RANKING · 1990 CENSUS · 62 SHOWN OF 62

Most densely populated, New York counties · 1990

New York counties ranked by 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 sparsely populated Best broadband access Worst broadband access

YEAR1990 2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION DENSITYVS 2000

01New York County, NYNY1,664,86265,652−3%

02Kings County, NYNY2,653,96333,162−7%

03Bronx County, NYNY1,406,33228,542−10%

04Queens County, NYNY2,358,18217,950−12%

05Richmond County, NYNY501,2906,588−15%

06Nassau County, NYNY1,398,9394,524−4%

07Westchester County, NYNY1,015,7432,031−5%

08Rockland County, NYNY357,3971,528−7%

09Suffolk County, NYNY1,546,0901,451−7%

10Monroe County, NYNY750,5061,087−3%

11Erie County, NYNY946,741929+2%

12Schenectady County, NYNY162,581729+2%

13Onondaga County, NYNY466,584602+2%

14Albany County, NYNY321,225560−1%

15Niagara County, NYNY208,912423+0%

16Orange County, NYNY417,669379−10%

17Putnam County, NYNY99,028365−12%

18Dutchess County, NYNY300,708326−7%

19Broome County, NYNY195,736301+6%

20Rensselaer County, NYNY160,510237+1%

21Chemung County, NYNY80,415234+5%

22Saratoga County, NYNY241,343224−10%

23Oneida County, NYNY226,392207+7%

24Tompkins County, NYNY104,047198−2%

25Ontario County, NYNY113,130148−5%

26Wayne County, NYNY91,250148−5%

27Ulster County, NYNY183,330147−7%

28Chautauqua County, NYNY124,126134+2%

29Montgomery County, NYNY50,046129+5%

30Oswego County, NYNY118,569128−0%

31Genesee County, NYNY58,416122−1%

32Cayuga County, NYNY74,365119+0%

33Fulton County, NYNY52,216109−2%

34Orleans County, NYNY39,825107−5%

35Madison County, NYNY67,120106−0%

36Seneca County, NYNY32,883104+1%

37Tioga County, NYNY47,453101+1%

38Columbia County, NYNY60,16899−0%

39Livingston County, NYNY61,43899−3%

40Cortland County, NYNY45,85098+1%

41Jefferson County, NYNY111,54087−1%

42Clinton County, NYNY78,13883+8%

43Wyoming County, NYNY39,74172−2%

44Sullivan County, NYNY80,58672−6%

45Washington County, NYNY59,35371−3%

46Steuben County, NYNY91,85571+0%

47Greene County, NYNY47,23869−7%

48Warren County, NYNY65,02068−6%

49Yates County, NYNY24,54767−7%

50Cattaraugus County, NYNY75,39064+0%

51Otsego County, NYNY60,58960−2%

52Chenango County, NYNY45,71558+1%

53Schuyler County, NYNY16,92457−3%

54Schoharie County, NYNY30,17651+1%

55Allegany County, NYNY46,80049+1%

56Herkimer County, NYNY59,21947+2%

57St. Lawrence County, NYNY105,48842+0%

58Delaware County, NYNY44,30533−2%

59Franklin County, NYNY46,50029−9%

60Lewis County, NYNY26,47921−1%

61Essex County, NYNY36,43821−4%

62Hamilton County, NYNY5,0063−2%

SHOWING 1–62 OF 62

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