RANKING · 2010 CENSUS · 62 SHOWN OF 62

Youngest by median age, New York counties · 2010

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, NYNY104,04729.8+4%

02Jefferson County, NYNY111,54032.6+0%

03Bronx County, NYNY1,406,33232.8+5%

04Kings County, NYNY2,653,96334.1+3%

05Cortland County, NYNY45,85035.8+5%

06New York County, NYNY1,664,86236.4+2%

07Orange County, NYNY417,66936.6+5%

08Rockland County, NYNY357,39736.7+1%

09Queens County, NYNY2,358,18237.2+5%

10St. Lawrence County, NYNY105,48837.5+6%

11Allegany County, NYNY46,80037.8+8%

12Richmond County, NYNY501,29038.4+7%

13Albany County, NYNY321,22538.5+5%

14Monroe County, NYNY750,50638.5+7%

15Oswego County, NYNY118,56938.5+10%

16Onondaga County, NYNY466,58438.6+6%

17Clinton County, NYNY78,13839.1+10%

18Rensselaer County, NYNY160,51039.2+7%

19Franklin County, NYNY46,50039.3+8%

20Madison County, NYNY67,12039.5+9%

21Livingston County, NYNY61,43839.8+13%

22Schenectady County, NYNY162,58139.8+3%

23Suffolk County, NYNY1,546,09039.8+9%

24Westchester County, NYNY1,015,74340.0+6%

25Broome County, NYNY195,73640.2+5%

26Dutchess County, NYNY300,70840.2+10%

27Lewis County, NYNY26,47940.2+9%

28Erie County, NYNY946,74140.4+6%

29Cattaraugus County, NYNY75,39040.7+9%

30Yates County, NYNY24,54740.7+7%

31Montgomery County, NYNY50,04640.8+3%

32Oneida County, NYNY226,39240.8+7%

33Chemung County, NYNY80,41540.9+8%

34Chautauqua County, NYNY124,12640.9+8%

35Otsego County, NYNY60,58940.9+10%

36Saratoga County, NYNY241,34340.9+11%

37Wyoming County, NYNY39,74140.9+11%

38Orleans County, NYNY39,82541.0+13%

39Seneca County, NYNY32,88341.0+7%

40Nassau County, NYNY1,398,93941.1+7%

41Steuben County, NYNY91,85541.4+8%

42Cayuga County, NYNY74,36541.5+11%

43Genesee County, NYNY58,41641.5+11%

44Wayne County, NYNY91,25041.6+13%

45Sullivan County, NYNY80,58641.7+7%

46Washington County, NYNY59,35341.7+11%

47Fulton County, NYNY52,21641.8+8%

48Niagara County, NYNY208,91241.9+10%

49Putnam County, NYNY99,02841.9+12%

50Ulster County, NYNY183,33042.0+10%

51Ontario County, NYNY113,13042.1+11%

52Herkimer County, NYNY59,21942.1+8%

53Schoharie County, NYNY30,17642.5+12%

54Tioga County, NYNY47,45342.5+12%

55Chenango County, NYNY45,71542.9+12%

56Greene County, NYNY47,23844.0+13%

57Warren County, NYNY65,02044.1+13%

58Schuyler County, NYNY16,92444.2+14%

59Essex County, NYNY36,43844.5+13%

60Columbia County, NYNY60,16845.3+12%

61Delaware County, NYNY44,30545.4+10%

62Hamilton County, NYNY5,00651.3+13%

SHOWING 1–62 OF 62

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