RANKING · 2024 ACS · 67 SHOWN OF 67

Largest Slovak population, Pennsylvania counties

Pennsylvania counties ranked by the number of residents who are Slovak ancestry, from the 2024 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. The median across all 67 is 880. Biggest climber in the top 100 since 2020: Perry County, PA, up 7 places to #49.

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SAME RANKING BYCities States Metros

YEAR2010 2020 2024

RANKPLACESTATEPOPSLOVAK POPULATIONVS 2010

01Allegheny County, PAPA1,225,03533,901−33%

02Westmoreland County, PAPA349,32414,698−40%

03Luzerne County, PAPA332,12610,629−43%

04Cambria County, PAPA128,9686,274−42%

05▲3Lehigh County, PAPA384,3836,144−35%

06▼1Washington County, PAPA210,8025,610−39%

07Fayette County, PAPA123,0215,219−45%

08▼2Northampton County, PAPA324,4115,200−26%

09Butler County, PAPA200,1695,008−13%

10Montgomery County, PAPA877,6434,264−31%

11Lackawanna County, PAPA216,5023,669−49%

12Beaver County, PAPA166,0323,555−39%

13Bucks County, PAPA647,8283,189−30%

14▲1Chester County, PAPA557,1163,075−32%

15▲1Schuylkill County, PAPA145,0852,724−48%

16▲2Mercer County, PAPA107,8602,659−44%

17▼3Erie County, PAPA265,8322,604−52%

18▲4Philadelphia County, PAPA1,574,2812,588+4%

19▼2Indiana County, PAPA82,8782,360−42%

20▼1Berks County, PAPA440,0722,257−46%

21▼1Carbon County, PAPA65,8682,114−51%

22▲5Lancaster County, PAPA563,1592,012−2%

23Armstrong County, PAPA63,6981,835−40%

24▼3Centre County, PAPA157,3931,657−41%

25▲5Delaware County, PAPA580,9371,538−32%

26▼1Cumberland County, PAPA277,2701,497−21%

27▲1Clearfield County, PAPA78,1001,464−48%

28▼2Dauphin County, PAPA293,3511,415−38%

29▼5York County, PAPA473,1971,411−16%

30▼1Somerset County, PAPA72,0041,165−41%

31Lawrence County, PAPA83,9111,050−44%

32Monroe County, PAPA167,179986−23%

33▲2Blair County, PAPA119,541883−19%

34Northumberland County, PAPA89,920880−23%

35▼2Greene County, PAPA33,885778−38%

36▲2Crawford County, PAPA81,792667−42%

37Lebanon County, PAPA146,380650−60%

38▼2Jefferson County, PAPA43,255572−19%

39▲1Wayne County, PAPA51,703489−40%

40▼1Columbia County, PAPA66,193466−44%

41Susquehanna County, PAPA38,237426−56%

42▲1Franklin County, PAPA160,652403−21%

43▼1Lycoming County, PAPA112,587381−12%

44▲1Adams County, PAPA107,594365−15%

45▲5Bradford County, PAPA59,600322+39%

46▼2Wyoming County, PAPA25,790288−59%

47▼1Venango County, PAPA49,346237−44%

48McKean County, PAPA38,984236−11%

49▲7Perry County, PAPA46,806190−23%

50▲5Bedford County, PAPA47,480183−46%

51▼2Warren County, PAPA37,038169−62%

52Clinton County, PAPA37,870166−50%

53Clarion County, PAPA36,680152−1%

54▲3Union County, PAPA42,313151+25%

55▼4Elk County, PAPA29,926144−44%

56▼9Pike County, PAPA62,808125−63%

57▼3Huntingdon County, PAPA43,001118−57%

58Montour County, PAPA17,868111−55%

59▲3Tioga County, PAPA40,50252−50%

60▲3Forest County, PAPA6,61451−62%

61▼1Snyder County, PAPA39,65546−64%

62▼3Mifflin County, PAPA46,12742−62%

63▼2Potter County, PAPA15,89735−71%

64Juniata County, PAPA23,40332−76%

65▲1Sullivan County, PAPA5,85618−62%

66▲1Fulton County, PAPA14,483160%

67▼2Cameron County, PAPA4,2117−88%

SHOWING 1–67 OF 67

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES