RANKING · 2020 CENSUS · 67 SHOWN OF 67

Most segregated, Pennsylvania counties · 2020

Pennsylvania counties ranked by the CensusEasy Segregation Score, the White vs non-White index of dissimilarity across census tracts (2020 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. The median across all 67 is 36.

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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 –

01Philadelphia County, PAPA1,574,28159–

02Delaware County, PAPA580,93755–

03Berks County, PAPA440,07254–

04Huntingdon County, PAPA43,00153–

05Union County, PAPA42,31351–

06Lehigh County, PAPA384,38351–

07Greene County, PAPA33,88549–

08Luzerne County, PAPA332,12648–

09Lawrence County, PAPA83,91148–

10Cambria County, PAPA128,96848–

11Clearfield County, PAPA78,10047–

12Forest County, PAPA6,61446–

13Dauphin County, PAPA293,35146–

14Mercer County, PAPA107,86046–

15Pike County, PAPA62,80846–

16Erie County, PAPA265,83245–

17Cameron County, PAPA4,21145–

18Lebanon County, PAPA146,38045–

19Allegheny County, PAPA1,225,03544–

20Lancaster County, PAPA563,15944–

21Schuylkill County, PAPA145,08544–

22Indiana County, PAPA82,87843–

23Somerset County, PAPA72,00443–

24Montour County, PAPA17,86843–

25Beaver County, PAPA166,03242–

26York County, PAPA473,19741–

27Centre County, PAPA157,39341–

28Northampton County, PAPA324,41140–

29Lackawanna County, PAPA216,50240–

30McKean County, PAPA38,98439–

31Fayette County, PAPA123,02137–

32Northumberland County, PAPA89,92037–

33Lycoming County, PAPA112,58737–

34Westmoreland County, PAPA349,32436–

35Sullivan County, PAPA5,85635–

36Wayne County, PAPA51,70335–

37Chester County, PAPA557,11633–

38Bucks County, PAPA647,82833–

39Cumberland County, PAPA277,27032–

40Washington County, PAPA210,80232–

41Franklin County, PAPA160,65232–

42Blair County, PAPA119,54132–

43Crawford County, PAPA81,79232–

44Butler County, PAPA200,16932–

45Columbia County, PAPA66,19332–

46Mifflin County, PAPA46,12731–

47Snyder County, PAPA39,65531–

48Monroe County, PAPA167,17931–

49Montgomery County, PAPA877,64331–

50Armstrong County, PAPA63,69830–

51Carbon County, PAPA65,86828–

52Elk County, PAPA29,92627–

53Clarion County, PAPA36,68027–

54Adams County, PAPA107,59426–

55Juniata County, PAPA23,40325–

56Venango County, PAPA49,34624–

57Warren County, PAPA37,03824–

58Susquehanna County, PAPA38,23720–

59Clinton County, PAPA37,87020–

60Wyoming County, PAPA25,79019–

61Jefferson County, PAPA43,25519–

62Fulton County, PAPA14,48319–

63Tioga County, PAPA40,50217–

64Bradford County, PAPA59,60017–

65Perry County, PAPA46,80617–

66Potter County, PAPA15,89716–

67Bedford County, PAPA47,48014–

SHOWING 1–67 OF 67

Download CSV (full list, 67 rows)How this score is calculated

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