Гrafton округі, Нью-Гэмпшир штаты

County in New Hampshire, United States

Grafton County is a county in the U. S. state of New Hampshire. As of the 2020 census, the population was 91,118. Its county seat is the town of Haverhill. In 1972, the county courthouse and other offices were moved from Woodsville, a larger village within the town of Haverhill, to North Haverhill. Grafton County is part of the Claremont Lebanon, NH–VT Micropolitan Statistical Area. The county is the home of Dartmouth College and Plymouth State University. Progressive Farmer rated Grafton County fourth in its list of the "Best Places to Live in Rural America" in 2006, citing low unemployment (despite slow economic growth), a favorable cost of living, and the presence of White Mountain National Forest, the state's only national forest.

Grafton was one of the five counties originally identified for New Hampshire in 1769. It was named for Augustus FitzRoy, 3rd Duke of Grafton, who had been a supporter of American causes in Parliament, and who was serving as British Prime Minister at the time. The county was organized at Haverhill in 1771, and originally included the entire northern frontier of New Hampshire, including several towns now in Vermont. In 1803, the northern area was removed for the formation of Coos County. The three counties to the south were Strafford, Hillsborough and Cheshire, and the eastern edge bordered the "District of Maine". In 1797, the county had 50 townships, 17 locations, and a population of 23,093.

According to the United States Census Bureau, the county has a total area of 1750 square miles (4,532 km2), of which 1709 square miles (4,426 km2) are land and 41 square miles (106 km2) (2.3%) are water. It is the second largest county in New Hampshire by area. Grafton County is heavily rural. About half of its area is in the White Mountain National Forest. Squam Lake, featured in the film On Golden Pond, and the Old Man of the Mountain landmark are here, as are Dartmouth College and the Hubbard Brook Experimental Forest. Many of the 4,000 foot mountains of New Hampshire are within the county. The Appalachian Trail passes through parts of at least ten towns in the county.

As of the 2010 United States census, there were 89,118 people, 35,986 households, and 22,074 families in the county. The population density was There were 51,120 housing units at an average density of The county's racial makeup was 93.6% white, 3.0% Asian, 0.9% black or African American, 0.4% American Indian, 0.4% from other races, and 1.8% from two or more races. Those of Hispanic or Latino origin made up 1.8% of the population. Of the 35,986 households, 25.8% had children under the age of 18 living with them, 49.0% were married couples living together, 8.4% had a female householder with no husband present, 38.7% were non families, and 29.4% of all households were made up of individuals. The average household size was 2.28 and the average family size was 2.80. The median age was 41.2 years.

The general court delegation of Grafton County is made up of all of the members of the New Hampshire House of Representatives from the county. There are 26 members from 18 different districts. After the 2022 elections, the party distribution of representatives was as follows. Affiliation Members Voting share Democratic Party 18 69.2% Republican Party 8 30.8% Total 27 100%