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 2024 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. The median across all 99 is 65. Biggest climber in the top 100 since 2020: Hamilton County, IA, up 48 places to #49.

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IowaAll states All rankings

SAME RANKING BYCities States Metros

YEAR2010 2020 2024

RANKPLACESTATEPOPWELSH POPULATIONVS 2010

01Polk County, IAIA516,5463,729−4%

02Linn County, IAIA232,0281,275−31%

03Johnson County, IAIA160,0441,139+9%

04Scott County, IAIA175,259913+7%

05Dallas County, IAIA118,457883+43%

06▲1Story County, IAIA101,291659−16%

07▼1Black Hawk County, IAIA131,532629−5%

08▲5Warren County, IAIA57,331434+3%

09▲1Marion County, IAIA34,192353+11%

10▼1Woodbury County, IAIA106,649353+9%

11▼3Pottawattamie County, IAIA92,996352−66%

12▲9Des Moines County, IAIA38,077278−11%

13▼1Jasper County, IAIA38,153236−53%

14▲10Wapello County, IAIA35,210228−58%

15▲10Louisa County, IAIA10,416207−6%

16▲11Webster County, IAIA36,838189+16%

17▲21Boone County, IAIA26,799181−64%

18▼3Cerro Gordo County, IAIA42,372164−41%

19▼8Dubuque County, IAIA99,381163−57%

20▲3Washington County, IAIA22,667160−34%

21▲41Poweshiek County, IAIA18,368156+88%

22Iowa County, IAIA16,504156−34%

23▲5Union County, IAIA11,829155−13%

24▼5Clinton County, IAIA46,002152−64%

25▲9Lee County, IAIA32,306143+25%

26▼9Muscatine County, IAIA41,853142−48%

27▲9Cedar County, IAIA18,359141−27%

28▲13Page County, IAIA14,856139+17%

29▼15Mahaska County, IAIA21,880134−41%

30▼12Marshall County, IAIA39,890127−52%

31▼5Henry County, IAIA19,349124−46%

32▲5Monroe County, IAIA7,4061200%

33▼13Madison County, IAIA17,270118−53%

34▼4Cass County, IAIA12,960117+30%

35▼19Keokuk County, IAIA9,797115−11%

36▲25Bremer County, IAIA25,296114+31%

37▲36Howard County, IAIA9,415100+11%

38▲2Fayette County, IAIA19,04793+19%

39▲31Greene County, IAIA8,65892+96%

40▲4Appanoose County, IAIA12,07791−41%

41▼6Winneshiek County, IAIA19,73387+36%

42▼10Buena Vista County, IAIA20,44985−4%

43Cherokee County, IAIA11,36985+44%

44▲12Winnebago County, IAIA10,25185+21%

45▲3Dickinson County, IAIA18,07784+18%

46▼17Jackson County, IAIA19,28881−54%

47▼1Benton County, IAIA26,00480−70%

48▲10Jefferson County, IAIA15,291800%

49▲48Hamilton County, IAIA14,94470+119%

50▲1Mills County, IAIA14,79365−53%

51▼18Jones County, IAIA21,25363−16%

52▲15Harrison County, IAIA14,62362−53%

53▲15Adair County, IAIA7,40361+205%

54▲10Clayton County, IAIA16,84561−65%

55▲2Davis County, IAIA9,23061+33%

56▲38Wayne County, IAIA6,73859−49%

57▲27Butler County, IAIA14,04957−7%

58▲17Kossuth County, IAIA14,32255+45%

59▲1Calhoun County, IAIA9,56254+125%

60▼11Clay County, IAIA16,20252−81%

61▼14Fremont County, IAIA6,52252+30%

62▼20Plymouth County, IAIA25,69749−60%

63▲8Sioux County, IAIA36,77449+308%

64▼19Hardin County, IAIA16,45547−43%

65▲26Sac County, IAIA9,52547−30%

66▼14Tama County, IAIA16,79647−47%

67▲2Clarke County, IAIA9,57446−36%

68▼18Lucas County, IAIA8,84745−20%

69▼4Grundy County, IAIA12,36144−38%

70▲7Humboldt County, IAIA9,40941+128%

71▼12Wright County, IAIA12,80139−64%

72▼41Buchanan County, IAIA20,88338−67%

73▲15Palo Alto County, IAIA8,89936+125%

74▼11Allamakee County, IAIA14,23835+250%

75▲23Floyd County, IAIA14,90135−40%

76▼23Montgomery County, IAIA10,00234−86%

77▼1Crawford County, IAIA16,23733−28%

78▲15Shelby County, IAIA11,689330%

79▼13Emmet County, IAIA9,10731−34%

80▲15Lyon County, IAIA12,35431−11%

81▲2Carroll County, IAIA20,30330−69%

82▼8Franklin County, IAIA9,86828−45%

83▼28Decatur County, IAIA7,65526−87%

84▼30Guthrie County, IAIA10,78224−84%

85▼6Monona County, IAIA8,53922−35%

86Ida County, IAIA6,77716−38%

87▲3O'Brien County, IAIA14,22015−69%

88▼49Delaware County, IAIA17,67412−91%

89▼8Ringgold County, IAIA4,64210−55%

90▼5Hancock County, IAIA10,5289−73%

91▲8Osceola County, IAIA5,9809–

92▼20Worth County, IAIA7,3389−71%

93▼4Mitchell County, IAIA10,6508−50%

94▼2Adams County, IAIA3,6176−84%

95▼15Van Buren County, IAIA7,1316−88%

96▼9Chickasaw County, IAIA11,6635−88%

97▼1Audubon County, IAIA5,5094−90%

98▼20Pocahontas County, IAIA6,8194−92%

99▼17Taylor County, IAIA5,8351−96%

SHOWING 1–99 OF 99

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