RANKING · 2010 CENSUS · 62 SHOWN OF 62

Fastest shrinking, New York counties · 2010

New York counties with the steepest population decline since the prior decennial census. This list covers the 62 counties in New York that qualify, ranked against each other statewide.

Flip the list · Fastest growing, US counties →

New YorkAll states All rankings

SAME RANKING BYCities States Metros

RELATEDLargest by population Fastest growing Most densely populated Most sparsely populated Best broadband access Worst broadband access

YEAR2000 2010 2020

RANKPLACESTATEPOPPOPULATION GROWTHVS 2000

01Hamilton County, NYNY5,006-10.1%−633%

02Schuyler County, NYNY16,924-4.6%−252%

03Cattaraugus County, NYNY75,390-4.3%+1208%

04Chautauqua County, NYNY124,126-3.5%+129%

05Erie County, NYNY946,741-3.3%+74%

06Wyoming County, NYNY39,741-2.9%−235%

07Orleans County, NYNY39,825-2.9%−152%

08Chemung County, NYNY80,415-2.5%−43%

09Cayuga County, NYNY74,365-2.4%+456%

10Allegany County, NYNY46,800-2.0%+83%

11Chenango County, NYNY45,715-1.8%+154%

12Niagara County, NYNY208,912-1.5%+273%

13Tioga County, NYNY47,453-1.3%+20%

14Genesee County, NYNY58,416-0.5%−193%

15Oneida County, NYNY226,392-0.3%−96%

16Oswego County, NYNY118,569-0.2%−144%

17Delaware County, NYNY44,305-0.2%−109%

18Columbia County, NYNY60,168+0.0%−98%

19Wayne County, NYNY91,250+0.0%−100%

20St. Lawrence County, NYNY105,488+0.0%−130%

21Broome County, NYNY195,736+0.0%−101%

22Queens County, NYNY2,358,182+0.1%−100%

23Herkimer County, NYNY59,219+0.1%−107%

24Steuben County, NYNY91,855+0.3%−173%

25Nassau County, NYNY1,398,939+0.4%−90%

26Lewis County, NYNY26,479+0.5%−4%

27Fulton County, NYNY52,216+0.8%−49%

28Franklin County, NYNY46,500+0.9%−91%

29Otsego County, NYNY60,589+0.9%−51%

30Montgomery County, NYNY50,046+1.0%−124%

31Monroe County, NYNY750,506+1.2%−59%

32Essex County, NYNY36,438+1.3%−71%

33Cortland County, NYNY45,850+1.5%−304%

34Kings County, NYNY2,653,963+1.6%−78%

35Livingston County, NYNY61,438+1.7%−47%

36Onondaga County, NYNY466,584+1.9%−184%

37Greene County, NYNY47,238+2.1%−72%

38Ulster County, NYNY183,330+2.7%−65%

39Westchester County, NYNY1,015,743+2.8%−50%

40Clinton County, NYNY78,138+2.8%−140%

41Yates County, NYNY24,547+3.0%−63%

42New York County, NYNY1,664,862+3.2%−5%

43Albany County, NYNY321,225+3.3%+386%

44Washington County, NYNY59,353+3.6%+23%

45Schoharie County, NYNY30,176+3.7%−525%

46Warren County, NYNY65,020+3.8%−45%

47Bronx County, NYNY1,406,332+3.9%−63%

48Jefferson County, NYNY111,540+4.0%+461%

49Putnam County, NYNY99,028+4.1%−71%

50Rensselaer County, NYNY160,510+4.5%−469%

51Sullivan County, NYNY80,586+4.8%−28%

52Suffolk County, NYNY1,546,090+5.2%−29%

53Tompkins County, NYNY104,047+5.2%+105%

54Schenectady County, NYNY162,581+5.6%−405%

55Richmond County, NYNY501,290+5.6%−67%

56Seneca County, NYNY32,883+5.7%−666%

57Madison County, NYNY67,120+5.8%+1141%

58Dutchess County, NYNY300,708+6.2%−22%

59Ontario County, NYNY113,130+7.7%+43%

60Rockland County, NYNY357,397+8.7%+8%

61Orange County, NYNY417,669+9.2%−16%

62Saratoga County, NYNY241,343+9.5%−11%

SHOWING 1–62 OF 62

Download CSV (full list, 62 rows)

UPDATED 2026-06-02 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES