median age was 37 years. For every 100 females, there were 104.1 males. For every 100 females age 18 and over, there were 101.7 males.
The median income for a household in the town was $50,630, and the median income for a family was $56,136. Males had a median income of $39,098 versus $27,956 for females. The per capita income for the town was $21,012. About 3.6% of families and 5.5% of the population were below the poverty line, including 7.0% of those under age 18 and none of those age 65 or over.
Barrington New Hampshire neighborhoods include: Barrington, Boulder Drive, Canaan, Long Shore, Oak Hill Road