Wentworth is a town in Grafton County, New Hampshire, United States. The population was 911 at the 2010 census. The town is home to Plummer’s Ledge Natural Area, and part of the White Mountain National Forest is in the northeast. The town has a picturesque common, presided over by a Federal style church and bordered by antique homes.
According to the United States Census Bureau, the town has a total area of 42.0 square miles (108.8 km), of which 41.4 square miles (107.2 km) is land and 0.5 square miles (1.3 km), or 1.21%, is water. The town is drained by the Baker River and the South Branch Baker River. The highest point in Wentworth is Carr Mountain, at 3,453 feet (1,052 m) above sea level.
The town is crossed north to south by New Hampshire Route 25 and New Hampshire Route 118. New Hampshire Route 25A starts at Routes 25 and 118 at the town center and proceeds west into Orford.
As of the census of 2000, there were 798 people, 310 households, and 220 families residing in the town. The population density was 19.2 people per square mile (7.4/km²). There were 437 housing units at an average density of 10.5 per square mile (4.1/km²). The racial makeup of the town was 97.62% White, 0.38% African American, 0.25% Asian, 0.13% from other races, and 1.63% from two or more races. Hispanic or Latino of any race were 0.38% of the population.
There were 310 households out of which 31.9% had children under the age of 18 living with them, 60.0% were married couples living together, 7.4% had a female householder with no husband present, and 29.0% were non-families. 21.3% of all households were made up of individuals and 8.4% had someone living alone who was 65 years of age or older. The average household size was 2.57 and the average family size was 3.04.
In the town, the population was spread out with 25.8% under the age of 18, 5.8% from 18 to 24, 29.6% from 25 to 44, 24.7% from 45 to 64, and 14.2% who were 65 years of age or older. The median age was 40 years. For every 100 females, there were 100.4 males. For every 100 females age 18 and over, there were 101.4 males.
The median income for a household in the town was $44,219, and the median income for a family was $47,917. Males had a median income of $31,250 versus $24,500 for females. The per capita income for the town was $18,258. About 6.1% of families and 7.9% of the population were below the poverty line, including 9.7% of those under age 18 and 2.6% of those age 65 or over.