The Western District (9 seats) consisted of Allegany, Broome, Cattaraugus, Cayuga, Chautauqua, Cortland, Genesee, Madison, Niagara, Oneida, Onondaga, Ontario, Oswego, Seneca, Steuben, Tioga and Tompkins counties.
Note: There are now 62 counties in the State of New York.