Northumberland, New Hampshire

Northumberland, New Hampshire
Town
Covered bridge over the Upper Ammonoosuc River
Location in Coos County, New Hampshire
Coordinates: 44°33′48″N 71°33′31″W / 44.56333°N 71.55861°W / 44.56333; -71.55861Coordinates: 44°33′48″N 71°33′31″W / 44.56333°N 71.55861°W / 44.56333; -71.55861
Country	United States
State	New Hampshire
County	Coos
Incorporated	1779
Government
• Board of Selectmen	James Weagle, Chair Michael Phillips James Tierney, Jr.
Area
• Total	36.5 sq mi (94.5 km2)
• Land	35.7 sq mi (92.5 km2)
• Water	0.8 sq mi (2.0 km2)  2.13%
Elevation	860 ft (262 m)
Population (2010)
• Total	2,288
• Density	63/sq mi (24/km2)
Time zone	Eastern (UTC-5)
• Summer (DST)	Eastern (UTC-4)
ZIP codes	03582, 03583
Area code(s)	603
FIPS code	33-56100
GNIS feature ID	0873688
Website	northumberlandnh.weebly.com

Northumberland is a town located in southwestern Coos County, New Hampshire, U.S., north of Lancaster. It is part of the Berlin, NH–VT micropolitan statistical area. As of the 2010 census, the town population was 2,288, a large portion in the village of Groveton.

North of the mountain ridge known as Cape Horn, near the Connecticut River, are the remains of Fort Wentworth, built by the New Hampshire Militia in 1755 during the French and Indian War. The town was granted as Stonington in 1761 to John Hogg and others by Governor Benning Wentworth, and first settled in 1767 by Thomas Burnside and Daniel Spaulding. It was regranted by Governor John Wentworth in 1771 as Northumberland, the name derived from Northumberland in England. The town was incorporated November 16, 1779.

Groveton is the northern terminus of a railroad track owned by the New Hampshire & Vermont Railroad, where it intersects the St. Lawrence & Atlantic Railroad. This was formerly the junction of the Grand Trunk Railway and the Boston, Concord & Montreal Railroad—a major point of access for the northern White Mountains.