Fastest Growing Counties in New York (2025)

County
Rank
Change (2020)
2025 Pop.
2020 Pop.
Sullivan County12.34%80,29078,453
Tompkins County22.31%102,07699,772
Orange County32.11%409,428400,986
Otsego County42.03%59,56058,373
Saratoga County51.44%239,197235,793
Albany County61.31%318,135314,018
Rockland County71.29%341,707337,367
Schoharie County81.28%30,13329,753
Schenectady County90.65%160,318159,289
Ulster County100.6%182,359181,271
Oswego County110.49%118,008117,429
Ontario County120.14%112,520112,363
Dutchess County130.11%296,232295,901
Putnam County14-0.08%97,55697,635
Montgomery County15-0.09%49,43849,485
Lewis County16-0.4%26,45426,560
Warren County17-0.49%65,28665,609
Suffolk County18-0.56%1,513,5621,522,064
Wayne County19-0.69%90,57191,202
Genesee County20-0.88%57,79158,302
Richmond County21-1.06%489,345494,598
Rensselaer County22-1.12%159,073160,871
Erie County23-1.13%941,595952,342
Nassau County24-1.15%1,374,5571,390,491
Delaware County25-1.24%43,68244,231
Westchester County26-1.25%988,9791,001,453
Yates County27-1.25%24,41224,722
Herkimer County28-1.25%59,28460,037
Essex County29-1.28%36,79937,275
Livingston County30-1.29%60,79461,590
Hamilton County31-1.48%5,0045,079
Tioga County32-1.52%47,61348,348
St. Lawrence County33-1.56%106,642108,329
Franklin County34-1.59%46,72047,477
Fulton County35-1.71%52,19053,100
Allegany County36-1.75%46,50147,328
Clinton County37-1.79%78,27179,699
Monroe County38-1.83%743,672757,551
Madison County39-1.88%66,65567,935
Steuben County40-1.96%91,47693,309
Onondaga County41-2.11%464,163474,192
Wyoming County42-2.15%39,39440,259
Niagara County43-2.21%207,437212,126
Oneida County44-2.22%225,949231,082
Broome County45-2.24%193,715198,156
Jefferson County46-2.27%113,439116,069
Greene County47-2.63%46,49647,752
Chautauqua County48-2.66%123,985127,376
Cayuga County49-2.69%74,09776,147
Orleans County50-2.71%39,04640,135
Cattaraugus County51-2.95%74,70076,974
Schuyler County52-3.14%17,30317,864
Cortland County53-3.52%45,09446,741
Chemung County54-3.56%80,69383,668
Columbia County55-3.61%59,19461,414
Chenango County56-4.18%45,09847,064
Washington County57-4.21%58,52161,091
New York County58-4.41%1,603,2671,677,232
Seneca County59-4.9%31,87533,516
Kings County60-7.87%2,504,6132,718,447
Queens County61-7.93%2,199,4722,388,864
Bronx County62-10.63%1,305,8121,461,151

New York Counties Growth Overview

New York's counties show varied growth patterns from 2020 to 2025. Sullivan County leads with 2.34% annualized growth, followed by Tompkins County (2.31%) and Orange County (2.11%). The largest counties are Kings County (2,504,613), Queens County (2,199,472), and New York County (1,603,267). Of the 62 counties in New York, 13 are growing while 49 have experienced population decline. Overall, counties averaged -1.63% annualized growth, with total population growing by -3.67% annually.