New York - 974.7 Dewey Decimal Numbers for U.S. States and Counties County Dewey Decimal Number Albany 974.742 Allegany 974.784 Bronx 974.7275 Broome 974.775 Cattaraugus 974.794 Cayuga 974.768 Chautauqua 974.795 Chemung 974.778 Chenango 974.773 Clinton 974.754 Columbia 974.739 Cortland 974.772 Delaware 974.736 Dutchess 974.733 Erie 974.796 Essex 974.753 Franklin 974.755 Fulton 974.747 Genesee 974.792 Greene 974.737 Hamilton 974.752 Herkimer 974.761 Jefferson 974.757 Kings 974.723 Lewis 974.759 Livingston 974.785 Madison 974.764 Monroe 974.788 Montgomery 974.746 Nassau 974.7245 New York 974.71 County Dewey Decimal Number Niagara 974.798 Oneida 974.762 Onondaga 974.765 Ontario 974.786 Orange 974.731 Orleans 974.791 Oswego 974.767 Otsego 974.774 Putnam 974.732 Queens 974.7243 Rensselaer 974.741 Richmond 974.726 Rockland 974.728 Saint Lawrence 974.756 Saratoga 974.748 Schenectady 974.744 Schoharie 974.745 Schuyler 974.781 Seneca 974.769 Steuben 974.783 Suffolk 974.725 Sullivan 974.735 Tioga 974.777 Tompkins 974.771 Ulster 974.734 Warren 974.751 Washington 974.749 Wayne 974.787 Westchester 974.7277 Wyoming 974.793 Yates 974.782