Dover is a city in Strafford County, New Hampshire, United States. The population was 29,987 at the 2010 census, the largest in the New Hampshire Seacoast region and the 4th largest city in the state of New Hampshire. The population was estimated at 31,771 in 2018. It is the county seat of Strafford County, and home to Wentworth-Douglass Hospital, the Woodman Institute Museum, and the Children’s Museum of New Hampshire.
As of the census of 2010, there were 29,987 people, 12,827 households, and 7,059 families residing in the city. The city grew by 3,103 residents between 2000 and 2010, the largest numeric growth of any town or city in New Hampshire. The population density in 2010 was 1,123.1 people per square mile (433.3/km²). There were 13,685 housing units at an average density of 512.5 per square mile (197.8/km²). The racial makeup of the city was 90.6% White, 1.7% African American, 0.20% Native American, 4.6% Asian, 0.05% Pacific Islander, 0.6% some other race, and 2.3% from two or more races. Hispanic or Latino of any race were 2.2% of the population.
There were 12,827 households, out of which 27.8% had children under the age of 18 living with them, 40.8% were headed by married couples living together, 10.3% had a female householder with no husband present, and 45.0% were non-families. 31.8% of all households were made up of individuals, and 9.6% were someone living alone who was 65 years of age or older. The average household size was 2.27, and the average family size was 2.89.
In the city, the population was spread out with 20.3% under the age of 18, 11.0% from 18 to 24, 30.6% from 25 to 44, 24.9% from 45 to 64, and 13.1% who were 65 years of age or older. The median age was 36.7 years. For every 100 females, there were 96.0 males. For every 100 females age 18 and over, there were 94.0 males.
For the period 2009–11, the estimated median annual income for a household in the city was $55,040, and the median income for a family was $69,980. Male full-time workers had a median income of $51,891 versus $36,167 for females. The per capita income for the city was $30,590. About 6.8% of families and 8.9% of the population were below the poverty line, including 13.2% of those under age 18 and 5.9% of those age 65 or over.
Dover New Hampshire neighborhoods include: Back Road, Bayview, Belanger Dr, Blackwater, Cocheco Shelter, Court Street, Exit 7, Garrison, Historic District, Liberty Way/Indian Brook, Maplewood / Cranbrook, NE Dover, Samuel-Hanson/Mulligan Aves