The central village in town, where over 30% of the town's population resides, is defined as the Hooksett census-designated place and is located at a bridge crossing of the Merrimack River. The town also contains the census-designated place of South Hooksett.
As of the census of 2000, there were 11,721 people, 4,147 households, and 3,031 families residing in the town. The population density was 323.6 people per square mile (124.9/km²). There were 4,307 housing units at an average density of 45.9 units/km² (118.9 units/sq mi). The racial makeup of the town was 96.45% White, 0.68% African American, 0.24% Native American, 1.66% Asian, 0.03% Pacific Islander, 0.20% from other races, and 0.74% from two or more races. 1.45% of the population were Hispanic or Latino of any race.
There were 4,147 households out of which 36.2% had children under the age of 18 living with them, 60.6% were married couples living together, 8.7% have a woman whose husband does not live with her, and 26.9% were non-families. 19.6% of all households were made up of individuals and 6.7% had someone living alone who was 65 years of age or older. The average household size was 2.63 and the average family size was 3.04.
In the town the population was spread out with 24.3% under the age of 18, 12.2% from 18 to 24, 32.1% from 25 to 44, 22.3% from 45 to 64, and 9.1% who were 65 years of age or older. The median age was 35 years. For every 100 females there were 99.9 males. For every 100 females age 18 and over, there were 97.7 males.
The median income for a household in the town was $61,491, and the median income for a family was $68,673. Males had a median income of $43,524 versus $31,341 for females. The per capita income for the town was $24,629. 4.0% of the population and 3.2% of families were below the poverty line. Out of the total people living in poverty, 6.0% are under the age of 18 and 7.7% are 65 or older.
As of the census of 2000, there were 3,609 people, 1,484 households, and 1,020 families residing in the central village, or CDP. The population density was 762.7 people per square mile (294.6/km²). There were 1,547 housing units at an average density of 126.3 persons/km² (326.9 persons/sq mi). The racial makeup of the town was 96.34% White, 0.75% African American, 0.28% Native American, 1.58% Asian, 0.28% from other races, and 0.78% from two or more races. 1.50% of the population were Hispanic or Latino of any race.
There were 1,484 households out of which 33.1% had children under the age of 18 living with them, 52.0% were married couples living together, 12.5% have a woman whose husband does not live with her, and 31.2% were non-families. 24.1% of all households were made up of individuals and 5.9% 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 2.88.
In the CDP the population was spread out with 25.1% under the age of 18, 4.8% from 18 to 24, 34.9% from 25 to 44, 25.5% from 45 to 64, and 9.7% who were 65 years of age or older. The median age was 38 years. For every 100 females there were 91.5 males. For every 100 females age 18 and over, there were 88.0 males.
The median income for a household in the village was $51,422, and the median income for a family was $56,786. Males had a median income of $40,106 versus $35,139 for females. The per capita income for is $23,933. 7.3% of the population and 7.1% of families were below the poverty line. Out of the total people living in poverty, 14.7% are under the age of 18 and 5.9% are 65 or older.