Union is a town in Broome County, New York. As of the 2010 census, the town had a total population of 56,346. The name derives from the town having served as a rendezvous for the Sullivan Expedition.
According to the United States Census Bureau, the town of Union has a total area of 36.0 square miles (93.2 km), of which 35.4 square miles (91.8 km) is land and 0.54 square miles (1.4 km), or 1.49%, is water.
Union is on the north side of the Susquehanna River.
New York State Route 17 crosses from the north to the south side of the Susquehanna in Union. New York State Route 26 and New York State Route 38B intersect by Union Center. NY-26 connects Union to the town of Vestal on the south side of the Susquehanna River. New York State Route 17C is an east-west highway in the south part of Union.
As of the census of 2000, there were 56,298 people, 24,538 households, and 14,551 families residing in the town. The population density was 1,600.8 people per square mile (618.0/km²). There were 26,507 housing units at an average density of 753.7 per square mile (291.0/km²). The racial makeup of the town was 92.72% White, 2.45% African American, 0.17% Native American, 2.68% Asian, 0.03% Pacific Islander, 0.58% from other races, and 1.38% from two or more races. Hispanic or Latino of any race were 1.53% of the population.
There were 24,538 households out of which 26.1% had children under the age of 18 living with them, 45.0% were married couples living together, 10.9% had a female householder with no husband present, and 40.7% were non-families. 34.5% of all households were made up of individuals and 13.6% had someone living alone who was 65 years of age or older. The average household size was 2.24 and the average family size was 2.90.
In the town, the population was spread out with 21.9% under the age of 18, 8.4% from 18 to 24, 28.5% from 25 to 44, 22.4% from 45 to 64, and 18.9% who were 65 years of age or older. The median age was 40 years. For every 100 females, there were 90.1 males. For every 100 females age 18 and over, there were 86.8 males.
The median income for a household in the town was $34,101, and the median income for a family was $46,170. Males had a median income of $35,891 versus $24,120 for females. The per capita income for the town was $20,077. About 8.3% of families and 11.3% of the population were below the poverty line, including 16.4% of those under age 18 and 6.0% of those age 65 or over.