RANKING · 1990 CENSUS · 62 SHOWN OF 62

Youngest by median age, New York counties · 1990

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, NYNY104,04727.3−5%

02Jefferson County, NYNY111,54029.3−10%

03Clinton County, NYNY78,13830.0−16%

04Cortland County, NYNY45,85030.4−11%

05Oswego County, NYNY118,56930.6−13%

06St. Lawrence County, NYNY105,48830.7−13%

07Bronx County, NYNY1,406,33231.1−0%

08Allegany County, NYNY46,80031.3−11%

09Livingston County, NYNY61,43831.4−11%

10Madison County, NYNY67,12031.4−13%

11Lewis County, NYNY26,47931.4−15%

12Orange County, NYNY417,66932.0−8%

13Wyoming County, NYNY39,74132.4−12%

14Orleans County, NYNY39,82532.6−10%

15Kings County, NYNY2,653,96332.6−2%

16Franklin County, NYNY46,50032.7−10%

17Onondaga County, NYNY466,58432.8−10%

18Saratoga County, NYNY241,34332.8−11%

19Wayne County, NYNY91,25032.8−11%

20Rensselaer County, NYNY160,51033.0−10%

21Monroe County, NYNY750,50633.0−9%

22Tioga County, NYNY47,45333.1−13%

23Washington County, NYNY59,35333.1−12%

24Cayuga County, NYNY74,36533.2−11%

25Cattaraugus County, NYNY75,39033.2−11%

26Otsego County, NYNY60,58933.3−10%

27Genesee County, NYNY58,41633.3−11%

28Richmond County, NYNY501,29033.4−7%

29Dutchess County, NYNY300,70833.5−9%

30Suffolk County, NYNY1,546,09033.5−8%

31Schoharie County, NYNY30,17633.5−12%

32Putnam County, NYNY99,02833.7−10%

33Oneida County, NYNY226,39233.8−11%

34Chenango County, NYNY45,71533.8−12%

35Albany County, NYNY321,22534.0−8%

36Ontario County, NYNY113,13034.1−10%

37Rockland County, NYNY357,39734.1−6%

38Broome County, NYNY195,73634.1−11%

39Chautauqua County, NYNY124,12634.3−10%

40Chemung County, NYNY80,41534.3−10%

41Ulster County, NYNY183,33034.4−10%

42Warren County, NYNY65,02034.4−12%

43Steuben County, NYNY91,85534.5−10%

44Niagara County, NYNY208,91234.6−9%

45Seneca County, NYNY32,88334.7−9%

46Erie County, NYNY946,74134.7−9%

47Schuyler County, NYNY16,92434.7−10%

48Yates County, NYNY24,54734.8−8%

49Essex County, NYNY36,43835.1−11%

50Sullivan County, NYNY80,58635.2−9%

51Fulton County, NYNY52,21635.2−9%

52Herkimer County, NYNY59,21935.3−9%

53Queens County, NYNY2,358,18235.4+0%

54Greene County, NYNY47,23835.5−9%

55Schenectady County, NYNY162,58135.6−8%

56Delaware County, NYNY44,30535.8−13%

57New York County, NYNY1,664,86236.0+1%

58Westchester County, NYNY1,015,74336.4−3%

59Columbia County, NYNY60,16836.5−10%

60Montgomery County, NYNY50,04636.6−8%

61Nassau County, NYNY1,398,93936.7−5%

62Hamilton County, NYNY5,00639.7−13%

SHOWING 1–62 OF 62

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