Barrington is a town located in Strafford County, New Hampshire. As of the 2000 census, the town had a total population of 7,475.
According to the United States Census Bureau, the town has a total area of 125.7 km2 (48.5 mi2). 120.7 km2 (46.6 mi2) of it is land and 5.0 km2 (1.9 mi2) of it is water. The total area is 3.98% water. Barrington is drained by the Isinglass River. Swain's Lake and Mendum's Pond are in the south. Green Hill, elevation 386 feet, is the highest point in town.
As of the census2 of 2000, there are 7,475 people, 2,756 households, and 2,075 families residing in the town. The population density is 61.9/km2 (160.5/mi2). There are 3,147 housing units at an average density of 26.1/km2 (67.6/mi2). The racial makeup of the town is 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. 0.92% of the population are Hispanic or Latino of any race.
There are 2,756 households out of which 38.8% have children under the age of 18 living with them, 64.6% are married couples living together, 6.5% have a female householder with no husband present, and 24.7% are non-families. 16.9% of all households are made up of individuals and 4.3% have someone living alone who is 65 years of age or older. The average household size is 2.71 and the average family size is 3.07.
In the town the population is 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 are 65 years of age or older. The median age is 37 years. For every 100 females there are 104.1 males. For every 100 females age 18 and over, there are 101.7 males.
The median income for a household in the town is $50,630, and the median income for a family is $56,136. Males have a median income of $39,098 versus $27,956 for females. The per capita income for the town is $21,012. 5.5% of the population and 3.6% of families are below the poverty line. Out of the total population, 7.0% of those under the age of 18 and 0.0% of those 65 and older are living below the poverty line.
Barrington was incorporated in 1722 and named for Samuel Shute of Barrington Hall, colonial governor of Massachusetts and New Hampshire. His brother was Viscount Barrington.
The town was made up of two grants, the first containing all of Strafford and Barrington except for a parcel two miles wide called "New Portsmouth," or the "Two Mile Streak." This second grant had been set aside to provide fuel and home sites for imported workers at the Lamprey River Iron Works, chartered in 1719 by the General Court of Massachusetts to encourage industrial development in the province.
Slow at first to be settled because of rocky soil, Barrington by 1810 had 3,564 residents, the state's third largest town, its primary industry the smelting of iron ore. The Isinglass River, together with its tributaries, once provided water power for grist, fulling and sawmills. In 1820, Strafford was set off from Barrington, reducing its land area by about half, because of lengthy travel required to attend town meetings.