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%−8.5 pts

02Bronx County, NYNY1,406,332-4.5%−15.2 pts

03Jefferson County, NYNY111,540-4.4%−5.2 pts

04Chemung County, NYNY80,415-4.4%−0.1 pts

05Chenango County, NYNY45,715-3.2%−2.5 pts

06Washington County, NYNY59,353-3.2%−6.1 pts

07Kings County, NYNY2,653,963-3.0%−10.2 pts

08St. Lawrence County, NYNY105,488-2.8%−2.7 pts

09Chautauqua County, NYNY124,126-2.8%−1.3 pts

10Seneca County, NYNY32,883-2.8%−1.7 pts

11Essex County, NYNY36,438-2.5%−7.1 pts

12Oneida County, NYNY226,392-2.5%+3.7 pts

13Cayuga County, NYNY74,365-2.5%−2.0 pts

14Columbia County, NYNY60,168-2.3%−2.5 pts

15Franklin County, NYNY46,500-2.2%−12.1 pts

16Cattaraugus County, NYNY75,390-2.1%−1.8 pts

17Clinton County, NYNY78,138-2.1%+4.9 pts

18Onondaga County, NYNY466,584-2.1%+0.2 pts

19Fulton County, NYNY52,216-2.1%−3.7 pts

20Tioga County, NYNY47,453-2.1%−1.0 pts

21Cortland County, NYNY45,850-2.0%−1.3 pts

22Hamilton County, NYNY5,006-2.0%−3.9 pts

23Queens County, NYNY2,358,182-2.0%−16.2 pts

24Wyoming County, NYNY39,741-1.9%−4.1 pts

25Steuben County, NYNY91,855-1.8%−1.5 pts

26Niagara County, NYNY208,912-1.8%−1.4 pts

27New York County, NYNY1,664,862-1.7%−5.1 pts

28Tompkins County, NYNY104,047-1.6%−4.2 pts

29Herkimer County, NYNY59,219-1.5%+0.6 pts

30Broome County, NYNY195,736-1.5%+4.0 pts

31Greene County, NYNY47,238-1.4%−9.2 pts

32Madison County, NYNY67,120-1.3%−1.8 pts

33Orleans County, NYNY39,825-1.3%−6.8 pts

34Monroe County, NYNY750,506-1.2%−4.2 pts

35Warren County, NYNY65,020-1.1%−8.0 pts

36Yates County, NYNY24,547-0.9%−8.9 pts

37Erie County, NYNY946,741-0.8%+1.1 pts

38Livingston County, NYNY61,438-0.6%−3.8 pts

39Lewis County, NYNY26,479-0.4%−0.9 pts

40Rensselaer County, NYNY160,510-0.4%+0.8 pts

41Wayne County, NYNY91,250-0.0%−5.2 pts

42Delaware County, NYNY44,305-0.0%−1.8 pts

43Genesee County, NYNY58,416+0.0%−0.5 pts

44Nassau County, NYNY1,398,939+0.2%−3.4 pts

45Ontario County, NYNY113,130+0.6%−4.8 pts

46Allegany County, NYNY46,800+0.7%+1.8 pts

47Ulster County, NYNY183,330+0.8%−6.7 pts

48Oswego County, NYNY118,569+0.9%+0.4 pts

49Montgomery County, NYNY50,046+1.0%+5.4 pts

50Richmond County, NYNY501,290+1.1%−16.0 pts

51Westchester County, NYNY1,015,743+1.1%−4.4 pts

52Suffolk County, NYNY1,546,090+1.3%−6.1 pts

53Putnam County, NYNY99,028+1.4%−12.7 pts

54Schoharie County, NYNY30,176+1.6%+2.4 pts

55Dutchess County, NYNY300,708+1.6%−6.4 pts

56Albany County, NYNY321,225+2.0%+1.4 pts

57Saratoga County, NYNY241,343+2.5%−8.2 pts

58Sullivan County, NYNY80,586+2.5%−4.3 pts

59Schenectady County, NYNY162,581+2.9%+4.7 pts

60Otsego County, NYNY60,589+3.5%+1.6 pts

61Orange County, NYNY417,669+4.1%−6.9 pts

62Rockland County, NYNY357,397+5.6%−2.4 pts

SHOWING 1–62 OF 62

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UPDATED 2026-08-08 · DATA: US CENSUS BUREAU POPULATION ESTIMATES