Rosendale is a town in the center of Ulster County, New York, United States. It once contained a village of the same name, which was dissolved through a vote. The population was 6,075 at the 2010 census.
The region was first settled by Europeans around 1685. ROSENDALE was formed from Marbletown, New Paltz and Hurley, April 26, 1844. It is an interior town, lying east of the center of the County. The surface is a rolling and broken upland, the highest summits being from 200 to 500 feet above the valleys. Rondout Creek flows north-east through the town near the center, receiving Coxingkill from the south, and Cottlekill from the north. The Delaware and Hudson Canal extends along the Rondout Creek. The soil is chiefly a sandy loam. In the north-west part of the town are several small lakes, called the Binnewaters. Cement is extensively manufactured throughout the town. The Wallkill Valley R.R. extends through the whole length of the town. In the south-west part are three caves, in a ledge of rocks of the Shawangunk Mountains, where ice is found at all times of the year.