Bridgeville is a hamlet southeast of Monticello, New York (the county seat) located in the southern Catskill Mountains in the Town of Thompson, County of Sullivan, and State of New York, U.S.A. Bridgeville is located on the Neversink River on New York State Route 17 (future Interstate 86), at an elevation of . It has hilly terrain.
Since Bridgeville is not a corporate entity and does not have a post office of its own, population figures are not available. See Town of Thompson for area demographic information. Bridgeville shares a ZIP code with nearby Monticello of 12701 and telephone area code 845.