# List of counties in New York

There are 62 counties in the U.S. state of New York.
The first 12 counties were created in 1683 soon after the British took over the Dutch colony of New Amsterdam; two of these counties were later abolished, their land going to Massachusetts. These counties were carried over after independence in 1783, but most of the counties were created by the state in the 19th century. The newest county is the Bronx, created in 1914 from the portions of New York County that had been annexed from Westchester County in the late 19th century. New York's counties are named for various Native American words; British provinces, counties, cities, and royalty; early American statesmen and military personnel; and New York State politicians.

## Authority

Excepting the five boroughs of New York City, New York counties are governed by New York County Law and have governments run by either a Board of Supervisors or a County Legislature, and either an elected County Executive or appointed county manager. Counties without charters are run by a Board of Supervisors, in which Town Supervisors from towns within the county also sit on the county Board of Supervisors. For counties with a charter, the executives generally have powers to veto acts of the county legislature. The legislatures have powers of setting policies, levying taxes and distributing funds.
Throughout the state, including NYC, the court system and public prosecution is primarily a matter of state law but is generally organized along county lines, chosen by county voters.

## Five boroughs of New York City

Five of New York's counties are each coextensive with New York City's five boroughs. They are New York County (Manhattan), Kings County (Brooklyn), Bronx County (The Bronx), Richmond County (Staten Island), and Queens County (Queens). They are the smallest counties in New York by area.
In contrast to other counties of New York, the powers of the five boroughs of New York City are very limited and in nearly all respects are governed by the city government. Some officials are elected on a borough-wide basis, the five borough presidents deal with Borough matters, while the district attorneys, and all county and state supreme court judges are generally concerned with the administration of state criminal and civil law and local ordinances in the county. There are no official county seats, but the locations of borough halls and courthouses bestow certain neighborhoods an informal designation as county seats within their boroughs:
* The Bronx County Courthouse and the borough's main post office are located in the Concourse section of the Bronx. The separate Bronx Borough Hall burned down in 1969.
* Brooklyn Borough Hall, the Federal Building and Post Office, and county Supreme Court are in Downtown Brooklyn.
* The Municipal Building, where the Manhattan Borough President's office is located, and most courthouses are in the downtown Civic Center. The General Post Office is in Midtown Manhattan.
* Queens Borough Hall and a courthouse are in Kew Gardens. Another major courthouse, post office, and the Long Island Railroad hub are in Jamaica. Queens also has general post offices in Flushing, Long Island City and Far Rockaway.
* Staten Island Borough Hall, three courthouses, and the St. George Terminal transportation hub are in the St. George neighborhood.

## List of counties

| County | FIPS Code | County seat | Est. | Formed from | Named for | Density (Pop./mi$^2$) | Pop. (2024) | Area |
| Albany County | 001 | Albany | Nov 1, 1683 | One of 12 original counties created in the New York colony | James II of England (James VII of Scotland) (1633–1701), who was Duke of York (English title) and Duke of Albany (Scottish title) before becoming King of England, Ireland, and Scotland. | 600.31 | 319,964 | 533 sq mi (1,380 km$^2$) |
| Allegany County | 003 | Belmont | Apr 7, 1806 | Genesee County | A variant spelling of the Allegheny River | 45.74 | 47,299 | 1,034 sq mi (2,678 km$^2$) |
| Bronx County | 005 | none (sui generis) | Jan 1, 1914 | New York County | The Bronx River | 24,111.51 | 1,384,724 | 57.43 sq mi (149 km$^2$) |
| Broome County | 007 | Binghamton | Mar 28, 1806 | Tioga County | John Broome (1738–1810), fourth Lieutenant Governor of New York | 274.68 | 196,397 | 715 sq mi (1,852 km$^2$) |
| Cattaraugus County | 009 | Little Valley | Mar 11, 1808 | Genesee County | A word from an uncertain Iroquoian language meaning "bad smelling banks", referring to the odor of natural gas which leaked from Cattaraugus Creek | 57.61 | 75,475 | 1,310 sq mi (3,393 km$^2$) |
| Cayuga County | 011 | Auburn | Mar 8, 1799 | Onondaga County | The Cayuga tribe of Native Americans | 86.30 | 74,567 | 864 sq mi (2,238 km$^2$) |
| Chautauqua County | 013 | Mayville | Mar 11, 1808 | Genesee County | Loanword from the Erie language describing Chautauqua Lake; language now lost and cannot be translated | 82.74 | 124,105 | 1,500 sq mi (3,885 km$^2$) |
| Chemung County | 015 | Elmira | Mar 20, 1836 | Tioga County | A Lenape word meaning "big horn", which was the name of a local Native American village | 197.45 | 81,115 | 410.81 sq mi (1,064 km$^2$) |
| Chenango County | 017 | Norwich | Mar 15, 1798 | Tioga County and Herkimer County | An Onondaga word meaning "large bull-thistle" | 50.93 | 45,776 | 898.85 sq mi (2,328 km$^2$) |
| Clinton County | 019 | Plattsburgh | Mar 4, 1788 | Washington County | George Clinton (1739–1812), fourth Vice President of the United States and first and third Governor of New York | 69.65 | 77,871 | 1,118 sq mi (2,896 km$^2$) |
| Columbia County | 021 | Hudson | Apr 1, 1786 | Albany County | Christopher Columbus (1451–1506), the European explorer | 93.05 | 60,299 | 648 sq mi (1,678 km$^2$) |
| Cortland County | 023 | Cortland | Apr 8, 1808 | Onondaga County | Pierre Van Cortlandt (1721–1814), first Lieutenant Governor of New York | 91.52 | 45,945 | 502 sq mi (1,300 km$^2$) |
| Delaware County | 025 | Delhi | Mar 10, 1797 | Otsego County and Ulster County | Thomas West, 3rd Baron De La Warr (1577–1618), an early colonial leader in Virginia. Name applied to the bay, river, and Lenape Native Americans | 30.10 | 44,191 | 1,468 sq mi (3,802 km$^2$) |
| Dutchess County | 027 | Poughkeepsie | Nov 1, 1683 | One of 12 original counties created in the New York colony | Mary of Modena (1658–1718), Duchess of York and wife of King James II of England | 363.59 | 299,963 | 825 sq mi (2,137 km$^2$) |
| Erie County | 029 | Buffalo | Apr 2, 1821 | Niagara County | The Erie tribe of Native Americans | 774.74 | 950,602 | 1,227 sq mi (3,178 km$^2$) |
| Essex County | 031 | Elizabethtown | Mar 1, 1799 | Clinton County | The county of Essex in England | 19.18 | 36,744 | 1,916 sq mi (4,962 km$^2$) |
| Franklin County | 033 | Malone | Mar 11, 1808 | Clinton County | Benjamin Franklin (1706–1790), the early American printer, scientist, and statesman | 27.75 | 47,086 | 1,697 sq mi (4,395 km$^2$) |
| Fulton County | 035 | Johnstown | Apr 18, 1838 | Montgomery County | Robert Fulton (1765–1815), inventor of the steamship | 97.70 | 52,073 | 533 sq mi (1,380 km$^2$) |
| Genesee County | 037 | Batavia | Mar 30, 1802 | Ontario County and land acquired in the Holland Purchase | A Seneca phrase meaning "good valley" | 116.37 | 57,604 | 495 sq mi (1,282 km$^2$) |
| Greene County | 039 | Catskill | Mar 25, 1800 | Albany County and Ulster County | Nathanael Greene (1742–1786), the American Revolutionary War general | 71.28 | 46,903 | 658 sq mi (1,704 km$^2$) |
| Hamilton County | 041 | Lake Pleasant | Apr 12, 1816 | Montgomery County | Alexander Hamilton (1755–1804), the early American political theorist and first Secretary of the Treasury | 2.81 | 5,082 | 1,808 sq mi (4,683 km$^2$) |
| Herkimer County | 043 | Herkimer | Feb 16, 1791 | Montgomery County | Nicholas Herkimer (1728–1777), the American Revolutionary War general | 40.87 | 59,585 | 1,458 sq mi (3,776 km$^2$) |
| Jefferson County | 045 | Watertown | Mar 28, 1805 | Oneida County | Thomas Jefferson (1743–1826), the early American statesman, author of the Declaration of Independence, and third President of the United States | 60.93 | 113,140 | 1,857 sq mi (4,810 km$^2$) |
| Kings County | 047 | none (sui generis) | Nov 1, 1683 | One of 12 original counties created in the New York colony | King Charles II of England (1630–1685) | 27,013.74 | 2,617,631 | 96.9 sq mi (251 km$^2$) |
| Lewis County | 049 | Lowville | Mar 28, 1805 | Oneida County | Morgan Lewis (1754–1844), the fourth Governor of New York | 20.60 | 26,570 | 1,290 sq mi (3,341 km$^2$) |
| Livingston County | 051 | Geneseo | Feb 23, 1821 | Genesee County and Ontario County | Robert Livingston (1746–1813), the early American statesman and New York delegate to the Continental Congress | 96.19 | 61,561 | 640 sq mi (1,658 km$^2$) |
| Madison County | 053 | Wampsville | Mar 21, 1806 | Chenango County | James Madison (1751–1836), the early American statesman, principal author of the Constitution of the United States, and fourth President of the United States | 101.32 | 67,072 | 662 sq mi (1,715 km$^2$) |
| Monroe County | 055 | Rochester | Feb 23, 1821 | Genesee County and Ontario County | James Monroe (1758–1831), the early American statesman and fifth President of the United States | 550.66 | 752,202 | 1,366 sq mi (3,538 km$^2$) |
| Montgomery County | 057 | Fonda | Mar 12, 1772 | Albany County | Originally Tryon County after colonial governor William Tryon (1729–1788), renamed after the American Revolutionary War general Richard Montgomery (1738–1775) in 1784 | 121.09 | 49,648 | 410 sq mi (1,062 km$^2$) |
| Nassau County | 059 | Mineola | Jan 1, 1899 | Queens County | The Princes of Orange-Nassau ruled the Netherlands when Long Island was a Dutch colony | 3,073.81 | 1,392,438 | 453 sq mi (1,173 km$^2$) |
| New York County | 061 | none (sui generis) | Nov 1, 1683 | One of 12 original counties created in the New York colony | King James II of England (1633–1701), who was Duke of York and Albany before he ascended the throne of England, Duke of York being his English title | 49,175.72 | 1,660,664 | 33.77 sq mi (87 km$^2$) |
| Niagara County | 063 | Lockport | Mar 11, 1808 | Genesee County | The Iroquoian name of a tribe within the Neutral Nation, the exact translation of which remains disputed | 183.83 | 209,570 | 1,140 sq mi (2,953 km$^2$) |
| Oneida County | 065 | Utica | Mar 15, 1798 | Herkimer County | The Oneida tribe of Native Americans | 188.25 | 228,347 | 1,213 sq mi (3,142 km$^2$) |
| Onondaga County | 067 | Syracuse | Mar 5, 1794 | Herkimer County | The Onondaga tribe of Native Americans | 582.89 | 469,812 | 806 sq mi (2,088 km$^2$) |
| Ontario County | 069 | Canandaigua | Jan 27, 1789 | Land acquired in the Phelps and Gorham Purchase | An Iroquoian word meaning "beautiful lake" | 170.71 | 113,012 | 662 sq mi (1,715 km$^2$) |
| Orange County | 071 | Goshen | Nov 1, 1683 | One of 12 original counties created in the New York colony | William of Orange-Nassau (1650–1702), who became King William III of England | 490.78 | 411,767 | 839 sq mi (2,173 km$^2$) |
| Orleans County | 073 | Albion | Nov 12, 1824 | Genesee County | The French Royal House of Orléans | 48.58 | 39,686 | 817 sq mi (2,116 km$^2$) |
| Oswego County | 075 | Oswego | Mar 1, 1816 | Oneida County and Onondaga County | The Oswego River, from an Iroquoian word meaning "the outpouring", referring to the mouth of the river | 90.17 | 118,305 | 1,312 sq mi (3,398 km$^2$) |
| Otsego County | 077 | Cooperstown | Feb 16, 1791 | Montgomery County | A Native American word meaning "place of the rock" | 60.34 | 60,524 | 1,003 sq mi (2,598 km$^2$) |
| Putnam County | 079 | Carmel Hamlet | Jun 12, 1812 | Dutchess County | Israel Putnam (1718–1790), an American Revolutionary War general | 400.04 | 98,409 | 246 sq mi (637 km$^2$) |
| Queens County | 081 | none (sui generis) | Nov 1, 1683 | One of 12 original counties created in the New York colony | Catherine of Braganza (1638–1705), Queen of England and wife of King Charles II of England | 12,995.52 | 2,316,841 | 178.28 sq mi (462 km$^2$) |
| Rensselaer County | 083 | Troy | Feb 7, 1791 | Albany County | In honor of the family of Kiliaen van Rensselaer (before 1596 – after 1643), the early landholder in the Dutch New Netherland colony | 241.73 | 160,749 | 665 sq mi (1,722 km$^2$) |
| Richmond County | 085 | none (sui generis) | Nov 1, 1683 | One of 12 original counties created in the New York colony | Charles Lennox, 1st Duke of Richmond (1672–1723), the illegitimate son of King Charles II of England | 4,860.60 | 498,212 | 102.5 sq mi (265 km$^2$) |
| Rockland County | 087 | New City | Feb 23, 1798 | Orange County | Early settlers' description of terrain as "rocky land" | 1,749.47 | 348,144 | 199 sq mi (515 km$^2$) |
| St. Lawrence County | 089 | Canton | Mar 3, 1802 | Clinton County, Herkimer County, and Montgomery County | The St Lawrence River, which forms the northern border of the county and New York State | 37.65 | 106,198 | 2,821 sq mi (7,306 km$^2$) |
| Saratoga County | 091 | Ballston Spa | Feb 7, 1791 | Albany County | A corruption of a Native American word meaning "the hill beside the river" | 284.79 | 240,360 | 844 sq mi (2,186 km$^2$) |
| Schenectady County | 093 | Schenectady | Mar 27, 1809 | Albany County | A Mohawk word meaning "on the other side of the pine lands" | 772.67 | 162,261 | 210 sq mi (544 km$^2$) |
| Schoharie County | 095 | Schoharie | Apr 6, 1795 | Albany County and Otsego County | A Mohawk word meaning "floating driftwood" | 48.16 | 30,151 | 626 sq mi (1,621 km$^2$) |
| Schuyler County | 097 | Watkins Glen | Apr 17, 1854 | Chemung County, Steuben County, and Tompkins County | Philip Schuyler (1733–1804), the American Revolutionary War general and Senator from New York | 50.06 | 17,121 | 342 sq mi (886 km$^2$) |
| Seneca County | 099 | Waterloo | Mar 24, 1804 | Cayuga County | The Seneca tribe of Native Americans | 100.46 | 32,650 | 325 sq mi (842 km$^2$) |
| Steuben County | 101 | Bath | Mar 18, 1796 | Ontario County | Friedrich Wilhelm von Steuben (1730–1794), the Prussian general who assisted the Continental Army during the American Revolutionary War | 65.54 | 92,015 | 1,404 sq mi (3,636 km$^2$) |
| Suffolk County | 103 | Riverhead | Nov 1, 1683 | One of 12 original counties created in the New York colony | The county of Suffolk in England | 647.24 | 1,535,909 | 2,373 sq mi (6,146 km$^2$) |
| Sullivan County | 105 | Monticello | Mar 27, 1809 | Ulster County | John Sullivan (1740–1795), an American Revolutionary War general | 80.69 | 80,450 | 997 sq mi (2,582 km$^2$) |
| Tioga County | 107 | Owego | Feb 16, 1791 | Montgomery County | A Native American word meaning "at the forks", describing a meeting place | 90.96 | 47,574 | 523 sq mi (1,355 km$^2$) |
| Tompkins County | 109 | Ithaca | Apr 7, 1817 | Cayuga County and Seneca County | Daniel D. Tompkins (1774–1825), the 6th Vice President of the United States | 221.85 | 105,602 | 476 sq mi (1,233 km$^2$) |
| Ulster County | 111 | Kingston | Nov 1, 1683 | One of 12 original counties created in the New York colony | The Irish province of Ulster, then an earldom of the Duke of York, later King James II of England | 157.60 | 182,977 | 1,161 sq mi (3,007 km$^2$) |
| Warren County | 113 | Queensbury | Mar 12, 1813 | Washington County | Joseph Warren (1741–1775), the early American patriot and American Revolutionary War general | 75.04 | 65,288 | 870 sq mi (2,253 km$^2$) |
| Washington County | 115 | Fort Edward | Mar 12, 1772 | Albany County | Originally Charlotte County, renamed in 1784 after George Washington (1732–1799), the American Revolutionary War general and first President of the United States | 70.73 | 59,839 | 846 sq mi (2,191 km$^2$) |
| Wayne County | 117 | Lyons | Apr 11, 1823 | Ontario County and Seneca County | General Anthony Wayne (1745–1796), the American Revolutionary War general | 65.58 | 90,757 | 1,384 sq mi (3,585 km$^2$) |
| Westchester County | 119 | White Plains | Nov 1, 1683 | One of 12 original counties created in the New York colony | The city of Chester in England | 2,012.89 | 1,006,447 | 500 sq mi (1,295 km$^2$) |
| Wyoming County | 121 | Warsaw | May 14, 1841 | Genesee County | A modification of a word from the Lenape language meaning "broad bottom lands" | 66.42 | 39,588 | 596 sq mi (1,544 km$^2$) |
| Yates County | 123 | Penn Yan | Feb 5, 1823 | Ontario County and Steuben County | Joseph C. Yates (1768–1837), eighth Governor of New York | 64.86 | 24,387 | 376 sq mi (974 km$^2$) |

## Defunct counties

| County | Created | Abolished | Fate |
| Charlotte County | 1772 | 1784 | Partitioned. Western part renamed as Washington County and eastern part transferred to Vermont. |
| Cornwall County | 1665 | 1686 | Transferred to the part of Massachusetts that later became the state of Maine and partitioned; one of the 12 original counties created in the New York colony |
| Cumberland County | 1766 | 1777 | Transferred to Vermont and partitioned |
| Dukes County | November 1, 1683 | 1692 | Transferred to Massachusetts; one of 12 original counties created in the New York colony |
| Gloucester County | 1770 | 1777 | Transferred to Vermont and partitioned |
| Mexico County | 1792 | 1796 | Never settled or incorporated, reallocated to Oneida, Oswego and Jefferson Counties. |
| Tryon County | 1772 | 1784 | Renamed as Montgomery County |

## Proposed new counties

| County | Note |
| Adirondack County | Would hypothetically consist of portions of northern Essex County and southern Franklin County |
| Peconic County | Would hypothetically consist of the five easternmost towns in Suffolk County on Long Island. |