Granville is a town in Hampden County, Massachusetts, United States. The population was 1,566 at the 2010 census. It is part of the Springfield, Massachusetts Metropolitan Statistical Area. The town is named for John Carteret, 2nd Earl Granville.
The Granville public library began in 1894. In fiscal year 2008, the town of Granville spent 0.68% ($31,979) of its budget on its public library—some $18 per person.
As of the census of 2000, there were 1,521 people, 556 households, and 409 families residing in the town. The population density was 36.0 people per square mile (13.9/km2). There were 595 housing units at an average density of 14.1 per square mile (5.4/km2). The racial makeup of the town was 98.69% White, 0.26% African American, 0.20% Asian, 0.39% from other races, and 0.46% from two or more races. Hispanic or Latino of any race were 0.66% of the population.
There were 556 households, out of which 36.9% had children under the age of 18 living with them, 63.7% were married couples living together, 6.8% had a female householder with no husband present, and 26.3% were non-families. Of all households 20.9% were made up of individuals, and 8.8% had someone living alone who was 65 years of age or older. The average household size was 2.73 and the average family size was 3.19.
In the town, the population was spread out, with 27.6% under the age of 18, 4.9% from 18 to 24, 31.1% from 25 to 44, 25.4% from 45 to 64, and 10.9% who were 65 years of age or older. The median age was 39 years. For every 100 females, there were 106.9 males. For every 100 females age 18 and over, there were 100.9 males.
The median income for a household in the town was $53,148, and the median income for a family was $59,219. Males had a median income of $42,273 versus $30,380 for females. The per capita income for the town was $22,315. About 1.8% of families and 3.4% of the population were below the poverty line, including 1.0% of those under age 18 and 9.8% of those age 65 or over.