Benton is a town in Grafton County, New Hampshire, United States. The population was 364 at the 2010 census. Located in the White Mountains, Benton is largely surrounded by the White Mountain National Forest. The town is crossed by the Appalachian Trail.
According to the United States Census Bureau, the town has a total area of 48.4 square miles (125 km), of which 48.2 sq mi (125 km) is land and 0.2 sq mi (0.52 km) is water, comprising 0.48% of the town. It is drained by the Oliverian Brook and Wild Ammonoosuc River. Benton lies almost fully within the Connecticut River watershed, although a small part of the southeast corner is in the Merrimack River watershed. The highest point in town is the summit of Mount Moosilauke, at 4,802 feet (1,464 m) above sea level.
Benton is crossed by New Hampshire Route 116.
As of the census of 2000, there were 314 people, 91 households, and 59 families residing in the town. The population density was 6.5 people per square mile (2.5/km²). There were 155 housing units at an average density of 3.2 per square mile (1.2/km²). The racial makeup of the town was 97.45% White, 0.32% Asian, and 2.23% from two or more races.
There were 91 households out of which 30.8% had children under the age of 18 living with them, 56.0% were married couples living together, 6.6% had a female householder with no husband present, and 34.1% were non-families. 28.6% of all households were made up of individuals and 11.0% had someone living alone who was 65 years of age or older. The average household size was 2.43 and the average family size was 2.95.
In the town, the population was spread out with 18.8% under the age of 18, 4.5% from 18 to 24, 22.3% from 25 to 44, 22.0% from 45 to 64, and 32.5% who were 65 years of age or older. The median age was 48 years. For every 100 females, there were 78.4 males. For every 100 females age 18 and over, there were 75.9 males.
The median income for a household in the town was $34,167, and the median income for a family was $40,417. Males had a median income of $28,125 versus $22,188 for females. The per capita income for the town was $13,220. About 3.8% of families and 8.8% of the population were below the poverty line, including none of those under age 18 and 13.0% of those age 65 or over.