RANKING · 2024 ACS · 67 SHOWN OF 67

Most segregated, Pennsylvania counties

Pennsylvania counties ranked by the CensusEasy Segregation Score, the White vs non-White index of dissimilarity across census tracts (2024 ACS). Higher means residents are more sorted into separate neighborhoods. This list covers the 67 counties in Pennsylvania that qualify, ranked against each other statewide.

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RELATEDLargest foreign-born population Most residents with a disability Largest veteran population Most uninsured people Largest senior population Most unmarried people

RANKPLACESTATEPOPSEGREGATION SCOREVS 2020

01Philadelphia County, PAPA1,574,28155−7%

02Berks County, PAPA440,07254−1%

03Delaware County, PAPA580,93751−6%

04Union County, PAPA42,31349−4%

05Huntingdon County, PAPA43,00146−13%

06Lehigh County, PAPA384,38346−9%

07Luzerne County, PAPA332,12645−7%

08Dauphin County, PAPA293,35144−4%

09Erie County, PAPA265,83242−7%

10Greene County, PAPA33,88541−15%

11Allegheny County, PAPA1,225,03541−9%

12Mercer County, PAPA107,86040−13%

13Forest County, PAPA6,61440−14%

14Cambria County, PAPA128,96839−18%

15Beaver County, PAPA166,03239−7%

16Lancaster County, PAPA563,15939−12%

17Lebanon County, PAPA146,38038−14%

18York County, PAPA473,19738−8%

19Somerset County, PAPA72,00438−13%

20Lycoming County, PAPA112,58738+3%

21Northampton County, PAPA324,41137−6%

22Indiana County, PAPA82,87837−14%

23Lawrence County, PAPA83,91136−24%

24Lackawanna County, PAPA216,50235−10%

25Centre County, PAPA157,39335−14%

26Wayne County, PAPA51,70335−0%

27Carbon County, PAPA65,86835+26%

28Schuylkill County, PAPA145,08535−20%

29Northumberland County, PAPA89,92034−8%

30Clearfield County, PAPA78,10033−29%

31Fayette County, PAPA123,02132−13%

32Franklin County, PAPA160,65231−3%

33Chester County, PAPA557,11631−4%

34Mifflin County, PAPA46,12731−1%

35McKean County, PAPA38,98430−23%

36Montour County, PAPA17,86829−32%

37Montgomery County, PAPA877,64329−6%

38Cumberland County, PAPA277,27029−10%

39Monroe County, PAPA167,17929−7%

40Clarion County, PAPA36,68029+7%

41Washington County, PAPA210,80228−12%

42Blair County, PAPA119,54128−12%

43Bucks County, PAPA647,82828−14%

44Sullivan County, PAPA5,85628−21%

45Westmoreland County, PAPA349,32428−23%

46Pike County, PAPA62,80827−40%

47Clinton County, PAPA37,87025+26%

48Adams County, PAPA107,59424−6%

49Butler County, PAPA200,16924−25%

50Wyoming County, PAPA25,79023+21%

51Columbia County, PAPA66,19323−28%

52Elk County, PAPA29,92622−18%

53Warren County, PAPA37,03822−9%

54Snyder County, PAPA39,65522−31%

55Venango County, PAPA49,34621−11%

56Armstrong County, PAPA63,69821−29%

57Bedford County, PAPA47,48020+51%

58Crawford County, PAPA81,79220−37%

59Bradford County, PAPA59,60020+19%

60Cameron County, PAPA4,21120−56%

61Juniata County, PAPA23,40319−23%

62Susquehanna County, PAPA38,23717−18%

63Jefferson County, PAPA43,25515−17%

64Tioga County, PAPA40,50215−11%

65Perry County, PAPA46,80615−8%

66Potter County, PAPA15,89715−9%

67Fulton County, PAPA14,48313−32%

SHOWING 1–67 OF 67

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES