RANKING · 2000 CENSUS · 67 SHOWN OF 67

Youngest by median age, Pennsylvania counties · 2000

Pennsylvania counties with the youngest median age (2000 ACS). This list covers the 67 counties in Pennsylvania that qualify, ranked against each other statewide. The median across all 67 is 38.7.

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SAME RANKING BYCities States Metros ZIP codes

YEAR1990 2000 2010 2020 2024

RANKPLACESTATEPOPMEDIAN AGEVS 1990

01Centre County, PAPA157,39328.7+6%

02Philadelphia County, PAPA1,574,28134.2+3%

03Union County, PAPA42,31335.8+10%

04Lancaster County, PAPA563,15936.1+10%

05Erie County, PAPA265,83236.2+10%

06Indiana County, PAPA82,87836.2+13%

07Clarion County, PAPA36,68036.3+13%

08Snyder County, PAPA39,65536.7+13%

09Chester County, PAPA557,11636.9+9%

10Adams County, PAPA107,59437.0+10%

11Monroe County, PAPA167,17937.2+9%

12Berks County, PAPA440,07237.4+5%

13Delaware County, PAPA580,93737.4+8%

14Columbia County, PAPA66,19337.5+10%

15Perry County, PAPA46,80637.5+12%

16Butler County, PAPA200,16937.6+11%

17Bucks County, PAPA647,82837.7+12%

18Huntingdon County, PAPA43,00137.7+10%

19Juniata County, PAPA23,40337.7+9%

20Clinton County, PAPA37,87037.8+9%

21Wyoming County, PAPA25,79037.8+14%

22York County, PAPA473,19737.8+9%

23Dauphin County, PAPA293,35137.9+8%

24Crawford County, PAPA81,79238.1+10%

25Cumberland County, PAPA277,27038.1+10%

26Fulton County, PAPA14,48338.2+12%

27Greene County, PAPA33,88538.2+9%

28Montgomery County, PAPA877,64338.2+6%

29Franklin County, PAPA160,65238.3+9%

30Lehigh County, PAPA384,38338.3+7%

31Lycoming County, PAPA112,58738.4+10%

32Northampton County, PAPA324,41138.5+10%

33Tioga County, PAPA40,50238.5+13%

34McKean County, PAPA38,98438.7+8%

35Lebanon County, PAPA146,38038.7+10%

36Mifflin County, PAPA46,12738.8+9%

37Bradford County, PAPA59,60038.9+12%

38Potter County, PAPA15,89739.1+9%

39Clearfield County, PAPA78,10039.3+10%

40Elk County, PAPA29,92639.4+11%

41Bedford County, PAPA47,48039.5+11%

42Blair County, PAPA119,54139.5+9%

43Susquehanna County, PAPA38,23739.5+13%

44Allegheny County, PAPA1,225,03539.6+8%

45Mercer County, PAPA107,86039.6+9%

46Pike County, PAPA62,80839.6+10%

47Montour County, PAPA17,86839.8+13%

48Jefferson County, PAPA43,25539.8+11%

49Somerset County, PAPA72,00440.2+11%

50Venango County, PAPA49,34640.2+12%

51Fayette County, PAPA123,02140.2+9%

52Lackawanna County, PAPA216,50240.3+7%

53Armstrong County, PAPA63,69840.4+11%

54Warren County, PAPA37,03840.5+11%

55Lawrence County, PAPA83,91140.5+9%

56Carbon County, PAPA65,86840.6+9%

57Beaver County, PAPA166,03240.7+10%

58Northumberland County, PAPA89,92040.8+8%

59Washington County, PAPA210,80240.8+9%

60Wayne County, PAPA51,70340.8+12%

61Luzerne County, PAPA332,12640.8+7%

62Schuylkill County, PAPA145,08540.9+6%

63Cambria County, PAPA128,96841.2+10%

64Cameron County, PAPA4,21141.3+10%

65Westmoreland County, PAPA349,32441.3+9%

66Sullivan County, PAPA5,85643.0+13%

67Forest County, PAPA6,61444.2+8%

SHOWING 1–67 OF 67

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