RANKING · 2020 CENSUS · 99 SHOWN OF 99

Highest Welsh population share, Iowa counties · 2020

Iowa counties ranked by the share of all residents who are Welsh ancestry (2020 American Community Survey). A concentration measure: Welsh residents as a percentage of total population. This list covers the 99 counties in Iowa that qualify, ranked against each other statewide. The median across all 99 is 0.5%.

Welsh Americans: full group profile →

IowaAll states All rankings

SAME RANKING BYCities States Metros

YEAR2010 2020 2024

RANKPLACESTATEPOPWELSH SHAREVS 2010

01Keokuk County, IAIA9,7973.0%+1.7 pts

02Louisa County, IAIA10,4161.8%−0.1 pts

03Madison County, IAIA17,2701.6%0.0 pts

04Iowa County, IAIA16,5041.6%+0.1 pts

05Monroe County, IAIA7,4061.5%−0.1 pts

06Mahaska County, IAIA21,8801.4%+0.4 pts

07Fremont County, IAIA6,5221.3%+0.8 pts

08Marion County, IAIA34,1921.2%+0.3 pts

09Union County, IAIA11,8291.1%−0.3 pts

10Cass County, IAIA12,9601.0%+0.4 pts

11Jasper County, IAIA38,1531.0%−0.4 pts

12Washington County, IAIA22,6671.0%−0.1 pts

13Lucas County, IAIA8,8471.0%+0.4 pts

14Decatur County, IAIA7,6550.9%−1.4 pts

15Cherokee County, IAIA11,3690.9%+0.4 pts

16Henry County, IAIA19,3490.9%−0.3 pts

17Dallas County, IAIA118,4570.9%−0.1 pts

18Polk County, IAIA516,5460.8%−0.1 pts

19Johnson County, IAIA160,0440.8%0.0 pts

20Davis County, IAIA9,2300.8%+0.3 pts

21Appanoose County, IAIA12,0770.7%−0.4 pts

22Montgomery County, IAIA10,0020.7%−1.5 pts

23Marshall County, IAIA39,8900.7%+0.1 pts

24Cerro Gordo County, IAIA42,3720.7%+0.1 pts

25Jackson County, IAIA19,2880.7%−0.2 pts

26Adair County, IAIA7,4030.7%+0.4 pts

27Muscatine County, IAIA41,8530.7%0.0 pts

28Winnebago County, IAIA10,2510.7%0.0 pts

29Calhoun County, IAIA9,5620.7%+0.4 pts

30Guthrie County, IAIA10,7820.7%−0.7 pts

31Page County, IAIA14,8560.7%−0.1 pts

32Ringgold County, IAIA4,6420.7%+0.2 pts

33Warren County, IAIA57,3310.7%−0.3 pts

34Des Moines County, IAIA38,0770.7%−0.1 pts

35Buena Vista County, IAIA20,4490.6%+0.2 pts

36Linn County, IAIA232,0280.6%−0.3 pts

37Delaware County, IAIA17,6740.6%−0.1 pts

38Story County, IAIA101,2910.6%−0.3 pts

39Worth County, IAIA7,3380.6%+0.2 pts

40Buchanan County, IAIA20,8830.6%+0.1 pts

41Cedar County, IAIA18,3590.6%−0.4 pts

42Emmet County, IAIA9,1070.6%+0.1 pts

43Jones County, IAIA21,2530.6%+0.2 pts

44Winneshiek County, IAIA19,7330.6%+0.3 pts

45Wapello County, IAIA35,2100.6%−0.9 pts

46Clinton County, IAIA46,0020.6%−0.3 pts

47Fayette County, IAIA19,0470.6%+0.2 pts

48Mills County, IAIA14,7930.5%−0.4 pts

49Greene County, IAIA8,6580.5%0.0 pts

50Hardin County, IAIA16,4550.5%+0.1 pts

51Black Hawk County, IAIA131,5320.5%0.0 pts

52Pocahontas County, IAIA6,8190.5%−0.1 pts

53Wright County, IAIA12,8010.5%−0.3 pts

54Clay County, IAIA16,2020.5%−1.1 pts

55Clarke County, IAIA9,5740.5%−0.3 pts

56Dickinson County, IAIA18,0770.5%+0.1 pts

57Taylor County, IAIA5,8350.5%+0.1 pts

58Adams County, IAIA3,6170.5%−0.4 pts

59Van Buren County, IAIA7,1310.5%−0.2 pts

60Tama County, IAIA16,7960.5%0.0 pts

61Grundy County, IAIA12,3610.5%−0.1 pts

62Howard County, IAIA9,4150.5%−0.5 pts

63Scott County, IAIA175,2590.5%−0.1 pts

64Pottawattamie County, IAIA92,9960.4%−0.7 pts

65Allamakee County, IAIA14,2380.4%+0.4 pts

66Dubuque County, IAIA99,3810.4%0.0 pts

67Boone County, IAIA26,7990.4%−1.5 pts

68Webster County, IAIA36,8380.4%0.0 pts

69Franklin County, IAIA9,8680.4%−0.1 pts

70Plymouth County, IAIA25,6970.4%−0.1 pts

71Woodbury County, IAIA106,6490.4%+0.1 pts

72Monona County, IAIA8,5390.4%0.0 pts

73Ida County, IAIA6,7770.4%0.0 pts

74Humboldt County, IAIA9,4090.4%+0.2 pts

75Jefferson County, IAIA15,2910.4%−0.1 pts

76Harrison County, IAIA14,6230.4%−0.5 pts

77Lee County, IAIA32,3060.4%0.0 pts

78Benton County, IAIA26,0040.4%−0.7 pts

79Poweshiek County, IAIA18,3680.3%−0.1 pts

80Clayton County, IAIA16,8450.3%−0.6 pts

81Palo Alto County, IAIA8,8990.3%+0.1 pts

82Kossuth County, IAIA14,3220.3%0.0 pts

83Bremer County, IAIA25,2960.3%−0.1 pts

84Hancock County, IAIA10,5280.3%0.0 pts

85Wayne County, IAIA6,7380.2%−1.6 pts

86Mitchell County, IAIA10,6500.2%+0.1 pts

87Crawford County, IAIA16,2370.2%−0.1 pts

88Chickasaw County, IAIA11,6630.2%−0.1 pts

89Butler County, IAIA14,0490.2%−0.2 pts

90Audubon County, IAIA5,5090.2%−0.5 pts

91Sac County, IAIA9,5250.2%−0.4 pts

92O'Brien County, IAIA14,2200.2%−0.2 pts

93Shelby County, IAIA11,6890.2%−0.1 pts

94Carroll County, IAIA20,3030.1%−0.3 pts

95Sioux County, IAIA36,7740.1%+0.1 pts

96Lyon County, IAIA12,3540.1%−0.2 pts

97Osceola County, IAIA5,9800.1%–

98Hamilton County, IAIA14,9440.1%−0.1 pts

99Floyd County, IAIA14,9010.0%−0.3 pts

SHOWING 1–99 OF 99

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