Londonderry is a town in western Rockingham County, New Hampshire, United States. The town sits between Manchester and Derry, the largest and fourth-largest communities in the state. The population was 24,129 at the 2010 census and an estimated 26,126 in 2017. Londonderry is known for its apple orchards and is home to the headquarters of Stonyfield Farm and part of Manchester-Boston Regional Airport.
Londonderry is the westernmost municipality in Rockingham County. It is bordered by the towns of Auburn to the northeast, Derry to the east, and Windham to the southeast, all in Rockingham County, and by Hudson to the south, Litchfield to the west, and Manchester to the north, in Hillsborough County. According to the United States Census Bureau, the town has a total area of 42.1 square miles (109.1 km), of which 42.0 square miles (108.7 km) is land and 0.1 square miles (0.3 km) is water, comprising 0.31% of the town.
The town of Londonderry is drained on the east and south by Beaver Brook and on the west by Little Cohas Brook, Watts Brook, Colby Brook and Nesenkeag Brook, all of which flow to the Merrimack River. The town’s highest point is 535 feet (163 m) above sea level, on Number Eight Hill (named after the old school house that used to be on it) north of the center of town.
The town is crossed by Interstate 93, New Hampshire Route 102, New Hampshire Route 128, and New Hampshire Route 28. Half of Manchester–Boston Regional Airport, including the main terminal, is in the northwest corner of the town.
Though Londonderry has grown to become one of the larger towns, by population, in the state, it lacks any concentrated downtown area, central business district, or town center. Historically, no village had developed in Londonderry, as it was largely a rural farming area. Population growth in the town only began in the 1970s, when the construction of I-93 turned Londonderry into a bedroom community and exurb for the Greater Boston area. The major retail district lies in the town’s southeastern corner near where NH 102 interchanges with I-93, with smaller commercial districts lying at the intersection of NH 128 and NH 102, and near where NH 28 and NH 128 merge. The Town Hall and schools are built near the geographic center of the town along an otherwise rural stretch of NH 128.
As of the census of 2010, there were 24,129 people, 8,438 households, and 6,678 families residing in the town. The population density was 574.5 people per square mile (221.9/km²). There were 8,771 housing units at an average density of 208.8 per square mile (80.7/km²). The racial makeup of the town was 95.8% White, 0.7% Black or African American, 0.1% Native American or Alaska Native, 1.7% Asian, 0.03% Pacific Islander, 0.4% some other race, and 1.2% from two or more races. Hispanic or Latino of any race were 2.1% of the population.
There were 8,438 households, out of which 41.7% had children under the age of 18 living with them, 65.9% were headed by married couples living together, 9.2% had a female householder with no husband present, and 20.9% were non-families. 15.8% of all households were made up of individuals, and 5.1% were someone living alone who was 65 years of age or older. The average household size was 2.86, and the average family size was 3.21.
In the town, the population was spread out with 26.9% under the age of 18, 7.1% from 18 to 24, 23.6% from 25 to 44, 33.6% from 45 to 64, and 8.7% who were 65 years of age or older. The median age was 39.6 years. For every 100 females, there were 98.3 males. For every 100 females age 18 and over, there were 94.7 males.
For the period 2009-13, the estimated median annual income for a household in the town was $90,263, and the median income for a family was $107,100. Male full-time workers had a median income of $71,280 versus $50,081 for females. The per capita income for the town was $38,553. About 1.6% of families and 2.8% of the population were below the poverty line, including 2.6% of those under age 18 and 4.7% of those age 65 or over.
Londonderry New Hampshire neighborhoods include: Bockman, Bockmon Park, Brook Estates, Hardy Rd, Holton Circle, Kendalwood Pond, Mountain Estates, North High Range Rd, Nottingham Estates, Old Appleby, Perkins R, Seasons Lane, Stonehenge, Winding Pond/Pillsbury Rd