RANKING · 2025 ESTIMATES · 62 SHOWN OF 62

Fastest growing, New York counties

New York counties ranked by population growth from the 2020 census to 2025. This list covers the 62 counties in New York that qualify, ranked against each other statewide.

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SAME RANKING BYCities States Metros

RELATEDLargest by population Fastest shrinking Most population gained Most population lost Most densely populated Most sparsely populated

YEAR2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION GROWTHVS 2000

01Rockland County, NYNY357,397+5.6%−30%

02Orange County, NYNY417,669+4.1%−63%

03Otsego County, NYNY60,589+3.5%+84%

04Schenectady County, NYNY162,581+2.9%−256%

05Sullivan County, NYNY80,586+2.5%−63%

06Saratoga County, NYNY241,343+2.5%−77%

07Albany County, NYNY321,225+2.0%+201%

08Dutchess County, NYNY300,708+1.6%−80%

09Schoharie County, NYNY30,176+1.6%−279%

10Putnam County, NYNY99,028+1.4%−90%

11Suffolk County, NYNY1,546,090+1.3%−82%

12Westchester County, NYNY1,015,743+1.1%−80%

13Richmond County, NYNY501,290+1.1%−93%

14Montgomery County, NYNY50,046+1.0%−124%

15Oswego County, NYNY118,569+0.9%+79%

16Ulster County, NYNY183,330+0.8%−89%

17Allegany County, NYNY46,800+0.7%−169%

18Ontario County, NYNY113,130+0.6%−89%

19Nassau County, NYNY1,398,939+0.2%−94%

20Genesee County, NYNY58,416+0.0%−91%

21Delaware County, NYNY44,305-0.0%−100%

22Wayne County, NYNY91,250-0.0%−101%

23Rensselaer County, NYNY160,510-0.4%−69%

24Lewis County, NYNY26,479-0.4%−170%

25Livingston County, NYNY61,438-0.6%−120%

26Erie County, NYNY946,741-0.8%−58%

27Yates County, NYNY24,547-0.9%−112%

28Warren County, NYNY65,020-1.1%−116%

29Monroe County, NYNY750,506-1.2%−139%

30Orleans County, NYNY39,825-1.3%−123%

31Madison County, NYNY67,120-1.3%−384%

32Greene County, NYNY47,238-1.4%−119%

33Broome County, NYNY195,736-1.5%−73%

34Herkimer County, NYNY59,219-1.5%−27%

35Tompkins County, NYNY104,047-1.6%−163%

36New York County, NYNY1,664,862-1.7%−152%

37Niagara County, NYNY208,912-1.8%+328%

38Steuben County, NYNY91,855-1.8%+406%

39Wyoming County, NYNY39,741-1.9%−190%

40Queens County, NYNY2,358,182-2.0%−114%

41Hamilton County, NYNY5,006-2.0%−204%

42Cortland County, NYNY45,850-2.0%+176%

43Tioga County, NYNY47,453-2.1%+96%

44Fulton County, NYNY52,216-2.1%−228%

45Onondaga County, NYNY466,584-2.1%−8%

46Clinton County, NYNY78,138-2.1%−70%

47Cattaraugus County, NYNY75,390-2.1%+547%

48Franklin County, NYNY46,500-2.2%−122%

49Columbia County, NYNY60,168-2.3%−1380%

50Cayuga County, NYNY74,365-2.5%+481%

51Oneida County, NYNY226,392-2.5%−60%

52Essex County, NYNY36,438-2.5%−155%

53Seneca County, NYNY32,883-2.8%+172%

54Chautauqua County, NYNY124,126-2.8%+83%

55St. Lawrence County, NYNY105,488-2.8%+7141%

56Kings County, NYNY2,653,963-3.0%−142%

57Washington County, NYNY59,353-3.2%−210%

58Chenango County, NYNY45,715-3.2%+350%

59Chemung County, NYNY80,415-4.4%+2%

60Jefferson County, NYNY111,540-4.4%−719%

61Bronx County, NYNY1,406,332-4.5%−142%

62Schuyler County, NYNY16,924-5.4%−281%

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU POPULATION ESTIMATES