RANKING · 2024 ACS · 62 SHOWN OF 62

Youngest by median age, New York counties

New York counties with the youngest median age (2023 ACS). 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 ZIP codes

RELATEDOldest by median age Most foreign-born residents Highest uninsured rate Most women Most men Highest disability rate

YEAR1990 2000 2010 2020 2024

RANKPLACESTATEPOPMEDIAN AGEVS 2000

01Tompkins County, NYNY104,04732.3+13%

02Jefferson County, NYNY111,54033.7+4%

03Rockland County, NYNY357,39734.8−4%

04Bronx County, NYNY1,406,33236.0+15%

05Kings County, NYNY2,653,96336.5+10%

06Cortland County, NYNY45,85037.0+8%

07Orange County, NYNY417,66937.0+7%

08Albany County, NYNY321,22538.4+4%

09Allegany County, NYNY46,80038.7+11%

10New York County, NYNY1,664,86238.9+9%

11Broome County, NYNY195,73639.2+3%

12St. Lawrence County, NYNY105,48839.3+11%

13Monroe County, NYNY750,50639.6+10%

14Onondaga County, NYNY466,58439.6+9%

15Schenectady County, NYNY162,58139.6+3%

16Otsego County, NYNY60,58939.9+8%

17Rensselaer County, NYNY160,51040.1+9%

18Montgomery County, NYNY50,04640.3+2%

19Erie County, NYNY946,74140.4+6%

20Richmond County, NYNY501,29040.6+13%

21Oneida County, NYNY226,39240.7+7%

22Queens County, NYNY2,358,18240.7+15%

23Oswego County, NYNY118,56940.9+17%

24Livingston County, NYNY61,43841.5+18%

25Suffolk County, NYNY1,546,09041.7+14%

26Sullivan County, NYNY80,58641.7+7%

27Westchester County, NYNY1,015,74341.8+11%

28Clinton County, NYNY78,13841.9+17%

29Lewis County, NYNY26,47941.9+14%

30Chemung County, NYNY80,41542.0+11%

31Franklin County, NYNY46,50042.0+16%

32Nassau County, NYNY1,398,93942.0+9%

33Genesee County, NYNY58,41642.4+13%

34Madison County, NYNY67,12042.4+17%

35Dutchess County, NYNY300,70842.5+16%

36Yates County, NYNY24,54742.5+12%

37Cattaraugus County, NYNY75,39042.8+14%

38Chautauqua County, NYNY124,12642.9+13%

39Seneca County, NYNY32,88343.0+13%

40Steuben County, NYNY91,85543.0+13%

41Niagara County, NYNY208,91243.3+13%

42Wyoming County, NYNY39,74143.3+18%

43Orleans County, NYNY39,82543.5+20%

44Saratoga County, NYNY241,34343.6+18%

45Wayne County, NYNY91,25043.6+18%

46Cayuga County, NYNY74,36543.8+17%

47Putnam County, NYNY99,02844.0+18%

48Fulton County, NYNY52,21644.1+14%

49Ulster County, NYNY183,33044.1+15%

50Ontario County, NYNY113,13044.2+17%

51Tioga County, NYNY47,45344.8+18%

52Herkimer County, NYNY59,21944.8+15%

53Chenango County, NYNY45,71545.0+17%

54Washington County, NYNY59,35345.4+21%

55Schoharie County, NYNY30,17645.8+21%

56Warren County, NYNY65,02046.8+20%

57Greene County, NYNY47,23847.4+21%

58Schuyler County, NYNY16,92447.6+23%

59Delaware County, NYNY44,30548.8+18%

60Columbia County, NYNY60,16849.8+23%

61Essex County, NYNY36,43849.9+27%

62Hamilton County, NYNY5,00658.1+28%

SHOWING 1–62 OF 62

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