RANKING · 2020 CENSUS · 62 SHOWN OF 62

Fastest shrinking, New York counties · 2020

New York counties with the steepest population decline from the 2010 census to 2020. 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

01Schoharie County, NYNY30,176-9.3%+966%

02Franklin County, NYNY46,500-7.8%−179%

03Delaware County, NYNY44,305-7.7%−535%

04Madison County, NYNY67,120-7.4%−1691%

05Herkimer County, NYNY59,219-6.8%+226%

06Chenango County, NYNY45,715-6.5%+810%

07Otsego County, NYNY60,589-6.0%−413%

08Orleans County, NYNY39,825-5.9%−207%

09Steuben County, NYNY91,855-5.5%+1395%

10Livingston County, NYNY61,438-5.4%−274%

11Chautauqua County, NYNY124,126-5.4%+255%

12Chemung County, NYNY80,415-5.3%+22%

13Tioga County, NYNY47,453-5.2%+394%

14Cortland County, NYNY45,850-5.1%+589%

15Allegany County, NYNY46,800-5.1%+373%

16Essex County, NYNY36,438-5.1%−210%

17Cayuga County, NYNY74,365-4.7%+1010%

18Cattaraugus County, NYNY75,390-4.1%+1131%

19Seneca County, NYNY32,883-4.1%+303%

20Fulton County, NYNY52,216-4.0%−344%

21Wyoming County, NYNY39,741-3.9%−279%

22Oswego County, NYNY118,569-3.8%−854%

23St. Lawrence County, NYNY105,488-3.1%+7900%

24Washington County, NYNY59,353-3.0%−205%

25Genesee County, NYNY58,416-2.8%−645%

26Clinton County, NYNY78,138-2.8%−61%

27Wayne County, NYNY91,250-2.7%−151%

28Greene County, NYNY47,238-2.6%−134%

29Schuyler County, NYNY16,924-2.4%−181%

30Columbia County, NYNY60,168-2.4%−1460%

31Yates County, NYNY24,547-2.3%−129%

32Putnam County, NYNY99,028-2.0%−115%

33Lewis County, NYNY26,479-1.9%−438%

34Niagara County, NYNY208,912-1.8%+326%

35Montgomery County, NYNY50,046-1.4%−69%

36Oneida County, NYNY226,392-1.2%−81%

37Broome County, NYNY195,736-1.0%−83%

38Dutchess County, NYNY300,708-0.5%−107%

39Ulster County, NYNY183,330-0.4%−105%

40Warren County, NYNY65,020+0.0%−99%

41Jefferson County, NYNY111,540+0.4%−41%

42Rensselaer County, NYNY160,510+1.1%−187%

43Sullivan County, NYNY80,586+1.4%−79%

44Monroe County, NYNY750,506+2.0%−32%

45Onondaga County, NYNY466,584+2.0%−190%

46Schenectady County, NYNY162,581+2.2%−218%

47Suffolk County, NYNY1,546,090+2.2%−70%

48Albany County, NYNY321,225+3.5%+419%

49Erie County, NYNY946,741+3.8%−303%

50Tompkins County, NYNY104,047+4.1%+61%

51Ontario County, NYNY113,130+4.2%−22%

52Nassau County, NYNY1,398,939+4.2%+15%

53Hamilton County, NYNY5,006+5.6%+196%

54Richmond County, NYNY501,290+5.8%−66%

55Westchester County, NYNY1,015,743+5.8%+5%

56Bronx County, NYNY1,406,332+6.3%−41%

57New York County, NYNY1,664,862+6.8%+105%

58Saratoga County, NYNY241,343+7.2%−32%

59Orange County, NYNY417,669+7.6%−30%

60Queens County, NYNY2,358,182+7.8%−45%

61Rockland County, NYNY357,397+8.5%+7%

62Kings County, NYNY2,653,963+9.2%+29%

SHOWING 1–62 OF 62

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU DECENNIAL CENSUS