RANKING · 2000 CENSUS · 67 SHOWN OF 67

Oldest by median age, Pennsylvania counties · 2000

Pennsylvania counties ranked by median age of residents (2000 ACS). This list covers the 67 counties in Pennsylvania that qualify, ranked against each other statewide.

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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 1990

01Forest County, PAPA6,61444.2+8%

02Sullivan County, PAPA5,85643.0+13%

03Cameron County, PAPA4,21141.3+10%

04Westmoreland County, PAPA349,32441.3+9%

05Cambria County, PAPA128,96841.2+10%

06Schuylkill County, PAPA145,08540.9+6%

07Northumberland County, PAPA89,92040.8+8%

08Washington County, PAPA210,80240.8+9%

09Wayne County, PAPA51,70340.8+12%

10Luzerne County, PAPA332,12640.8+7%

11Beaver County, PAPA166,03240.7+10%

12Carbon County, PAPA65,86840.6+9%

13Warren County, PAPA37,03840.5+11%

14Lawrence County, PAPA83,91140.5+9%

15Armstrong County, PAPA63,69840.4+11%

16Lackawanna County, PAPA216,50240.3+7%

17Somerset County, PAPA72,00440.2+11%

18Venango County, PAPA49,34640.2+12%

19Fayette County, PAPA123,02140.2+9%

20Montour County, PAPA17,86839.8+13%

21Jefferson County, PAPA43,25539.8+11%

22Allegheny County, PAPA1,225,03539.6+8%

23Mercer County, PAPA107,86039.6+9%

24Pike County, PAPA62,80839.6+10%

25Bedford County, PAPA47,48039.5+11%

26Blair County, PAPA119,54139.5+9%

27Susquehanna County, PAPA38,23739.5+13%

28Elk County, PAPA29,92639.4+11%

29Clearfield County, PAPA78,10039.3+10%

30Potter County, PAPA15,89739.1+9%

31Bradford County, PAPA59,60038.9+12%

32Mifflin County, PAPA46,12738.8+9%

33McKean County, PAPA38,98438.7+8%

34Lebanon County, PAPA146,38038.7+10%

35Northampton County, PAPA324,41138.5+10%

36Tioga County, PAPA40,50238.5+13%

37Lycoming County, PAPA112,58738.4+10%

38Franklin County, PAPA160,65238.3+9%

39Lehigh County, PAPA384,38338.3+7%

40Fulton County, PAPA14,48338.2+12%

41Greene County, PAPA33,88538.2+9%

42Montgomery County, PAPA877,64338.2+6%

43Crawford County, PAPA81,79238.1+10%

44Cumberland County, PAPA277,27038.1+10%

45Dauphin County, PAPA293,35137.9+8%

46Clinton County, PAPA37,87037.8+9%

47Wyoming County, PAPA25,79037.8+14%

48York County, PAPA473,19737.8+9%

49Bucks County, PAPA647,82837.7+12%

50Huntingdon County, PAPA43,00137.7+10%

51Juniata County, PAPA23,40337.7+9%

52Butler County, PAPA200,16937.6+11%

53Columbia County, PAPA66,19337.5+10%

54Perry County, PAPA46,80637.5+12%

55Berks County, PAPA440,07237.4+5%

56Delaware County, PAPA580,93737.4+8%

57Monroe County, PAPA167,17937.2+9%

58Adams County, PAPA107,59437.0+10%

59Chester County, PAPA557,11636.9+9%

60Snyder County, PAPA39,65536.7+13%

61Clarion County, PAPA36,68036.3+13%

62Erie County, PAPA265,83236.2+10%

63Indiana County, PAPA82,87836.2+13%

64Lancaster County, PAPA563,15936.1+10%

65Union County, PAPA42,31335.8+10%

66Philadelphia County, PAPA1,574,28134.2+3%

67Centre County, PAPA157,39328.7+6%

SHOWING 1–67 OF 67

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU DECENNIAL CENSUS