Hebron is a town in Grafton County, New Hampshire, United States. The population was 459 at the 2000 census.
Hebron was formed in 1791 from a portion of the extinct township of Cockermouth and from a portion of what was then called West Plymouth. Most of the early settlers of Hebron came from New England towns, with no known first generation emigrants from Europe. Primarily a farming town at first, other industries grew up with the building of the Mayhew Turnpike in 1803, which connected the northern towns and lumber harvesting with the southern cities and mills. By the 1920s, tourism developed into a major town occupation, including summer lodges and winter skiing.
Hebron sits at the north end of Newfound Lake, the fourth-largest lake in New Hampshire. The Cockermouth River, the primary feeder to the lake, enters the town from Groton to the west and passes the town center before entering the lake. Hebron lies fully within the Merrimack River watershed. The highest point in Hebron is a knob with an elevation of 2,240 feet (680 m) above sea level just south of the summit of Tenney Mountain, near the town's northernmost point.
According to the United States Census Bureau, the town has a total area of 18.9 square miles (49 km2), of which 16.8 sq mi (44 km2) is land and 2.1 sq mi (5.4 km2) is water, comprising 10.90% of the town.
As of the census of 2000, there were 459 people, 206 households, and 146 families residing in the town. The population density was 27.3 people per square mile (10.5/km²). There were 517 housing units at an average density of 30.7/sq mi (11.9/km²). The racial makeup of the town was 95.86% White, 0.44% African American, 0.22% Native American, 0.22% Asian, 1.74% from other races, and 1.53% from two or more races.
There were 206 households out of which 20.4% had children under the age of 18 living with them, 63.1% were married couples living together, 5.8% had a female householder with no husband present, and 29.1% were non-families. 23.3% of all households were made up of individuals and 10.2% had someone living alone who was 65 years of age or older. The average household size was 2.23 and the average family size was 2.60.
In the town the population was spread out with 16.1% under the age of 18, 6.3% from 18 to 24, 18.7% from 25 to 44, 30.7% from 45 to 64, and 28.1% who were 65 years of age or older. The median age was 50 years. For every 100 females there were 97.0 males. For every 100 females age 18 and over, there were 91.5 males.
The median income for a household in the town was $47,639, and the median income for a family was $54,688. Males had a median income of $37,857 versus $30,625 for females. The per capita income for the town was $30,196. About 2.6% of families and 2.8% of the population were below the poverty line, including 6.8% of those under age 18 and 2.3% of those age 65 or over.