Grafton County is a county in the U.S. state of New Hampshire. As of the 2010 census, the population was 89,118. Its county seat is North Haverhill, a village within the town of Haverhill. Until 1972, the county courthouse and other offices were in downtown Woodsville, a larger village within the town of Haverhill.
According to the U.S. Census Bureau, the county has a total area of 1,750 square miles (4,500 km), of which 1,709 square miles (4,430 km) are land and 41 square miles (110 km) (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 census of 2000, 81,743 people, 31,598 households, and 20,254 families resided in the county. The population density was 48 people per square mile (18/km²). There were 43,729 housing units at an average density of 26 per square mile (10/km²). The county’s racial makeup was 95.76% White, 1.73% Asian, 0.53% Black or African American, 0.31% Native American, 0.03% Pacific Islander, 0.39% from other races, and 1.26% from two or more races. 1.12% of the population were Hispanic or Latino of any race. 19.0% were of English, 12.9% Irish, 11.1% French, 7.8% American, 7.5% German, 6.8% French Canadian and 5.5% Italian ancestry. 95.1% spoke English, 1.5% French and 1.3% Spanish as their first language.
There were 31,598 households, of which 29.50% had children under the age of 18 living with them, 52.40% were married couples living together, 8.30% had a female householder with no husband present, and 35.90% were non-families. 27.40% of all households were made up of individuals and 9.50% had someone living alone who was 65 years of age or older. The average household size was 2.38 and the average family size was 2.90.
In the county, the population was spread out with 21.90% under the age of 18, 13.50% from 18 to 24, 27.00% from 25 to 44, 24.20% from 45 to 64, and 13.40% who were 65 years of age or older. The median age was 37 years. For every 100 females, there were 96.70 males. For every 100 females age 18 and over, there were 94.30 males.
The county’s median household income was $41,962, and the median family income was $50,424. Males had a median income of $31,874 versus $25,286 for females. The per capita income for the county was $22,227. About 5.10% of families and 8.60% of the population were below the poverty line, including 8.60% of those under age 18 and 7.50% of those age 65 or over.
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 52.2 inhabitants per square mile (20.2/km). There were 51,120 housing units at an average density of 29.9 per square mile (11.5/km). 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. In terms of ancestry, 23.6% were English, 18.7% were Irish, 10.9% were German, 6.6% were Italian, 5.8% were Scottish, 5.8% were French Canadian, and 5.0% were American.
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 median household income was $53,075 and the median family income was $66,253. Males had a median income of $43,566 versus $33,535 for females. The per capita income for the county was $28,170. About 5.1% of families and 9.8% of the population were below the poverty line, including 9.8% of those under age 18 and 10.6% of those age 65 or over.