RANKING · 2025 ESTIMATES · 62 SHOWN OF 62

Fastest shrinking, New York counties

New York counties with the steepest population decline 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 growing Most population gained Most population lost Most densely populated Most sparsely populated

YEAR2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION GROWTHVS 2000

01Schuyler County, NYNY16,924-5.4%−281%

02Bronx County, NYNY1,406,332-4.5%−142%

03Jefferson County, NYNY111,540-4.4%−719%

04Chemung County, NYNY80,415-4.4%+2%

05Chenango County, NYNY45,715-3.2%+350%

06Washington County, NYNY59,353-3.2%−210%

07Kings County, NYNY2,653,963-3.0%−142%

08St. Lawrence County, NYNY105,488-2.8%+7141%

09Chautauqua County, NYNY124,126-2.8%+83%

10Seneca County, NYNY32,883-2.8%+172%

11Essex County, NYNY36,438-2.5%−155%

12Oneida County, NYNY226,392-2.5%−60%

13Cayuga County, NYNY74,365-2.5%+481%

14Columbia County, NYNY60,168-2.3%−1380%

15Franklin County, NYNY46,500-2.2%−122%

16Cattaraugus County, NYNY75,390-2.1%+547%

17Clinton County, NYNY78,138-2.1%−70%

18Onondaga County, NYNY466,584-2.1%−8%

19Fulton County, NYNY52,216-2.1%−228%

20Tioga County, NYNY47,453-2.1%+96%

21Cortland County, NYNY45,850-2.0%+176%

22Hamilton County, NYNY5,006-2.0%−204%

23Queens County, NYNY2,358,182-2.0%−114%

24Wyoming County, NYNY39,741-1.9%−190%

25Steuben County, NYNY91,855-1.8%+406%

26Niagara County, NYNY208,912-1.8%+328%

27New York County, NYNY1,664,862-1.7%−152%

28Tompkins County, NYNY104,047-1.6%−163%

29Herkimer County, NYNY59,219-1.5%−27%

30Broome County, NYNY195,736-1.5%−73%

31Greene County, NYNY47,238-1.4%−119%

32Madison County, NYNY67,120-1.3%−384%

33Orleans County, NYNY39,825-1.3%−123%

34Monroe County, NYNY750,506-1.2%−139%

35Warren County, NYNY65,020-1.1%−116%

36Yates County, NYNY24,547-0.9%−112%

37Erie County, NYNY946,741-0.8%−58%

38Livingston County, NYNY61,438-0.6%−120%

39Lewis County, NYNY26,479-0.4%−170%

40Rensselaer County, NYNY160,510-0.4%−69%

41Wayne County, NYNY91,250-0.0%−101%

42Delaware County, NYNY44,305-0.0%−100%

43Genesee County, NYNY58,416+0.0%−91%

44Nassau County, NYNY1,398,939+0.2%−94%

45Ontario County, NYNY113,130+0.6%−89%

46Allegany County, NYNY46,800+0.7%−169%

47Ulster County, NYNY183,330+0.8%−89%

48Oswego County, NYNY118,569+0.9%+79%

49Montgomery County, NYNY50,046+1.0%−124%

50Richmond County, NYNY501,290+1.1%−93%

51Westchester County, NYNY1,015,743+1.1%−80%

52Suffolk County, NYNY1,546,090+1.3%−82%

53Putnam County, NYNY99,028+1.4%−90%

54Schoharie County, NYNY30,176+1.6%−279%

55Dutchess County, NYNY300,708+1.6%−80%

56Albany County, NYNY321,225+2.0%+201%

57Saratoga County, NYNY241,343+2.5%−77%

58Sullivan County, NYNY80,586+2.5%−63%

59Schenectady County, NYNY162,581+2.9%−256%

60Otsego County, NYNY60,589+3.5%+84%

61Orange County, NYNY417,669+4.1%−63%

62Rockland County, NYNY357,397+5.6%−30%

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