RANKING · 2025 ESTIMATES · 62 SHOWN OF 62

Most densely populated, New York counties

New York counties ranked by residents per square mile (2025). This list covers the 62 counties in New York that qualify, ranked against each other statewide. The median across all 62 is 117.

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SAME RANKING BYCities States Metros

YEAR1990 2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION DENSITYVS 2000

01New York County, NYNY1,664,86273,478+8%

02Kings County, NYNY2,653,96338,254+8%

03Bronx County, NYNY1,406,33233,344+6%

04Queens County, NYNY2,358,18221,690+6%

05Richmond County, NYNY501,2908,715+13%

06Nassau County, NYNY1,398,9394,916+5%

07Westchester County, NYNY1,015,7432,358+10%

08Rockland County, NYNY357,3972,058+25%

09Suffolk County, NYNY1,546,0901,697+9%

10Monroe County, NYNY750,5061,142+2%

11Erie County, NYNY946,7419080%

12Schenectady County, NYNY162,581794+11%

13▲1Albany County, NYNY321,225614+9%

14▼1Onondaga County, NYNY466,584599+2%

15Orange County, NYNY417,669514+22%

16Putnam County, NYNY99,028430+3%

17Niagara County, NYNY208,912400−5%

18Dutchess County, NYNY300,708378+7%

19Saratoga County, NYNY241,343298+20%

20Broome County, NYNY195,736277−2%

21Rensselaer County, NYNY160,510246+5%

22Tompkins County, NYNY104,047219+8%

23Chemung County, NYNY80,415197−12%

24Oneida County, NYNY226,392187−4%

25Ontario County, NYNY113,130176+13%

26Ulster County, NYNY183,330163+3%

27Wayne County, NYNY91,250151−3%

28Oswego County, NYNY118,569125−3%

29Montgomery County, NYNY50,046124+1%

30▲1Genesee County, NYNY58,416118−3%

31▼1Chautauqua County, NYNY124,126117−11%

32Cayuga County, NYNY74,365108−9%

33Fulton County, NYNY52,216105−5%

34▲1Madison County, NYNY67,120102−3%

35▲1Orleans County, NYNY39,825102−10%

36▼2Seneca County, NYNY32,883102−1%

37Livingston County, NYNY61,43897−4%

38Columbia County, NYNY60,16895−5%

39Cortland County, NYNY45,85092−6%

40Tioga County, NYNY47,45391−8%

41Jefferson County, NYNY111,540880%

42Sullivan County, NYNY80,58683+9%

43Clinton County, NYNY78,13875−2%

44Warren County, NYNY65,02075+3%

45Greene County, NYNY47,23873−2%

46▲1Yates County, NYNY24,547730%

47▼1Washington County, NYNY59,35371−3%

48Wyoming County, NYNY39,74167−8%

49Steuben County, NYNY91,85566−7%

50▲1Otsego County, NYNY60,58960−2%

51▼1Cattaraugus County, NYNY75,39058−10%

52Schuyler County, NYNY16,92452−12%

53Chenango County, NYNY45,71551−11%

54Schoharie County, NYNY30,17649−4%

55Allegany County, NYNY46,80045−6%

56Herkimer County, NYNY59,21942−8%

57St. Lawrence County, NYNY105,48839−6%

58Delaware County, NYNY44,30531−8%

59Franklin County, NYNY46,50029−9%

60▲1Lewis County, NYNY26,47921−2%

61▼1Essex County, NYNY36,43820−6%

62Hamilton County, NYNY5,0063−7%

SHOWING 1–62 OF 62

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU POPULATION ESTIMATES