RANKING · 2024 ACS · 62 SHOWN OF 62

Youngest by median age, New York counties

New York counties with the youngest median age (2024 ACS). This list covers the 62 counties in New York that qualify, ranked against each other statewide. The median across all 62 is 42.0. Biggest climber in the top 100 since 2020: Otsego County, NY, up 17 places to #16.

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SAME RANKING BYCities States Metros ZIP codes

RELATEDLargest foreign-born population Most residents with a disability Largest veteran population Most uninsured people Largest senior population Most unmarried people

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%

04▲1Bronx County, NYNY1,406,33236.0+15%

05▼1Kings County, NYNY2,653,96336.5+10%

06▲4Cortland County, NYNY45,85037.0+8%

07Orange County, NYNY417,66937.0+7%

08▲1Albany County, NYNY321,22538.4+4%

09▲3Allegany County, NYNY46,80038.7+11%

10▼4New York County, NYNY1,664,86238.9+9%

11▲5Broome County, NYNY195,73639.2+3%

12▼4St. Lawrence County, NYNY105,48839.3+11%

13▲2Monroe County, NYNY750,50639.6+10%

14▼1Onondaga County, NYNY466,58439.6+9%

15▲3Schenectady County, NYNY162,58139.6+3%

16▲17Otsego County, NYNY60,58939.9+8%

17▼3Rensselaer County, NYNY160,51040.1+9%

18▲6Montgomery County, NYNY50,04640.3+2%

19▼2Erie County, NYNY946,74140.4+6%

20▼1Richmond County, NYNY501,29040.6+13%

21Oneida County, NYNY226,39240.7+7%

22▼11Queens County, NYNY2,358,18240.7+15%

23▼3Oswego County, NYNY118,56940.9+17%

24▲8Livingston County, NYNY61,43841.5+18%

25▲5Suffolk County, NYNY1,546,09041.7+14%

26▲2Sullivan County, NYNY80,58641.7+7%

27▼4Westchester County, NYNY1,015,74341.8+11%

28▼3Clinton County, NYNY78,13841.9+17%

29▲7Lewis County, NYNY26,47941.9+14%

30▲1Chemung County, NYNY80,41542.0+11%

31▼4Franklin County, NYNY46,50042.0+16%

32▼3Nassau County, NYNY1,398,93942.0+9%

33▲10Genesee County, NYNY58,41642.4+13%

34▼8Madison County, NYNY67,12042.4+17%

35▲2Dutchess County, NYNY300,70842.5+16%

36▼14Yates County, NYNY24,54742.5+12%

37▼2Cattaraugus County, NYNY75,39042.8+14%

38Chautauqua County, NYNY124,12642.9+13%

39▼5Seneca County, NYNY32,88343.0+13%

40▲1Steuben County, NYNY91,85543.0+13%

41▲4Niagara County, NYNY208,91243.3+13%

42▼2Wyoming County, NYNY39,74143.3+18%

43▼4Orleans County, NYNY39,82543.5+20%

44▼2Saratoga County, NYNY241,34343.6+18%

45▲1Wayne County, NYNY91,25043.6+18%

46▼2Cayuga County, NYNY74,36543.8+17%

47▲3Putnam County, NYNY99,02844.0+18%

48▲5Fulton County, NYNY52,21644.1+14%

49▲3Ulster County, NYNY183,33044.1+15%

50▼3Ontario County, NYNY113,13044.2+17%

51▼3Tioga County, NYNY47,45344.8+18%

52▼3Herkimer County, NYNY59,21944.8+15%

53▲1Chenango County, NYNY45,71545.0+17%

54▼3Washington County, NYNY59,35345.4+21%

55Schoharie County, NYNY30,17645.8+21%

56▲3Warren County, NYNY65,02046.8+20%

57▼1Greene County, NYNY47,23847.4+21%

58▼1Schuyler County, NYNY16,92447.6+23%

59▲1Delaware County, NYNY44,30548.8+18%

60▲1Columbia County, NYNY60,16849.8+23%

61▼3Essex County, NYNY36,43849.9+27%

62Hamilton County, NYNY5,00658.1+28%

SHOWING 1–62 OF 62

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES