Deering is a town in Hillsborough County, New Hampshire, United States. The population was 1,912 at the 2010 census.
Deering is in northwestern Hillsborough County, bordered by Hillsborough and Henniker to the north, Weare to the east, Francestown to the south, Bennington to the southwest, and Antrim to the west. According to the United States Census Bureau, the town has a total area of 31.4 square miles (81.4 km), of which 30.8 square miles (79.8 km) is land and 0.66 square miles (1.7 km) is water, comprising 2.04% of the town. The highest point in Deering is Clark Summit, at 1,570 feet (480 m) above sea level. Deering lies fully within the Merrimack River watershed. The eastern two-thirds of the town are drained by tributaries of the Piscataquog River, which flows east to join the Merrimack in Manchester, while the western third of the town drains to the Contoocook River, which forms the western boundary of the town and flows north to the Merrimack in Penacook.
The town is crossed by State Route 149, connecting Hillsborough to the north with Weare to the east.
As of the census of 2010, there were 1,912 people, 740 households, and 534 families residing in the town. The population density was 62.1 people per square mile (24.0/km²). There were 932 housing units at an average density of 30.3 per square mile (11.7/km²). The racial makeup of the town was 97.0% White, 0.3% African American, 0.2% Native American or Alaska Native, 0.1% some other race, and 1.5% from two or more races. Hispanic or Latino of any race were 1.3% of the population.
There were 740 households, out of which 28.4% had children under the age of 18 living with them, 58.9% were headed by married couples living together, 7.3% had a female householder with no husband present, and 27.8% were non-families. 20.1% of all households were made up of individuals, and 6.2% were someone living alone who was 65 years of age or older. The average household size was 2.49, and the average family size was 2.85.
In the town, the population was spread out with 19.4% under the age of 18, 7.2% from 18 to 24, 26.7% from 25 to 44, 33.2% from 45 to 64, and 13.5% who were 65 years of age or older. The median age was 42.9 years. For every 100 females, there were 107.4 males. For every 100 females age 18 and over, there were 105.1 males.
For the period 2009-13, the estimated median annual income for a household in the town was $68,281, and the median income for a family was $76,389. Male full-time workers had a median income of $60,114 versus $40,272 for females. The per capita income for the town was $33,042. About 5.4% of families and 9.6% of the population were below the poverty line.