New Hampshire Route 150 (abbreviated NH 150) is a 5.79 miles (9.3 km) long north–south state highway

State highway

State highway, state road or state route can refer to one of three related concepts, two of them related to a state or provincial government in a country that is divided into states or provinces :#A...

 in Rockingham County

Rockingham County, New Hampshire

-Demographics:As of the census of 2000, there were 277,359 people, 104,529 households, and 74,320 families residing in the county. The population density was 399 people per square mile . There were 113,023 housing units at an average density of 163 per square mile...

 in southeastern New Hampshire

New Hampshire

New Hampshire is a state in the New England region of the northeastern United States of America. The state was named after the southern English county of Hampshire. It is bordered by Massachusetts to the south, Vermont to the west, Maine and the Atlantic Ocean to the east, and the Canadian...

. The road runs from Kensington

Kensington, New Hampshire

Kensington is a town in Rockingham County, New Hampshire, United States. The population was 2,124 at the 2010 census.-History:Once a parish of Hampton, Kensington was incorporated in 1737 by Massachusetts Governor Jonathan Belcher, when New Hampshire was still part of that colonial province...

 south to the Massachusetts

Massachusetts

The Commonwealth of Massachusetts is a state in the New England region of the northeastern United States of America. It is bordered by Rhode Island and Connecticut to the south, New York to the west, and Vermont and New Hampshire to the north; at its east lies the Atlantic Ocean. As of the 2010...

 border.

The southern terminus of NH 150 is at the Massachusetts state line in South Hampton

South Hampton, New Hampshire

South Hampton is a town in Rockingham County, New Hampshire, United States. The population was 814 at the 2010 census. South Hampton is home to Cowden State Forest and Powwow River State Forest.- History :...

, where the road continues south as Massachusetts Route 150

Massachusetts Route 150

Route 150 is a short south–north highway entirely in Amesbury, Massachusetts.-Route description:Route 150 begins at an intersection with Beacon Street, an unusual instance that a numbered route does not have its terminus with another numbered route...

 in the town of Amesbury

Amesbury, Massachusetts

Amesbury is a city in Essex County, Massachusetts, United States. Though it officially became a city in 1996, its formal name remains "The Town of Amesbury." In 1890, 9798 people lived in Amesbury; in 1900, 9473; in 1910, 9894; in 1920, 10,036; and in 1940, 10,862. The population was 16,283 at...

. The northern terminus of NH 150 is at New Hampshire Route 108

New Hampshire Route 108

New Hampshire Route 108 is a long north–south state highway in Rockingham and Strafford counties in southeastern New Hampshire. The northern terminus of the route is in the city of Rochester at NH Route 125 and NH Route 202A...

in Kensington. For most of its length, NH 150 is named Amesbury Road.