RANKING · 2010 CENSUS · 62 SHOWN OF 62

Youngest by median age, New York counties · 2010

New York counties with the youngest median age (2010 ACS). This list covers the 62 counties in New York that qualify, ranked against each other statewide. The median across all 62 is 40.8.

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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, NYNY104,04729.8+4%

02Jefferson County, NYNY111,54032.60%

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 2026-09-11 · DATA: US CENSUS BUREAU DECENNIAL CENSUS