Verplanck is a hamlet and census-designated place (CDP) in the town of Cortlandt, Westchester County, New York, United States. As of the 2020 census, Verplanck had a population of 1,535. Both the hamlet and Verplanck's Point derive their name from the activities of the Verplanck family, established in New Amsterdam by Abraham Isaacsen Verplanck in the 1630s.