RANKING · 2010 CENSUS · 67 SHOWN OF 67

Oldest by median age, Pennsylvania counties · 2010

Pennsylvania counties ranked by median age of residents (2010 ACS). This list covers the 67 counties in Pennsylvania that qualify, ranked against each other statewide. The median across all 67 is 41.8.

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SAME RANKING BYCities States Metros ZIP codes

YEAR1990 2000 2010 2020 2024

RANKPLACESTATEPOPMEDIAN AGEVS 2000

01Sullivan County, PAPA5,85649.9+16%

02Cameron County, PAPA4,21148.2+17%

03Wayne County, PAPA51,70345.9+13%

04Elk County, PAPA29,92645.1+14%

05Warren County, PAPA37,03845.1+11%

06Susquehanna County, PAPA38,23745.1+14%

07Westmoreland County, PAPA349,32445.1+9%

08Potter County, PAPA15,89744.9+15%

09Armstrong County, PAPA63,69844.5+10%

10Beaver County, PAPA166,03244.4+9%

11Somerset County, PAPA72,00444.3+10%

12Venango County, PAPA49,34644.3+10%

13Bedford County, PAPA47,48043.9+11%

14Carbon County, PAPA65,86843.9+8%

15Montour County, PAPA17,86843.9+10%

16Cambria County, PAPA128,96843.8+6%

17Pike County, PAPA62,80843.7+10%

18Washington County, PAPA210,80243.6+7%

19Lawrence County, PAPA83,91143.6+8%

20Fayette County, PAPA123,02143.6+8%

21Bradford County, PAPA59,60043.4+12%

22Northumberland County, PAPA89,92043.4+6%

23Schuylkill County, PAPA145,08543.2+6%

24Forest County, PAPA6,61443.0−3%

25Jefferson County, PAPA43,25543.0+8%

26Clearfield County, PAPA78,10042.9+9%

27Mercer County, PAPA107,86042.8+8%

28Mifflin County, PAPA46,12742.5+10%

29Luzerne County, PAPA332,12642.5+4%

30Tioga County, PAPA40,50242.4+10%

31Wyoming County, PAPA25,79042.3+12%

32Blair County, PAPA119,54142.0+6%

33Bucks County, PAPA647,82842.0+11%

34Fulton County, PAPA14,48341.8+9%

35Lackawanna County, PAPA216,50241.8+4%

36Crawford County, PAPA81,79241.7+9%

37McKean County, PAPA38,98441.5+7%

38Butler County, PAPA200,16941.5+10%

39Adams County, PAPA107,59441.3+12%

40Allegheny County, PAPA1,225,03541.3+4%

41Huntingdon County, PAPA43,00141.2+9%

42Greene County, PAPA33,88541.1+8%

43Perry County, PAPA46,80641.1+10%

44Lycoming County, PAPA112,58741.1+7%

45Lebanon County, PAPA146,38041.0+6%

46Northampton County, PAPA324,41140.9+6%

47Juniata County, PAPA23,40340.9+8%

48Montgomery County, PAPA877,64340.6+6%

49Cumberland County, PAPA277,27040.3+6%

50Monroe County, PAPA167,17940.3+8%

51Franklin County, PAPA160,65240.1+5%

52York County, PAPA473,19740.1+6%

53Columbia County, PAPA66,19339.5+5%

54Clarion County, PAPA36,68039.4+9%

55Dauphin County, PAPA293,35139.4+4%

56Lehigh County, PAPA384,38339.4+3%

57Chester County, PAPA557,11639.3+7%

58Snyder County, PAPA39,65539.2+7%

59Berks County, PAPA440,07239.1+5%

60Delaware County, PAPA580,93738.7+3%

61Erie County, PAPA265,83238.6+7%

62Clinton County, PAPA37,87038.5+2%

63Union County, PAPA42,31338.5+8%

64Indiana County, PAPA82,87838.3+6%

65Lancaster County, PAPA563,15938.2+6%

66Philadelphia County, PAPA1,574,28133.5−2%

67Centre County, PAPA157,39328.70%

SHOWING 1–67 OF 67

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