Sampson State Park Seneca Lake from Sampson State Park Location of Sampson State Park within New York State Type State park Location 6096 Route 96A Romulus, New York[1] Coordinates 42°44′10″N 76°54′29″W﻿ / ﻿42.736°N 76.908°W﻿ / 42.736; -76.908Coordinates: 42°44′10″N 76°54′29″W﻿ / ﻿42.736°N 76.908°W﻿ / 42.736; -76.908 Area 2,070 acres (8.4 km2)[2] Created 1960 (1960)[3] Operated by New York State Office of Parks, Recreation and Historic Preservation Visitors 166,043 (in 2014)[4] Open All year Camp sites 309 (245 electric)[1] Website Sampson State Park