Westernville, New York

Westernville
Hamlet and census-designated place
Westernville
Coordinates: 43°18′20″N 75°22′59″W / 43.30556°N 75.38306°W / 43.30556; -75.38306
CountryUnited States
StateNew York
CountyOneida
Area
 • Total
0.39 sq mi (1.00 km2)
 • Land0.36 sq mi (0.92 km2)
 • Water0.031 sq mi (0.08 km2)
Elevation
561 ft (171 m)
Time zoneUTC-5 (Eastern (EST))
 • Summer (DST)UTC-4 (EDT)
Area code315
GNIS feature ID970916

Westernville, New York is a hamlet (and census-designated place) in Oneida County, located west of Adirondack Park and north of Rome, and Utica. As of the 2020 census, Westernville had a population of 144. Westernville is in the Town of Western, adjacent to Delta Reservoir and Delta Lake State Park.