RANKING · 2020 CENSUS · 67 SHOWN OF 67

Largest Welsh population, Pennsylvania counties · 2020

Pennsylvania counties ranked by the number of residents who are Welsh 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. The median across all 67 is 1,177.

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

YEAR2010 2020 2024

RANKPLACESTATEPOPWELSH POPULATIONVS 2010

01Allegheny County, PAPA1,225,03513,434−14%

02Luzerne County, PAPA332,12612,266−23%

03Lackawanna County, PAPA216,5029,879−27%

04Chester County, PAPA557,1168,147−5%

05Montgomery County, PAPA877,6438,011−17%

06Bucks County, PAPA647,8286,191−27%

07Lancaster County, PAPA563,1595,882−2%

08Philadelphia County, PAPA1,574,2815,373+24%

09Delaware County, PAPA580,9375,275−16%

10Berks County, PAPA440,0725,267−13%

11Lehigh County, PAPA384,3834,810−30%

12Northampton County, PAPA324,4114,808−20%

13York County, PAPA473,1974,407−15%

14Cumberland County, PAPA277,2703,751−11%

15Schuylkill County, PAPA145,0853,489−23%

16Westmoreland County, PAPA349,3243,466−29%

17Washington County, PAPA210,8022,776+12%

18Dauphin County, PAPA293,3512,557−38%

19Beaver County, PAPA166,0322,457+15%

20Mercer County, PAPA107,8602,195+12%

21Monroe County, PAPA167,1792,002−16%

22Erie County, PAPA265,8321,975−20%

23Cambria County, PAPA128,9681,869−31%

24Butler County, PAPA200,1691,868−38%

25Centre County, PAPA157,3931,796−19%

26Franklin County, PAPA160,6521,742+32%

27Susquehanna County, PAPA38,2371,603−31%

28Lawrence County, PAPA83,9111,518−26%

29Wyoming County, PAPA25,7901,413−20%

30Columbia County, PAPA66,1931,333−29%

31Northumberland County, PAPA89,9201,197−31%

32Indiana County, PAPA82,8781,192−18%

33Lycoming County, PAPA112,5871,190−27%

34Carbon County, PAPA65,8681,177−19%

35Somerset County, PAPA72,0041,1540%

36Blair County, PAPA119,5411,142−24%

37Bradford County, PAPA59,6001,058−32%

38Lebanon County, PAPA146,3801,058−1%

39Tioga County, PAPA40,5021,044−1%

40Wayne County, PAPA51,7031,028−25%

41Clearfield County, PAPA78,100960−6%

42Crawford County, PAPA81,792923−31%

43Fayette County, PAPA123,021880−44%

44Adams County, PAPA107,594740−24%

45Union County, PAPA42,313655−8%

46Venango County, PAPA49,346631−20%

47Montour County, PAPA17,868550+4%

48Warren County, PAPA37,038538+16%

49Bedford County, PAPA47,480491−28%

50Armstrong County, PAPA63,698484−28%

51Mifflin County, PAPA46,127468−2%

52Pike County, PAPA62,808437−39%

53Jefferson County, PAPA43,255437−26%

54Perry County, PAPA46,806422−30%

55Snyder County, PAPA39,655397−22%

56Huntingdon County, PAPA43,001390−41%

57McKean County, PAPA38,984373−11%

58Clinton County, PAPA37,870340−9%

59Greene County, PAPA33,885334+7%

60Clarion County, PAPA36,680280−19%

61Potter County, PAPA15,897197−6%

62Juniata County, PAPA23,403161−18%

63Sullivan County, PAPA5,856109+21%

64Elk County, PAPA29,926102−32%

65Fulton County, PAPA14,48399+16%

66Forest County, PAPA6,61461+91%

67Cameron County, PAPA4,21130−59%

SHOWING 1–67 OF 67

Download CSV (full list, 67 rows)

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