Slate Hill is one of the eight hamlets found in the town of Wawayanda, New York. It is home to the Minisink Valley Central School District. Slate Hill is found in Orange County, New York, United States, one of the fastest-growing counties in the state. The area, along with its surrounding regions and the county in which it resides, has seen a recent surge in population growth that can be partially attributed to suburbanization from the New York City metropolitan area.