NEW YORK
Browse New York County Histories
Click on a county to see its history. Jurisdictions with resources have a green border. Those displayed in gray are counties that are no longer active under their original designation; to delve deeper into the various reasons for their change, please visit our Understanding Extinct Counties page.
ALBANY COUNTY
ALLEGANY COUNTY
BRONX COUNTY
BROOME COUNTY
CATTARAUGUS COUNTY
CAYUGA COUNTY
CHAUTAUQUA COUNTY
CHEMUNG COUNTY
CHENANGO COUNTY
CHARLOTTE COUNTY
(EXTINCT, 1772–1784) CLINTON COUNTY COLUMBIA COUNTY CORTLAND COUNTY CORNWALL COUNTY
(EXTINCT, 1683–1691) CUMBERLAND COUNTY
(EXTINCT, 1766–1777) DELAWARE COUNTY DUKES COUNTY
(EXTINCT, 1683–1691) DUTCHESS COUNTY ERIE COUNTY ESSEX COUNTY FRANKLIN COUNTY FULTON COUNTY GENESEE COUNTY GLOUCESTER COUNTY
(EXTINCT, 1770–1777) GREENE COUNTY HAMILTON COUNTY HERKIMER COUNTY JEFFERSON COUNTY KINGS COUNTY LEWIS COUNTY LIVINGSTON COUNTY MADISON COUNTY MONROE COUNTY MONTGOMERY COUNTY
(FORMERLY TRYON COUNTY) NANTUCKET COUNTY
(EXTINCT, 1683–1691) NASSAU COUNTY NEW YORK COUNTY NIAGARA COUNTY ONEIDA COUNTY ONONDAGA COUNTY ONTARIO COUNTY ORANGE COUNTY ORLEANS COUNTY OSWEGO COUNTY OTSEGO COUNTY PUTNAM COUNTY QUEENS COUNTY RENSSELAER COUNTY RICHMOND COUNTY ROCKLAND COUNTY ST. LAWRENCE COUNTY SARATOGA COUNTY SCHENECTADY COUNTY SCHOHARIE COUNTY SCHUYLER COUNTY SENECA COUNTY STEUBEN COUNTY SUFFOLK COUNTY SULLIVAN COUNTY TIOGA COUNTY TOMPKINS COUNTY TRYON COUNTY
(EXTINCT, 1772–1784) ULSTER COUNTY WARREN COUNTY WASHINGTON COUNTY
(FORMERLY CHARLOTTE COUNTY) WAYNE COUNTY WESTCHESTER COUNTY WYOMING COUNTY YATES COUNTY
(EXTINCT, 1772–1784) CLINTON COUNTY COLUMBIA COUNTY CORTLAND COUNTY CORNWALL COUNTY
(EXTINCT, 1683–1691) CUMBERLAND COUNTY
(EXTINCT, 1766–1777) DELAWARE COUNTY DUKES COUNTY
(EXTINCT, 1683–1691) DUTCHESS COUNTY ERIE COUNTY ESSEX COUNTY FRANKLIN COUNTY FULTON COUNTY GENESEE COUNTY GLOUCESTER COUNTY
(EXTINCT, 1770–1777) GREENE COUNTY HAMILTON COUNTY HERKIMER COUNTY JEFFERSON COUNTY KINGS COUNTY LEWIS COUNTY LIVINGSTON COUNTY MADISON COUNTY MONROE COUNTY MONTGOMERY COUNTY
(FORMERLY TRYON COUNTY) NANTUCKET COUNTY
(EXTINCT, 1683–1691) NASSAU COUNTY NEW YORK COUNTY NIAGARA COUNTY ONEIDA COUNTY ONONDAGA COUNTY ONTARIO COUNTY ORANGE COUNTY ORLEANS COUNTY OSWEGO COUNTY OTSEGO COUNTY PUTNAM COUNTY QUEENS COUNTY RENSSELAER COUNTY RICHMOND COUNTY ROCKLAND COUNTY ST. LAWRENCE COUNTY SARATOGA COUNTY SCHENECTADY COUNTY SCHOHARIE COUNTY SCHUYLER COUNTY SENECA COUNTY STEUBEN COUNTY SUFFOLK COUNTY SULLIVAN COUNTY TIOGA COUNTY TOMPKINS COUNTY TRYON COUNTY
(EXTINCT, 1772–1784) ULSTER COUNTY WARREN COUNTY WASHINGTON COUNTY
(FORMERLY CHARLOTTE COUNTY) WAYNE COUNTY WESTCHESTER COUNTY WYOMING COUNTY YATES COUNTY