Westfield is a town in the western part Chautauqua County, New York, United States. The population was 4,896 at the 2010 census. Westfield is also the name of a village within the town, containing 65% of the town’s population.
According to the United States Census Bureau, the town of Westfield has a total area of 47.3 square miles (122.4 km), of which 47.2 square miles (122.2 km) is land and 0.08 square miles (0.2 km), or 0.14%, is water.
As of the census of 2000, there were 5,232 people, 2,075 households, and 1,419 families residing in the town. The population density was 110.8 people per square mile (42.8/km²). There were 2,493 housing units at an average density of 52.8 per square mile (20.4/km²). The racial makeup of the town was 96.98% White, 0.27% Black or African American, 0.25% Native American, 0.54% Asian, 1.30% from other races, and 0.67% from two or more races. Hispanic or Latino of any race were 2.64% of the population.
There were 2,075 households out of which 31.6% had children under the age of 18 living with them, 55.3% were married couples living together, 9.7% had a female householder with no husband present, and 31.6% were non-families. 27.2% of all households were made up of individuals and 11.8% had someone living alone who was 65 years of age or older. The average household size was 2.46 and the average family size was 2.98.
In the town, the population was spread out with 25.4% under the age of 18, 6.8% from 18 to 24, 25.7% from 25 to 44, 24.2% from 45 to 64, and 18.0% who were 65 years of age or older. The median age was 40 years. For every 100 females, there were 93.2 males. For every 100 females age 18 and over, there were 91.0 males.
The median income for a household in the town was $32,534, and the median income for a family was $43,156. Males had a median income of $30,203 versus $23,250 for females. The per capita income for the town was $15,738. About 8.8% of families and 13.8% of the population were below the poverty line, including 17.0% of those under age 18 and 14.8% of those age 65 or over.