RANKING · 2020 CENSUS · 62 SHOWN OF 62

Most densely populated, New York counties · 2020

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, NYNY1,664,86274,775+10%

02Kings County, NYNY2,653,96339,438+11%

03Bronx County, NYNY1,406,33234,917+11%

04Queens County, NYNY2,358,18222,124+8%

05Richmond County, NYNY501,2908,618+12%

06Nassau County, NYNY1,398,9394,905+5%

07Westchester County, NYNY1,015,7432,332+9%

08Rockland County, NYNY357,3971,948+18%

09Suffolk County, NYNY1,546,0901,675+8%

10Monroe County, NYNY750,5061,156+3%

11Erie County, NYNY946,741915+0%

12Schenectady County, NYNY162,581772+8%

13Onondaga County, NYNY466,584612+4%

14Albany County, NYNY321,225602+7%

15Orange County, NYNY417,669494+18%

16Putnam County, NYNY99,028424+2%

17Niagara County, NYNY208,912407−3%

18Dutchess County, NYNY300,708372+6%

19Saratoga County, NYNY241,343291+17%

20Broome County, NYNY195,736282−1%

21Rensselaer County, NYNY160,510247+6%

22Tompkins County, NYNY104,047223+10%

23Chemung County, NYNY80,415207−8%

24Oneida County, NYNY226,392191−1%

25Ontario County, NYNY113,130175+12%

26Ulster County, NYNY183,330162+2%

27Wayne County, NYNY91,250151−3%

28Oswego County, NYNY118,569124−4%

29Montgomery County, NYNY50,046123−0%

30Chautauqua County, NYNY124,126120−9%

31Genesee County, NYNY58,416118−3%

32Cayuga County, NYNY74,365110−7%

33Fulton County, NYNY52,216108−3%

34Seneca County, NYNY32,883104+1%

35Madison County, NYNY67,120104−2%

36Orleans County, NYNY39,825103−9%

37Livingston County, NYNY61,43898−4%

38Columbia County, NYNY60,16897−2%

39Cortland County, NYNY45,85094−4%

40Tioga County, NYNY47,45393−6%

41Jefferson County, NYNY111,54092+4%

42Sullivan County, NYNY80,58681+6%

43Clinton County, NYNY78,13877−0%

44Warren County, NYNY65,02076+4%

45Greene County, NYNY47,23874−1%

46Washington County, NYNY59,35374+0%

47Yates County, NYNY24,54773+1%

48Wyoming County, NYNY39,74168−7%

49Steuben County, NYNY91,85567−5%

50Cattaraugus County, NYNY75,39059−8%

51Otsego County, NYNY60,58958−5%

52Schuyler County, NYNY16,92455−7%

53Chenango County, NYNY45,71553−8%

54Schoharie County, NYNY30,17648−6%

55Allegany County, NYNY46,80045−7%

56Herkimer County, NYNY59,21943−7%

57St. Lawrence County, NYNY105,48840−3%

58Delaware County, NYNY44,30531−8%

59Franklin County, NYNY46,50029−7%

60Essex County, NYNY36,43821−4%

61Lewis County, NYNY26,47921−1%

62Hamilton County, NYNY5,0063−5%

SHOWING 1–62 OF 62

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