Coordinates: 43°12′53″N 76°42′39″W / 43.21472°N 76.71083°W Westbury is a hamlet on the border of the Town of Victory in Cayuga County and the Town of Butler in Wayne County, New York, United States. It is located 4 miles (6 km) south of the Village of Red Creek and 6 miles (10 km) east of the Village of Wolcott, at an elevation of 400 feet (122 m). The primary cross roads where the hamlet is located are Westbury Cutoff Road (CR 267), Westbury Road (CR 266, CR 268) and Victory Road (CR 108). N.Y. Route 370 passes just west of Westbury. The hamlet is a short drive from N.Y. Route 104, N.Y. Route 104A and Ridge Road (CR 163).
Butler Correctional Facility, a New York State medium security prison, was located just west of the hamlet. It closed on July 26, 2014.