RANKING · 2020 CENSUS · 62 SHOWN OF 62

Most sparsely populated, New York counties · 2020

New York counties with the fewest residents per square mile (2023). 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 Fastest shrinking Most densely populated Best broadband access Worst broadband access

YEAR1990 2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION DENSITYVS 2000

01Hamilton County, NYNY5,0063−5%

02Lewis County, NYNY26,47921−1%

03Essex County, NYNY36,43821−4%

04Franklin County, NYNY46,50029−7%

05Delaware County, NYNY44,30531−8%

06St. Lawrence County, NYNY105,48840−3%

07Herkimer County, NYNY59,21943−7%

08Allegany County, NYNY46,80045−7%

09Schoharie County, NYNY30,17648−6%

10Chenango County, NYNY45,71553−8%

11Schuyler County, NYNY16,92455−7%

12Otsego County, NYNY60,58958−5%

13Cattaraugus County, NYNY75,39059−8%

14Steuben County, NYNY91,85567−5%

15Wyoming County, NYNY39,74168−7%

16Yates County, NYNY24,54773+1%

17Washington County, NYNY59,35374+0%

18Greene County, NYNY47,23874−1%

19Warren County, NYNY65,02076+4%

20Clinton County, NYNY78,13877−0%

21Sullivan County, NYNY80,58681+6%

22Jefferson County, NYNY111,54092+4%

23Tioga County, NYNY47,45393−6%

24Cortland County, NYNY45,85094−4%

25Columbia County, NYNY60,16897−2%

26Livingston County, NYNY61,43898−4%

27Orleans County, NYNY39,825103−9%

28Madison County, NYNY67,120104−2%

29Seneca County, NYNY32,883104+1%

30Fulton County, NYNY52,216108−3%

31Cayuga County, NYNY74,365110−7%

32Genesee County, NYNY58,416118−3%

33Chautauqua County, NYNY124,126120−9%

34Montgomery County, NYNY50,046123−0%

35Oswego County, NYNY118,569124−4%

36Wayne County, NYNY91,250151−3%

37Ulster County, NYNY183,330162+2%

38Ontario County, NYNY113,130175+12%

39Oneida County, NYNY226,392191−1%

40Chemung County, NYNY80,415207−8%

41Tompkins County, NYNY104,047223+10%

42Rensselaer County, NYNY160,510247+6%

43Broome County, NYNY195,736282−1%

44Saratoga County, NYNY241,343291+17%

45Dutchess County, NYNY300,708372+6%

46Niagara County, NYNY208,912407−3%

47Putnam County, NYNY99,028424+2%

48Orange County, NYNY417,669494+18%

49Albany County, NYNY321,225602+7%

50Onondaga County, NYNY466,584612+4%

51Schenectady County, NYNY162,581772+8%

52Erie County, NYNY946,741915+0%

53Monroe County, NYNY750,5061,156+3%

54Suffolk County, NYNY1,546,0901,675+8%

55Rockland County, NYNY357,3971,948+18%

56Westchester County, NYNY1,015,7432,332+9%

57Nassau County, NYNY1,398,9394,905+5%

58Richmond County, NYNY501,2908,618+12%

59Queens County, NYNY2,358,18222,124+8%

60Bronx County, NYNY1,406,33234,917+11%

61Kings County, NYNY2,653,96339,438+11%

62New York County, NYNY1,664,86274,775+10%

SHOWING 1–62 OF 62

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