RANKING · 2020 CENSUS · 62 SHOWN OF 62

Fastest growing, New York counties · 2020

New York counties ranked by population growth 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 shrinking Most population gained Most population lost Most densely populated Most sparsely populated

YEAR2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION GROWTHVS 2000

01Kings County, NYNY2,653,963+9.2%+2.1 pts

02Rockland County, NYNY357,397+8.5%+0.5 pts

03Queens County, NYNY2,358,182+7.8%−6.4 pts

04Orange County, NYNY417,669+7.6%−3.3 pts

05Saratoga County, NYNY241,343+7.2%−3.4 pts

06New York County, NYNY1,664,862+6.8%+3.5 pts

07Bronx County, NYNY1,406,332+6.3%−4.4 pts

08Westchester County, NYNY1,015,743+5.8%+0.3 pts

09Richmond County, NYNY501,290+5.8%−11.3 pts

10Hamilton County, NYNY5,006+5.6%+3.7 pts

11Nassau County, NYNY1,398,939+4.2%+0.5 pts

12Ontario County, NYNY113,130+4.2%−1.2 pts

13Tompkins County, NYNY104,047+4.1%+1.6 pts

14Erie County, NYNY946,741+3.8%+5.7 pts

15Albany County, NYNY321,225+3.5%+2.8 pts

16Suffolk County, NYNY1,546,090+2.2%−5.2 pts

17Schenectady County, NYNY162,581+2.2%+4.0 pts

18Onondaga County, NYNY466,584+2.0%+4.3 pts

19Monroe County, NYNY750,506+2.0%−1.0 pts

20Sullivan County, NYNY80,586+1.4%−5.4 pts

21Rensselaer County, NYNY160,510+1.1%+2.3 pts

22Jefferson County, NYNY111,540+0.4%−0.3 pts

23Warren County, NYNY65,020+0.0%−6.9 pts

24Ulster County, NYNY183,330-0.4%−7.9 pts

25Dutchess County, NYNY300,708-0.5%−8.5 pts

26Broome County, NYNY195,736-1.0%+4.5 pts

27Oneida County, NYNY226,392-1.2%+5.0 pts

28Montgomery County, NYNY50,046-1.4%+3.0 pts

29Niagara County, NYNY208,912-1.8%−1.3 pts

30Lewis County, NYNY26,479-1.9%−2.4 pts

31Putnam County, NYNY99,028-2.0%−16.1 pts

32Yates County, NYNY24,547-2.3%−10.2 pts

33Columbia County, NYNY60,168-2.4%−2.6 pts

34Schuyler County, NYNY16,924-2.4%−5.4 pts

35Greene County, NYNY47,238-2.6%−10.3 pts

36Wayne County, NYNY91,250-2.7%−7.9 pts

37Clinton County, NYNY78,138-2.8%+4.3 pts

38Genesee County, NYNY58,416-2.8%−3.3 pts

39Washington County, NYNY59,353-3.0%−5.9 pts

40St. Lawrence County, NYNY105,488-3.1%−3.0 pts

41Oswego County, NYNY118,569-3.8%−4.3 pts

42Wyoming County, NYNY39,741-3.9%−6.0 pts

43Fulton County, NYNY52,216-4.0%−5.6 pts

44Seneca County, NYNY32,883-4.1%−3.1 pts

45Cattaraugus County, NYNY75,390-4.1%−3.7 pts

46Cayuga County, NYNY74,365-4.7%−4.3 pts

47Essex County, NYNY36,438-5.1%−9.6 pts

48Allegany County, NYNY46,800-5.1%−4.0 pts

49Cortland County, NYNY45,850-5.1%−4.4 pts

50Tioga County, NYNY47,453-5.2%−4.2 pts

51Chemung County, NYNY80,415-5.3%−0.9 pts

52Chautauqua County, NYNY124,126-5.4%−3.9 pts

53Livingston County, NYNY61,438-5.4%−8.6 pts

54Steuben County, NYNY91,855-5.5%−5.1 pts

55Orleans County, NYNY39,825-5.9%−11.5 pts

56Otsego County, NYNY60,589-6.0%−7.9 pts

57Chenango County, NYNY45,715-6.5%−5.7 pts

58Herkimer County, NYNY59,219-6.8%−4.7 pts

59Madison County, NYNY67,120-7.4%−7.9 pts

60Delaware County, NYNY44,305-7.7%−9.4 pts

61Franklin County, NYNY46,500-7.8%−17.7 pts

62Schoharie County, NYNY30,176-9.3%−8.4 pts

SHOWING 1–62 OF 62

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UPDATED 2026-08-08 · DATA: US CENSUS BUREAU DECENNIAL CENSUS