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County FIPS  Created Formed From
Albany County 001 1683 One of 12 original counties created in the New York colony  
Allegany County 003 1806 Genesee County  
Bronx County 005 1914[6] New York County  
Broome County 007 1806 Tioga County  
Cattaraugus County 009 1808 Genesee County  
Cayuga County 011 1799 Onondaga County  
Chautauqua County 013 1808 Genesee County  
Chemung County 015 1836 Tioga County  
Chenango County 017 1798 Tioga County and Herkimer County  
Clinton County 019 1788 Washington County  
Columbia County 021 1786 Albany County  
Cortland County 023 1808 Onondaga County  
Delaware County 025 1797 Otsego County and Ulster County  
Dutchess County 027 1683 One of 12 original counties created in the New York colony  
Erie County 029 1821 Niagara County  
Essex County 031 1799 Clinton County  
Franklin County 033 1808 Clinton County  
Fulton County 035 1838 Montgomery County  
Genesee County 037 1802 Ontario County  
Greene County 039 1800 Albany County and Ulster County  
Hamilton County 041 1816 Montgomery County  
Herkimer County 043 1791 Montgomery County  
Jefferson County 045 1805 Oneida County  
Kings County 047 1683 One of 12 original counties created in the New York colony  
Lewis County 049 1805 Oneida County  
Livingston County 051 1821 Genesee County and Ontario County  
Madison County 053 1806 Chenango County  
Monroe County 055 1821 Genesee County and Ontario County  
Montgomery County 057 1772 Albany County  
Nassau County 059 1899 Queens County  
New York County 061 1683 One of 12 original counties created in the New York colony  
Niagara County 063 1808 Genesee County  
Oneida County 065 1798 Herkimer County  
Onondaga County 067 1792 Herkimer County  
Ontario County 069 1789 Montgomery County  
Orange County 071 1683 One of 12 original counties created in the New York colony  
Orleans County 073 1824 Genesee County  
Oswego County 075 1816 Oneida County and Onondaga County  
Otsego County 077 1791 Montgomery County  
Putnam County 079 1812 Dutchess County  
Queens County 081 1683 One of 12 original counties created in the New York colony  
Rensselaer County 083 1791 Albany County  
Richmond County 085 1683 One of 12 original counties created in the New York colony  
Rockland County 087 1798 Orange County  
Saratoga County 091 1791 Albany County  
Schenectady County 093 1809 Albany County  
Schoharie County 095 1795 Albany County and Otsego County  
Schuyler County 097 1854 Chemung County, Steuben County, and Tompkins County  
Seneca County 099 1804 Cayuga County  
St. Lawrence County 089 1802 Clinton County, Herkimer County, and Montgomery County  
Steuben County 101 1796 Ontario County  
Suffolk County 103 1683 One of 12 original counties created in the New York colony  
Sullivan County 105 1809 Ulster County  
Tioga County 107 1791 Montgomery County  
Tompkins County 109 1817 Cayuga County and Seneca County  
Ulster County 111 1683 One of 12 original counties created in the New York colony  
Warren County 113 1813 Washington County  
Washington County 115 1772 Albany County  
Wayne County 117 1823 Ontario County and Seneca County  
Westchester County 119 1683 One of 12 original counties created in the New York colony  
Wyoming County 121 1841 Genesee County  
Yates County 123 1823 Ontario County and Steuben County