Population of Counties in New York (2018)

Name 2018 Population Growth Since 2010
Kings County2,648,7715.49%
Queens County2,358,5825.49%
New York County1,664,7274.75%
Suffolk County1,492,953-0.12%
Bronx County1,471,1605.98%
Nassau County1,369,5142.06%
Westchester County980,2443.08%
Erie County925,5280.69%
Monroe County747,6420.37%
Richmond County479,4582.06%
Onondaga County465,398-0.46%
Orange County382,2262.34%
Rockland County328,8685.22%
Albany County309,6121.81%
Dutchess County295,568-0.73%
Oneida County231,332-1.47%
Saratoga County229,8694.43%
Niagara County211,328-2.38%
Broome County193,639-3.43%
Ulster County179,417-1.65%
Rensselaer County159,7220.22%
Schenectady County155,5650.44%
Chautauqua County129,046-4.22%
Oswego County118,478-3.00%
Jefferson County114,187-2.07%
Ontario County109,8991.60%
St. Lawrence County109,623-1.97%
Tompkins County104,8022.99%
Putnam County99,323-0.35%
Steuben County96,281-2.76%
Wayne County90,670-3.29%
Chemung County85,557-3.85%
Clinton County80,980-1.36%
Cayuga County77,603-2.86%
Cattaraugus County77,348-3.59%
Sullivan County75,485-2.60%
Madison County70,965-3.37%
Warren County64,532-1.74%
Livingston County63,799-2.22%
Herkimer County62,240-3.45%
Washington County61,620-2.71%
Columbia County60,604-3.86%
Otsego County60,094-3.47%
Genesee County57,956-3.32%
Fulton County53,877-2.87%
Franklin County51,116-1.04%
Montgomery County49,258-2.07%
Tioga County48,578-4.77%
Chenango County47,863-5.03%
Cortland County47,786-3.03%
Greene County47,470-3.40%
Allegany County46,894-4.24%
Delaware County45,001-6.03%
Orleans County40,983-4.33%
Wyoming County40,493-3.89%
Essex County37,956-3.55%
Seneca County34,498-2.17%
Schoharie County31,420-3.92%
Lewis County26,551-1.89%
Yates County24,955-1.65%
Schuyler County18,000-1.76%
Hamilton County4,485-7.58%