Windsor is a town in Broome County, New York, United States. The population was 6,247 at the 2010 census.
According to the United States Census Bureau, the town of Windsor has a total area of 93.0 square miles (240.9 km), of which 91.7 square miles (237.6 km) is land and 1.3 square miles (3.3 km), or 1.36%, is water.
The south town line is the border of Pennsylvania. The Susquehanna River flows southward through the town.
New York State Route 17 and Interstate 86 is a major highway crossing the town from east to west. New York State Route 79, a north-south highway, intersects NY-17 at Windsor village.
As of the census of 2000, there were 6,421 people, 2,339 households, and 1,744 families residing in the town. The population density was 70.2 people per square mile (27.1/km²). There were 2,793 housing units at an average density of 30.5 per square mile (11.8/km²). The racial makeup of the town was 97.93% White, 0.59% Black or African American, 0.28% Native American, 0.22% Asian, 0.05% Pacific Islander, 0.17% from other races, and 0.76% from two or more races. Hispanic or Latino of any race were 0.78% of the population.
There were 2,339 households out of which 37.2% had children under the age of 18 living with them, 60.8% were married couples living together, 9.2% had a female householder with no husband present, and 25.4% were non-families. 20.1% of all households were made up of individuals and 8.4% had someone living alone who was 65 years of age or older. The average household size was 2.74 and the average family size was 3.15.
In the town, the population was spread out with 29.5% under the age of 18, 6.4% from 18 to 24, 29.0% from 25 to 44, 23.9% from 45 to 64, and 11.3% who were 65 years of age or older. The median age was 37 years. For every 100 females, there were 98.8 males. For every 100 females age 18 and over, there were 97.4 males.
The median income for a household in the town was $46,043, and the median income for a family was $61,028. Males had a median income of $41,224 versus $35,028 for females. The per capita income for the town was $28,182. About 4.2% of families and 5.9% of the population were below the poverty line, including 9.1% of those under age 18 and 5.8% of those age 65 or over.