census of 2000, there were 18,036 people, 5,872 households, and 4,474 families residing in the town. These residents are often referred to as either "Nortonites" or "Nortonians", though the term "Norts" is often used in colloquial context. The population density was . There were 5,961 housing units at an average density of . The racial makeup of the town was 92.15% White, 1.16% African American, 0.13% Native American, 1.00% Asian, 0.01% Pacific Islander, 4.47% from other races, and 1.08% from two or more races. Hispanic or Latino of any race were 1.14% of the population. There were 5,872 households, out of which 42.3% had children under the age of 18 living with them, 61.8% were married couples living together, 10.8% had a female householder with no husband present, and 23.8% were non-families. 19.3% of all households were made up of individuals, and 6.9% had someone living alone who was 65 years of age or older. The average household size was 2.79 and the average family size was 3.22. In the town, the population was spread out, with 27.0% under the age of 18, 12.6% from 18 to 24, 32.2% from 25 to 44, 20.5% from 45 to 64, and 7.8% who were 65 years of age or older. The median age was 33 years. For every 100 females, there were 90.7 males. For every 100 females age 18 and over, there were 86.1 males. According to a 2016 estimate, the median income for a household in the town was $80,806, and the median income for a family in 2016 was estimated at $104,176. Males had a median income of $51,133 versus $33,149 for females. The per capita income for the town was $23,876. About 2.2% of families and 4.0% of the population were below the poverty line, including 2.9% of those under age 18 and 12.9% of those age 65 or over. Government State and national government The town is a part of three separate state representative districts; precinct one belonging to the Fourth Bristol district (which includes all of Rehoboth, Seekonk and part of Swansea), precinct two belonging to the Fourteenth Bristol district (which includes parts of North Attleborough, Attleboro and Mansfield as well), and precincts three through five belonging to the First Bristol district (whose district includes Mansfield Center and Foxborough). The town is a part of the state senate district of the Bristol and Norfolk district, stretching