Rosendale is a town in the center of Ulster County, New York, United States. It once contained a village Rosendale (CDP), New York primarily centered around Main Street but was dissolved through vote in 1977. The population was 6,075 at the 2010 census.
According to the United States Census Bureau, the town has a total area of 20.8 square miles (54 km), of which, 19.9 square miles (52 km) of it is land and 0.8 square miles (2.1 km) of it (3.90%) is water.
Rosendale is bisected or bordered by natural and man-made formations. The New York State Thruway (Interstate 87) passes through the town, and the Rondout Creek joins the Wallkill River by the east town line.
As of the census of 2000, there were 6,352 people, 2,587 households, and 1,634 families residing in the town. The population density was 318.5 people per square mile (123.0/km²). There were 2,857 housing units at an average density of 143.3 per square mile (55.3/km²). The racial makeup of the town was 95.72% White, 1.79% African American, 0.28% Native American, 0.44% Asian, 0.43% from other races, and 1.34% from two or more races. Hispanic or Latino of any race were 2.63% of the population.
There were 2,587 households out of which 30.4% had children under the age of 18 living with them, 48.3% were married couples living together, 10.1% had a female householder with no husband present, and 36.8% were non-families. 28.2% 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 2.45 and the average family size was 3.02.
In the town, the population was spread out with 24.6% under the age of 18, 6.8% from 18 to 24, 31.9% from 25 to 44, 25.3% from 45 to 64, and 11.3% who were 65 years of age or older. The median age was 38 years. For every 100 females, there were 97.3 males. For every 100 females age 18 and over, there were 93.5 males.
The median income for a household in the town was $44,282, and the median income for a family was $51,444. Males had a median income of $34,321 versus $28,787 for females. The per capita income for the town was $21,303. About 8.4% of families and 11.9% of the population were below the poverty line, including 17.5% of those under age 18 and 9.6% of those age 65 or over.