RANKING · 2010 CENSUS · 62 SHOWN OF 62

Fastest growing, New York counties · 2010

New York counties ranked by population growth from the 2000 census to 2010. 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

01Saratoga County, NYNY241,343+9.5%−11%

02Orange County, NYNY417,669+9.2%−16%

03Rockland County, NYNY357,397+8.7%+8%

04Ontario County, NYNY113,130+7.7%+43%

05Dutchess County, NYNY300,708+6.2%−22%

06Madison County, NYNY67,120+5.8%+1141%

07Seneca County, NYNY32,883+5.7%−666%

08Richmond County, NYNY501,290+5.6%−67%

09Schenectady County, NYNY162,581+5.6%−405%

10Tompkins County, NYNY104,047+5.2%+105%

11Suffolk County, NYNY1,546,090+5.2%−29%

12Sullivan County, NYNY80,586+4.8%−28%

13Rensselaer County, NYNY160,510+4.5%−469%

14Putnam County, NYNY99,028+4.1%−71%

15Jefferson County, NYNY111,540+4.0%+461%

16Bronx County, NYNY1,406,332+3.9%−63%

17Warren County, NYNY65,020+3.8%−45%

18Schoharie County, NYNY30,176+3.7%−525%

19Washington County, NYNY59,353+3.6%+23%

20Albany County, NYNY321,225+3.3%+386%

21New York County, NYNY1,664,862+3.2%−5%

22Yates County, NYNY24,547+3.0%−63%

23Clinton County, NYNY78,138+2.8%−140%

24Westchester County, NYNY1,015,743+2.8%−50%

25Ulster County, NYNY183,330+2.7%−65%

26Greene County, NYNY47,238+2.1%−72%

27Onondaga County, NYNY466,584+1.9%−184%

28Livingston County, NYNY61,438+1.7%−47%

29Kings County, NYNY2,653,963+1.6%−78%

30Cortland County, NYNY45,850+1.5%−304%

31Essex County, NYNY36,438+1.3%−71%

32Monroe County, NYNY750,506+1.2%−59%

33Montgomery County, NYNY50,046+1.0%−124%

34Otsego County, NYNY60,589+0.9%−51%

35Franklin County, NYNY46,500+0.9%−91%

36Fulton County, NYNY52,216+0.8%−49%

37Lewis County, NYNY26,479+0.5%−4%

38Nassau County, NYNY1,398,939+0.4%−90%

39Steuben County, NYNY91,855+0.3%−173%

40Herkimer County, NYNY59,219+0.1%−107%

41Queens County, NYNY2,358,182+0.1%−100%

42Broome County, NYNY195,736+0.0%−101%

43St. Lawrence County, NYNY105,488+0.0%−130%

44Wayne County, NYNY91,250+0.0%−100%

45Columbia County, NYNY60,168+0.0%−98%

46Delaware County, NYNY44,305-0.2%−109%

47Oswego County, NYNY118,569-0.2%−144%

48Oneida County, NYNY226,392-0.3%−96%

49Genesee County, NYNY58,416-0.5%−193%

50Tioga County, NYNY47,453-1.3%+20%

51Niagara County, NYNY208,912-1.5%+273%

52Chenango County, NYNY45,715-1.8%+154%

53Allegany County, NYNY46,800-2.0%+83%

54Cayuga County, NYNY74,365-2.4%+456%

55Chemung County, NYNY80,415-2.5%−43%

56Orleans County, NYNY39,825-2.9%−152%

57Wyoming County, NYNY39,741-2.9%−235%

58Erie County, NYNY946,741-3.3%+74%

59Chautauqua County, NYNY124,126-3.5%+129%

60Cattaraugus County, NYNY75,390-4.3%+1208%

61Schuyler County, NYNY16,924-4.6%−252%

62Hamilton County, NYNY5,006-10.1%−633%

SHOWING 1–62 OF 62

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