New York Counties

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| Albany | Allegany | Bronx | Broome | Cattaraugus | Cayuga | Chautauqua | Chemung | Chenango | Clinton | Columbia | Cortland | Delaware |

| Dutchess | Erie | Essex | Franklin | Fulton | Genesee | Greene | Hamilton | Herkimer | Jefferson | Kings | Lewis | Livingston | Madison |

| Monroe | Montgomery | Nassau | New York | Niagara | Oneida | Onondaga | Ontario | Orange | Orleans | Oswego |

| Otsego | Putnam | Queens | Rensselaer | Richmond | Rockland | St Lawrence | Saratoga | Schenectady | Schoharie | Schuyler |

| Seneca | Steuben | Suffolk | Sullivan | Tioga | Tompkins | Ulster | Warren | Washington | Wayne | Westchester | Wyoming | Yates


  1. Albany - 1 Nov 1683 from Colonial lands. Parts taken to make Tryon 1772, Charlotte 1772, Columbia 1786, Rensselaer 1791, Saratoga 1791, Schoharie 1795, Greene 1800, Schenectady 1809.
    | 1865 | 1892 | 1905 |
  2. Allegany - 7 Apr 1806 from Genesee. Part added 1808 from Steuben. Parts taken to make Genesee 1811, Tioga 1822, Wyoming 1846.
  3. | 1865 | 1892 | 1905 |
  4. Bronx - 1914 from New York.
    | 1865 | 1892 | 1905 |
  5. Broome - 28 Mar 1806 from Tioga. Part taken to add to Tioga 1822.
    | 1865 | 1892 | 1905 |
  6. Cattaraugus - 11 Mar 1808 from Genesee.
    | 1865 | 1892 | 1905 |
  7. Cayuga - 8 Mar 1799 from Onondaga. Parts taken to make Seneca 1804, Tompkins 1817.
    | 1865 | 1892 | 1905 |
  8. Chautauqua - 11 Mar 1808 from Genesee.
    | 1865 | 1892 | 1905 |
  9. completed | 5030 records
  10. Chemung - 29 Mar 1836 from Tioga. Part taken to make Schuyler 1854.
    | 1865 | 1892 | 1905 |
  11. Chenango - 15 Mar 1798 from Herkimer, Tioga. Parts taken to make Oneida 1804, Madison 1806.
    | 1865 | 1892 | 1905 |
  12. Clinton - 7 Mar 1788 from Washington. Parts taken to make Essex 1799, Oneida 1801, St. Lawrence 1802, Franklin 1808.
    | 1865 | 1892 | 1905 |
  13. Columbia - 4 Apr 1786 from Albany.
    | 1865 | 1892 | 1905 |
  14. Cortland - 8 Apr 1808 from Onondaga.
    | 1865 | 1892 | 1905 |
  15. Delaware - 10 Mar 1797 from Ulster, Otsego.
    | 1865 | 1892 | 1905 |
  16. Dutchess - formed 1 Nov 1683 from Colonial Lands then annexed to Ulster Co and separated in 1713. Parts taken to add to Albany 1797, make Putnam 1812.
    | 1865 | 1892 | 1905 |
  17. Erie - 2 Apr 1821 from Niagara.
    | 1865 | 1892 | 1905 | updated 12 September 2009
  18. Essex - 1 Mar 1799 from Clinton and Franklin.
    | 1865 | 1892 | 1905 |
  19. Franklin - 11 Mar 1808 from Clinton. Part added to Essex 1822.
    | 1865 | 1892 | 1905 |
  20. Fulton - 18 Apr 1838 from Montgomery. Hamilton Co was attached to Fulton 1838.
    | 1865 | 1892 | 1905 |
  21. Genesee - 30 Mar 1802 from Ontario. Parts taken for Allegany 1806, Cattaraugus 1808, Chautauqua 1808, Niagara 1808, Livingston 1821, Monroe 1821, Orleans 1824, Wyoming 1841.
    | 1865 | 1892 | 1905 |
  22. Greene - 30 Mar 1802 from Ulster. Part taken for Ulster 1812.
    | 1865 | 1892 | 1905 |
  23. Hamilton - 21 Feb 1816 from Montgomery but remained attached until 1838. Attached 1838 to Fulton Co. briefly.
    | 1865 | 1892 | 1905 |
  24. Herkimer - 16 Feb 1791 from Montgomery, Otsego. Parts taken for Onondaga 1794, Oneida 1798, Chenango 1798.
    | 1865 | 1892 | 1905 |
  25. Jefferson - 28 Mar 1805 from Oneida. Parts taken for Lewis 1803 and 1809.
    | 1865 | 1892 | 1905 |
  26. Kings - 1 Nov 1683 Colonial Lands. Check New York County for many wills filed from Kings County in early years
    | 1865 | 1892 | 1905 |
  27. Lewis - 28 Mar 1805 from Oneida, Jefferson.
    | 1865 | 1892 | 1905 |
  28. Livingston - 23 Feb 1821 from Genesee, Ontario. Parts taken for Allegany 1846, 1856.
    | 1865 | 1892 | 1905 |
  29. Madison - 21 Mar 1806 from Chenango. Part taken for Oneida 1836.
    | 1865 | 1892 | 1905 |
  30. Monroe - 23 Feb 1821 from Genesee, Ontario.
    | 1865 | 1892 | 1905 |
  31. Montgomery - 2 Mar 1772 from Albany as Tryon County and renamed 1784. Parts taken for Ontario 1789, Herkimer 1791, Otsego 1791, Tioga 1791, Hamilton 1816.
    | 1865 | 1892 | 1905 |
  32. Nassau - 1899 from Queens.
  33. | 1905 |
  34. New York - 1652 Colonial Lands. Part taken for Bronx 1914.
    | 1865 | 1892 | 1905 |
  35. Niagara - 11 Mar 1818 from Genesee. Part taken for Erie 1821.
    | 1865 | 1892 | 1905 |
  36. Oneida - 15 Mar 1798 from Herkimer. Part from Madison added 1836. Parts taken for Clinton 1801, Chenango 1804, Lewis 1805, Jefferson 1805, Oswego 1816.
    | 1865 | 1892 | 1905 |
  37. Onondaga - 5 Mar 1794 from Herkimer. Parts taken for Cayuga 1799, Cortland 1808, Oswego 1816.
    | 1865 | 1892 | 1905 |
  38. Ontario - 27 Jan 1789 from Montgomery. Parts taken from Montgomery 1791, Steuben 1814. Parts taken for Steuben 1796, Genesee 1802, Monroe 1821, Livingston 1821, Wayne 1823, Yates 1823.
    | 1865 | 1892 | 1905 |
  39. Orange - 1 Nov 1683 Colonial Lands. Part taken for Ulster and Rockland 1798.
    | 1865 | 1892 | 1905 |
  40. Orleans - 11 Nov 1824 from Genesee. Shelby Twp taken from Genesee 1825.
    | 1865 | 1892 | 1905 |
  41. Oswego - 1 Mar 1816 from Oneida and Onondaga.
    | 1865 | 1892 | 1905 |
  42. Otsego - 16 Feb 1791 from Montgomery. Parts taken for Schoharie 1795, Delaware 1797.
    | 1865 | 1892 | 1905 |
  43. Putnam - 12 Jun 1812 from Dutchess.
    | 1865 | 1892 | 1905 |
  44. Queens - 1 Nov 1683 Colonial Lands. Part taken for Nassau 1899.
    | 1865 | 1892 | 1905 |
  45. Rensselaer - 7 Feb 1791 from Albany.
    | 1865 | 1892 | 1905 |
  46. Richmond - 1 Nov 1683 Colonial Lands.
    | 1865 | 1892 | 1905 |
  47. Rockland - 23 Feb 1798 from Orange.
    | 1865 | 1892 | 1905 |
  48. Saint Lawrence - 3 Mar 1805 from Clinton, Herkimer, Montgomery.
    | 1865 | 1892 | 1905 |
  49. Saratoga - 7 Feb 1791 from Albany.
    | 1865 | 1892 | 1905 |
  50. Schenectady - 7 Mar 1809 from Albany.
    | 1865 | 1892 | 1905 |
  51. Schoharie - 6 Apr 1795 from Albany, Otsego. Part taken for Greene 1836.
    | 1865 | 1892 | 1905 |
  52. Schuyler - 17 Apr 1854 from Chemung, Steuben, Tompkins.
    | 1865 | 1892 | 1905 |
  53. Seneca - 29 Mar 1804 from Cayuga. Parts taken for Tompkins 1817, Wayne 1823.
    | 1865 | 1892 | 1905 |
  54. Steuben - 18 Mar 1796 from Ontario. Parts taken for Allegany 1808, Ontario 1814, Livingston 1822, Yates 1824.
    | 1865 | 1892 | 1905 |
  55. Suffolk - 1 Nov 1683 Colonial Lands.
  56. | 1865 | 1892 | 1905 |
  57. Sullivan - 27 Mar 1809 from Ulster.
  58. | 1865 | 1892 | 1905 |
  59. Tioga - 16 Feb 1791 from Montgomery. Parts taken for Chenango 1798, Broome 1806, Tompkins 1822, Chemung 1836.
    | 1865 | 1892 | 1905 |
  60. Tompkins - 17 Apr 1817 from Cayuga, Seneca. Parts taken for Tioga 1822, Schuyler 1854.
    | 1865 | 1892 | 1905 |
  61. Ulster - 1 Nov 1683 Colonial Lands. Parts taken for Delaware 1797, Orange 1798, Greene 1800, Sullivan 1809. Catskill Twp taken from Albany 1798.
    | 1865 | 1892 | 1905 |
  62. Warren - 12 Mar 1813 from Washington.
    | 1865 | 1892 | 1905 |
  63. Washington - 12 Mar 1772 from Albany as Charlotte, renamed 1784. Part taken for Clinton 1788, Warren 1813.
    | 1865 | 1892 | 1905 |
  64. Wayne - 11 Apr 1823 from Ontario, Seneca.
    | 1865 | 1892 | 1905 |
  65. Westchester - 1 Nov 1683 Colonial Lands. Part taken for Bronx 1914.
    | 1865 | 1892 | 1905 |
  66. Wyoming - 14 May 1841 from Genesee. Eagle, Pike and part of Portage Twps taken from Allegany 1846.
    | 1865 | 1892 | 1905 |
  67. Yates - 5 Feb 1823 from Ontario. Barrington and Starkey Twps taken from Steuben 1824.
    | 1865 | 1892 | 1905 |
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