RANKING · 2024 ACS · 94 SHOWN OF 94

Highest British population share, Iowa counties

Iowa counties ranked by the share of all residents who are British ancestry (2024 American Community Survey). A concentration measure: British residents as a percentage of total population. This list covers the 94 counties in Iowa that qualify, ranked against each other statewide. The median across all 94 is 0.2%. Biggest climber in the top 100 since 2020: Van Buren County, IA, up 75 places to #15.

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IowaAll states All rankings

SAME RANKING BYCities States Metros

YEAR2010 2020 2024

RANKPLACESTATEPOPBRITISH SHAREVS 2010

01▲16Greene County, IAIA8,6580.9%+0.6 pts

02▼1Jefferson County, IAIA15,2910.7%+0.4 pts

03▲3Story County, IAIA101,2910.7%+0.2 pts

04▲29Des Moines County, IAIA38,0770.6%+0.3 pts

05▲72Clarke County, IAIA9,5740.6%+0.3 pts

06▲9Poweshiek County, IAIA18,3680.5%+0.2 pts

07▲3Madison County, IAIA17,2700.5%0.0 pts

08▲17Benton County, IAIA26,0040.5%+0.3 pts

09▲25Lucas County, IAIA8,8470.5%−0.6 pts

10▼2Emmet County, IAIA9,1070.5%+0.4 pts

11▲27Cedar County, IAIA18,3590.5%+0.3 pts

12▲1Linn County, IAIA232,0280.5%+0.1 pts

13▼11Wapello County, IAIA35,2100.4%+0.3 pts

14▲7Polk County, IAIA516,5460.4%+0.1 pts

15▲75Van Buren County, IAIA7,1310.4%+0.3 pts

16▼2Johnson County, IAIA160,0440.4%−0.1 pts

17▲49Clay County, IAIA16,2020.4%+0.3 pts

18▲53Franklin County, IAIA9,8680.4%+0.3 pts

19▲20Washington County, IAIA22,6670.4%−0.5 pts

20▲47Cerro Gordo County, IAIA42,3720.3%+0.2 pts

21▲74Howard County, IAIA9,4150.3%+0.2 pts

22▼19Marion County, IAIA34,1920.3%0.0 pts

23▲28Harrison County, IAIA14,6230.3%+0.2 pts

24▼12Muscatine County, IAIA41,8530.3%+0.2 pts

25▲36Butler County, IAIA14,0490.3%+0.2 pts

26▲10Marshall County, IAIA39,8900.3%0.0 pts

27▲35Pottawattamie County, IAIA92,9960.3%+0.1 pts

28▲60Louisa County, IAIA10,4160.3%–

29▲31Webster County, IAIA36,8380.3%+0.3 pts

30▲17Bremer County, IAIA25,2960.3%+0.2 pts

31▼22Warren County, IAIA57,3310.3%+0.1 pts

32▼10Fremont County, IAIA6,5220.3%−0.1 pts

33▲31Jasper County, IAIA38,1530.3%+0.2 pts

34▲58Buena Vista County, IAIA20,4490.3%+0.2 pts

35▲21Cass County, IAIA12,9600.3%0.0 pts

36▲32Carroll County, IAIA20,3030.3%+0.2 pts

37▲20Mills County, IAIA14,7930.3%−0.1 pts

38▼31Boone County, IAIA26,7990.2%0.0 pts

39▼28Montgomery County, IAIA10,0020.2%0.0 pts

40▲35Dickinson County, IAIA18,0770.2%−0.2 pts

41▼17Sac County, IAIA9,5250.2%+0.1 pts

42▼24Scott County, IAIA175,2590.2%0.0 pts

43▼8Cherokee County, IAIA11,3690.2%+0.2 pts

44▼4Wayne County, IAIA6,7380.2%+0.1 pts

45▲49Crawford County, IAIA16,2370.2%0.0 pts

46▼3Clayton County, IAIA16,8450.2%+0.2 pts

47▲37Shelby County, IAIA11,6890.2%+0.1 pts

48▼7Black Hawk County, IAIA131,5320.2%0.0 pts

49▼23Lee County, IAIA32,3060.2%0.0 pts

50▲24Lyon County, IAIA12,3540.2%+0.1 pts

51▼28Monroe County, IAIA7,4060.2%0.0 pts

52▼24Woodbury County, IAIA106,6490.2%0.0 pts

53▲45Mitchell County, IAIA10,6500.2%−0.1 pts

54▼50Union County, IAIA11,8290.2%−0.1 pts

55▼5Clinton County, IAIA46,0020.2%+0.1 pts

56▼37Wright County, IAIA12,8010.2%−0.2 pts

57▲21Grundy County, IAIA12,3610.2%+0.1 pts

58▲18Appanoose County, IAIA12,0770.2%–

59▼13Tama County, IAIA16,7960.2%+0.1 pts

60▼55Dallas County, IAIA118,4570.2%−0.2 pts

61▼13Dubuque County, IAIA99,3810.2%0.0 pts

62▲17Plymouth County, IAIA25,6970.1%−0.2 pts

63▲28Floyd County, IAIA14,9010.1%0.0 pts

64▼34Winnebago County, IAIA10,2510.1%+0.1 pts

65▲4Guthrie County, IAIA10,7820.1%−0.1 pts

66▼14Henry County, IAIA19,3490.1%−0.2 pts

67▲14Chickasaw County, IAIA11,6630.1%−0.1 pts

68▼48Decatur County, IAIA7,6550.1%0.0 pts

69▼32Winneshiek County, IAIA19,7330.1%−0.1 pts

70▼15Iowa County, IAIA16,5040.1%−0.1 pts

71▼44Audubon County, IAIA5,5090.1%0.0 pts

72▲17Buchanan County, IAIA20,8830.1%−0.1 pts

73▲10Page County, IAIA14,8560.1%−0.4 pts

74▼32Sioux County, IAIA36,7740.1%−0.1 pts

75▼16Kossuth County, IAIA14,3220.1%−0.1 pts

76▼6Monona County, IAIA8,5390.1%−0.3 pts

77▼48Taylor County, IAIA5,8350.1%−0.1 pts

78▼33Hardin County, IAIA16,4550.1%0.0 pts

79▼63Hamilton County, IAIA14,9440.1%−0.3 pts

80▼22Mahaska County, IAIA21,8800.1%−0.2 pts

81▼8Worth County, IAIA7,3380.1%0.0 pts

82▲14O'Brien County, IAIA14,2200.1%0.0 pts

83▲14Osceola County, IAIA5,9800.0%0.0 pts

84▲1Jones County, IAIA21,2530.0%−0.4 pts

85▼3Ida County, IAIA6,7770.0%0.0 pts

86▼33Pocahontas County, IAIA6,8190.0%−0.5 pts

87▼33Jackson County, IAIA19,2880.0%−0.2 pts

88▼25Calhoun County, IAIA9,5620.0%0.0 pts

89▼45Adair County, IAIA7,4030.0%−0.1 pts

90▼3Humboldt County, IAIA9,4090.0%–

91▼26Fayette County, IAIA19,0470.0%−0.4 pts

92▼12Ringgold County, IAIA4,6420.0%−0.2 pts

93Palo Alto County, IAIA8,8990.0%0.0 pts

94Allamakee County, IAIA14,2380.0%0.0 pts

SHOWING 1–94 OF 94

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