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List of New York counties
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List of New York counties

List of New York counties:
  1. Albany County: formed in 1683 as one of the original 12 counties. County seat: Albany.
  2. Allegany County: formed in 1806 from part of Genesee County. County seat: Belmont.
  3. Bronx County: formed in 1914 from part of New York County that originally was in Westchester County. County seat: The Bronx. Coextensive with the Borough of The Bronx in New York City.
  4. Broome County: formed in 1806 from part of Tioga County. County seat: Binghamton.
  5. Cattaraugus County: formed in 1808 from part of Genesee County. County seat: Little Valley.
  6. Cayuga County: formed in 1799 from part of Onondaga County. County seat: Auburn.
  7. Chautauqua County: formed in 1808 from part of Genesee County. County seat: Mayville.
  8. Chemung County: formed in 1798 from part of Tioga County. County seat: Elmira.
  9. Chenango County: formed in 1798 from parts of Tioga County and Herkimer County. County seat: Norwich.
  10. Clinton County: formed in 1788 from part of Washington County. County seat: Plattsburgh.
  11. Columbia County: formed in 1786 from part of Albany County. County seat: Hudson.
  12. Cortland County: formed in 1808 from part of Onondaga County. County seat: Cortland.
  13. Delaware County: formed in 1797 from parts of Otsego County and Ulster County. County seat: Delhi.
  14. Dutchess County: formed in 1683 as one of the original 12 counties. County seat: Poughkeepsie
  15. Erie County: formed in 1821 from part of Niagara County. County seat: Buffalo.
  16. Essex County: formed in 1799 from part of Clinton County. County seat: Elizabethtown.
  17. Franklin County: formed in 1808 from part of Clinton County. County seat: Malone.
  18. Fulton County: formed in 1838 from part of Montgomery County. County seat: Johnstown.
  19. Genesee County: formed in 1802 from part of Ontario County. County seat: Batavia.
  20. Greene County: formed in 1800 from parts of Albany County and Ulster County. County seat: Catskill.
  21. Hamilton County: formed in 1816 from part of Montgomery County. County seat: Lake Pleasant.
  22. Herkimer County: formed in 1791 from part of Montgomery County. County seat: Herkimer.
  23. Jefferson County: formed in 1805 from part of Oneida County. County seat: Watertown.
  24. Kings County: formed in 1683 as one of the original 12 counties. County seat: Brooklyn. Coextensive with the borough of Brooklyn in New York City.
  25. Lewis County: formed in 1805 from part of Oneida County. County seat: Lowville.
  26. Livingston County: formed in 1821 from parts of Genesee County and Ontario County. County seat: Geneseo.
  27. Madison County: formed in 1806 from part of Chenango County. County seat: Wampsville.
  28. Monroe County: formed in 1821 from parts of Genesee County and Ontario County. County seat: Rochester.
  29. Montgomery County: formed in 1772 as Tryon County from part of Albany County. Renamed Montgomery County in 1784. County seat: Fonda.
  30. Nassau County: formed in 1899 from Queens County. County seat: Mineola.
  31. New York County: formed in 1683 as one of the original 12 counties. County seat: Manhattan. Coextensive with the Borough of Manhattan in New York City.
  32. Niagara County: formed in 1808 from part of Genesee County. County seat: Lockport.
  33. Oneida County: formed in 1798 from part of Herkimer County. County seat: Utica.
  34. Onondaga County: formed in 1792 from part of Herkimer County. County seat: Syracuse.
  35. Ontario County: formed in 1789 from part of Montgomery County. County seat: Canandaigua.
  36. Orange County: formed in 1683 as one of the original 12 counties. County seat: Goshen.
  37. Orleans County: formed in 1824 from part of Genesee County. County seat: Albion.
  38. Oswego County: formed in 1816 from parts of Otsego County and Onondaga County. County seat: Pulaski.
  39. Otsego County: formed in 1791 from part of Montgomery County. County seat: Cooperstown.
  40. Putnam County: formed in 1812 from part of Dutchess County. County seat: Carmel.
  41. Queens County: formed in 1683 as one of the original 12 counties. County seat: Jamaica. Coextensive with the Borough of Queens in New York City.
  42. Rensselaer County: formed in 1791 from part of Albany County. County seat: Troy.
  43. Richmond County: formed in 1683 as one of the original 12 counties. County seat: St. George. Coextensive with the borough of Richmond and with Staten Island in New York City.
  44. Rockland County: formed in 1798 from part of Orange County. County seat: New City.
  45. Saratoga County: formed in 1791 from part of Albany County. County seat: Ballston Spa.
  46. Schenectady County: formed in 1809 from part of Albany County. County seat: Schenectady.
  47. Schoharie County: formed in 1795 from parts of Albany County and Otsego County. County seat: Schoharie.
  48. Schuyler County: formed in 1795 from parts of Chemung County, Steuben County, and Tompkins County. County seat: Watkins Glen.
  49. Seneca County: formed in 1804 from part of Cayuga County. County seats: Ovid and Waterloo.
  50. St. Lawrence County: formed in 1802 from parts of Clinton County, Herkimer County, and Montgomery County. County seat: Canton.
  51. Steuben County: formed in 1796 from part of Ontario County. County seat: Bath.
  52. Suffolk County: formed in 1683 as one of the original 12 counties. County seat: Riverhead
  53. Sullivan County: formed in 1809 from part of Ulster County. County seat: Monticello.
  54. Tioga County: formed in 1791 from part of Montgomery County. County seat: Owego.
  55. Tompkins County: formed in 1817 from parts of Cayuga County and Seneca County. County seat: Ithaca.
  56. Ulster County: formed in 1683 as one of the original 12 counties. County seat: Kingston
  57. Warren County: formed in 1813 from part of Washington County. County seat: Lake George.
  58. Washington County: formed in 1772 as Charlotte County from part of Albany County. Renamed Washington County in 1784. County seat: Hudson Falls.
  59. Wayne County: formed in 1823 from parts of Ontario County and Seneca County. County seat: Lyons.
  60. Westchester County: formed in 1683 as one of the original 12 counties. County seat: White Plains
  61. Wyoming County: formed in 1841 from part of Genesee County. County seat: Warsaw.
  62. Yates County: formed in 1823 from parts of Ontario County and Steuben County. County seat: Pen Yann.

The largest county in New York based on area is St. Lawrence County, and the smallest is New York County. The largest county based on population is Kings County, and the smallest is Hamilton County. The easternmost county is Suffolk County and the westernmost is Chautauqua County. The northernmost county is St. Lawrence County and the southernmost is Richmond County. The newest county is Bronx County (formed in 1914).

Table of contents
1 Defunct counties
2 External link

Defunct counties

  1. Charlotte County: formed from Albany County in 1772, but renamed and partitioned. See Washington County, New York.
  2. Cornwall County: formed in 1683 as one of the original 12 counties. Transferred to Massachusetts by royal order in 1686.
  3. Cumberland County: formed in 1766 from part of Albany County. Returned to it in 1767. Reinstated in 1768. Lost when Vermont declared its independence in 1777.
  4. Dukes County: formed in 1683 as one of the original 12 counties. Transferred to Massachusetts in 1691.
  5. Gloucester County: formed in 1770 from Albany County. Lost when Vermont declared its independence in 1777.
  6. Tryon County: formed in 1772 from Albany County and renamed Montgomery County in 1784. Subsequently, many parts were removed to form other New York counties.

See also

External link

Map of New York counties