RANKING · 2024 ACS · 99 SHOWN OF 99

Largest Welsh population, Iowa counties

Iowa counties ranked by the number of residents who are Welsh ancestry, from the 2023 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. This list covers the 99 counties in Iowa that qualify, ranked against each other statewide.

IowaAll states All rankings

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

RANKPLACESTATEPOPWELSH POPULATIONVS 2000

01Polk County, IAIA516,5463,729–

02Linn County, IAIA232,0281,275–

03Johnson County, IAIA160,0441,139–

04Scott County, IAIA175,259913–

05Dallas County, IAIA118,457883–

06Story County, IAIA101,291659–

07Black Hawk County, IAIA131,532629–

08Warren County, IAIA57,331434–

09Marion County, IAIA34,192353–

10Woodbury County, IAIA106,649353–

11Pottawattamie County, IAIA92,996352–

12Des Moines County, IAIA38,077278–

13Jasper County, IAIA38,153236–

14Wapello County, IAIA35,210228–

15Louisa County, IAIA10,416207–

16Webster County, IAIA36,838189–

17Boone County, IAIA26,799181–

18Cerro Gordo County, IAIA42,372164–

19Dubuque County, IAIA99,381163–

20Washington County, IAIA22,667160–

21Poweshiek County, IAIA18,368156–

22Iowa County, IAIA16,504156–

23Union County, IAIA11,829155–

24Clinton County, IAIA46,002152–

25Lee County, IAIA32,306143–

26Muscatine County, IAIA41,853142–

27Cedar County, IAIA18,359141–

28Page County, IAIA14,856139–

29Mahaska County, IAIA21,880134–

30Marshall County, IAIA39,890127–

31Henry County, IAIA19,349124–

32Monroe County, IAIA7,406120–

33Madison County, IAIA17,270118–

34Cass County, IAIA12,960117–

35Keokuk County, IAIA9,797115–

36Bremer County, IAIA25,296114–

37Howard County, IAIA9,415100–

38Fayette County, IAIA19,04793–

39Greene County, IAIA8,65892–

40Appanoose County, IAIA12,07791–

41Winneshiek County, IAIA19,73387–

42Buena Vista County, IAIA20,44985–

43Cherokee County, IAIA11,36985–

44Winnebago County, IAIA10,25185–

45Dickinson County, IAIA18,07784–

46Jackson County, IAIA19,28881–

47Benton County, IAIA26,00480–

48Jefferson County, IAIA15,29180–

49Hamilton County, IAIA14,94470–

50Mills County, IAIA14,79365–

51Jones County, IAIA21,25363–

52Harrison County, IAIA14,62362–

53Adair County, IAIA7,40361–

54Clayton County, IAIA16,84561–

55Davis County, IAIA9,23061–

56Wayne County, IAIA6,73859–

57Butler County, IAIA14,04957–

58Kossuth County, IAIA14,32255–

59Calhoun County, IAIA9,56254–

60Clay County, IAIA16,20252–

61Fremont County, IAIA6,52252–

62Plymouth County, IAIA25,69749–

63Sioux County, IAIA36,77449–

64Hardin County, IAIA16,45547–

65Sac County, IAIA9,52547–

66Tama County, IAIA16,79647–

67Clarke County, IAIA9,57446–

68Lucas County, IAIA8,84745–

69Grundy County, IAIA12,36144–

70Humboldt County, IAIA9,40941–

71Wright County, IAIA12,80139–

72Buchanan County, IAIA20,88338–

73Palo Alto County, IAIA8,89936–

74Allamakee County, IAIA14,23835–

75Floyd County, IAIA14,90135–

76Montgomery County, IAIA10,00234–

77Crawford County, IAIA16,23733–

78Shelby County, IAIA11,68933–

79Emmet County, IAIA9,10731–

80Lyon County, IAIA12,35431–

81Carroll County, IAIA20,30330–

82Franklin County, IAIA9,86828–

83Decatur County, IAIA7,65526–

84Guthrie County, IAIA10,78224–

85Monona County, IAIA8,53922–

86Ida County, IAIA6,77716–

87O'Brien County, IAIA14,22015–

88Delaware County, IAIA17,67412–

89Ringgold County, IAIA4,64210–

90Hancock County, IAIA10,5289–

91Osceola County, IAIA5,9809–

92Worth County, IAIA7,3389–

93Mitchell County, IAIA10,6508–

94Adams County, IAIA3,6176–

95Van Buren County, IAIA7,1316–

96Chickasaw County, IAIA11,6635–

97Audubon County, IAIA5,5094–

98Pocahontas County, IAIA6,8194–

99Taylor County, IAIA5,8351–

SHOWING 1–99 OF 99

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UPDATED 2026-06-06 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES