Bloomville is located in the
West Branch Delaware River valley, north of the
Catskill Mountains. Administratively part of Kortright, the Bloomville CDP has according to the
United States Census Bureau, has a total area of , all land. Bloomville is in the southwestern corner of Kortright.
New York State Route 10 passes through the hamlet, leading southwest to
Delhi, the
county seat, and northeast to
Stamford. The west end of the
Catskill Scenic Trail, a rail-trail following the route of the former
Ulster and Delaware Railroad, is in Bloomville. There is a parking lot just across Route 10 from the trailhead. ==Demographics==