RANKING · 2020 CENSUS · 67 SHOWN OF 67

Largest Slovak population, Pennsylvania counties · 2020

Pennsylvania counties ranked by the number of residents who are Slovak ancestry, from the 2020 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. This list covers the 67 counties in Pennsylvania that qualify, ranked against each other statewide.

Slovak Americans: full group profile →

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SAME RANKING BYCities States Metros

RELATEDLargest American population Highest American population share Largest Arab population Highest Arab population share Largest Egyptian population Highest Egyptian population share

YEAR2010 2020 2024

RANKPLACESTATEPOPSLOVAK POPULATIONVS 2010

01Allegheny County, PAPA1,225,03540,190−21%

02Westmoreland County, PAPA349,32419,621−20%

03Luzerne County, PAPA332,12613,306−28%

04Cambria County, PAPA128,9688,111−26%

05Washington County, PAPA210,8026,857−25%

06Northampton County, PAPA324,4116,821−3%

07Fayette County, PAPA123,0216,652−30%

08Lehigh County, PAPA384,3836,480−31%

09Butler County, PAPA200,1695,071−12%

10Montgomery County, PAPA877,6434,559−26%

11Lackawanna County, PAPA216,5024,256−41%

12Beaver County, PAPA166,0323,912−33%

13Bucks County, PAPA647,8283,842−16%

14Erie County, PAPA265,8323,766−30%

15Chester County, PAPA557,1163,643−19%

16Schuylkill County, PAPA145,0853,073−41%

17Indiana County, PAPA82,8783,036−26%

18Mercer County, PAPA107,8602,867−40%

19Berks County, PAPA440,0722,532−39%

20Carbon County, PAPA65,8682,456−43%

21Centre County, PAPA157,3932,345−16%

22Philadelphia County, PAPA1,574,2812,311−7%

23Armstrong County, PAPA63,6982,110−31%

24York County, PAPA473,1971,854+10%

25Cumberland County, PAPA277,2701,738−9%

26Dauphin County, PAPA293,3511,705−25%

27Lancaster County, PAPA563,1591,654−20%

28Clearfield County, PAPA78,1001,582−43%

29Somerset County, PAPA72,0041,522−23%

30Delaware County, PAPA580,9371,332−41%

31Lawrence County, PAPA83,9111,293−31%

32Monroe County, PAPA167,1791,090−15%

33Greene County, PAPA33,885888−30%

34Northumberland County, PAPA89,920874−24%

35Blair County, PAPA119,541855−22%

36Jefferson County, PAPA43,255795+12%

37Lebanon County, PAPA146,380771−53%

38Crawford County, PAPA81,792760−34%

39Columbia County, PAPA66,193703−16%

40Wayne County, PAPA51,703658−19%

41Susquehanna County, PAPA38,237499−48%

42Lycoming County, PAPA112,587496+15%

43Franklin County, PAPA160,652383−24%

44Wyoming County, PAPA25,790371−47%

45Adams County, PAPA107,594306−29%

46Venango County, PAPA49,346284−33%

47Pike County, PAPA62,808266−22%

48McKean County, PAPA38,984259−2%

49Warren County, PAPA37,038252−43%

50Bradford County, PAPA59,600243+5%

51Elk County, PAPA29,926215−16%

52Clinton County, PAPA37,870201−39%

53Clarion County, PAPA36,680195+27%

54Huntingdon County, PAPA43,001152−45%

55Bedford County, PAPA47,480151−55%

56Perry County, PAPA46,806145−41%

57Union County, PAPA42,313131+8%

58Montour County, PAPA17,868112−55%

59Mifflin County, PAPA46,12777−31%

60Snyder County, PAPA39,65575−42%

61Potter County, PAPA15,89765−46%

62Tioga County, PAPA40,50263−40%

63Forest County, PAPA6,61459−56%

64Juniata County, PAPA23,40348−64%

65Cameron County, PAPA4,21124−58%

66Sullivan County, PAPA5,85618−62%

67Fulton County, PAPA14,48316+0%

SHOWING 1–67 OF 67

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