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.

Flip the list · Fastest growing, US counties →

New YorkAll states All rankings

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%−8.4 pts

02Franklin County, NYNY46,500-7.8%−17.7 pts

03Delaware County, NYNY44,305-7.7%−9.4 pts

04Madison County, NYNY67,120-7.4%−7.9 pts

05Herkimer County, NYNY59,219-6.8%−4.7 pts

06Chenango County, NYNY45,715-6.5%−5.7 pts

07Otsego County, NYNY60,589-6.0%−7.9 pts

08Orleans County, NYNY39,825-5.9%−11.5 pts

09Steuben County, NYNY91,855-5.5%−5.1 pts

10Livingston County, NYNY61,438-5.4%−8.6 pts

11Chautauqua County, NYNY124,126-5.4%−3.9 pts

12Chemung County, NYNY80,415-5.3%−0.9 pts

13Tioga County, NYNY47,453-5.2%−4.2 pts

14Cortland County, NYNY45,850-5.1%−4.4 pts

15Allegany County, NYNY46,800-5.1%−4.0 pts

16Essex County, NYNY36,438-5.1%−9.6 pts

17Cayuga County, NYNY74,365-4.7%−4.3 pts

18Cattaraugus County, NYNY75,390-4.1%−3.7 pts

19Seneca County, NYNY32,883-4.1%−3.1 pts

20Fulton County, NYNY52,216-4.0%−5.6 pts

21Wyoming County, NYNY39,741-3.9%−6.0 pts

22Oswego County, NYNY118,569-3.8%−4.3 pts

23St. Lawrence County, NYNY105,488-3.1%−3.0 pts

24Washington County, NYNY59,353-3.0%−5.9 pts

25Genesee County, NYNY58,416-2.8%−3.3 pts

26Clinton County, NYNY78,138-2.8%+4.3 pts

27Wayne County, NYNY91,250-2.7%−7.9 pts

28Greene County, NYNY47,238-2.6%−10.3 pts

29Schuyler County, NYNY16,924-2.4%−5.4 pts

30Columbia County, NYNY60,168-2.4%−2.6 pts

31Yates County, NYNY24,547-2.3%−10.2 pts

32Putnam County, NYNY99,028-2.0%−16.1 pts

33Lewis County, NYNY26,479-1.9%−2.4 pts

34Niagara County, NYNY208,912-1.8%−1.3 pts

35Montgomery County, NYNY50,046-1.4%+3.0 pts

36Oneida County, NYNY226,392-1.2%+5.0 pts

37Broome County, NYNY195,736-1.0%+4.5 pts

38Dutchess County, NYNY300,708-0.5%−8.5 pts

39Ulster County, NYNY183,330-0.4%−7.9 pts

40Warren County, NYNY65,020+0.0%−6.9 pts

41Jefferson County, NYNY111,540+0.4%−0.3 pts

42Rensselaer County, NYNY160,510+1.1%+2.3 pts

43Sullivan County, NYNY80,586+1.4%−5.4 pts

44Monroe County, NYNY750,506+2.0%−1.0 pts

45Onondaga County, NYNY466,584+2.0%+4.3 pts

46Schenectady County, NYNY162,581+2.2%+4.0 pts

47Suffolk County, NYNY1,546,090+2.2%−5.2 pts

48Albany County, NYNY321,225+3.5%+2.8 pts

49Erie County, NYNY946,741+3.8%+5.7 pts

50Tompkins County, NYNY104,047+4.1%+1.6 pts

51Ontario County, NYNY113,130+4.2%−1.2 pts

52Nassau County, NYNY1,398,939+4.2%+0.5 pts

53Hamilton County, NYNY5,006+5.6%+3.7 pts

54Richmond County, NYNY501,290+5.8%−11.3 pts

55Westchester County, NYNY1,015,743+5.8%+0.3 pts

56Bronx County, NYNY1,406,332+6.3%−4.4 pts

57New York County, NYNY1,664,862+6.8%+3.5 pts

58Saratoga County, NYNY241,343+7.2%−3.4 pts

59Orange County, NYNY417,669+7.6%−3.3 pts

60Queens County, NYNY2,358,182+7.8%−6.4 pts

61Rockland County, NYNY357,397+8.5%+0.5 pts

62Kings County, NYNY2,653,963+9.2%+2.1 pts

SHOWING 1–62 OF 62

Download CSV (full list, 62 rows)

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