RANKING · 2010 CENSUS · 95 SHOWN OF 95

Largest British population, Iowa counties · 2010

Iowa counties ranked by the number of residents who are British 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 95 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

RANKPLACESTATEPOPBRITISH POPULATIONVS 2000

01Polk County, IAIA516,5461,411–

02Linn County, IAIA232,028734–

03Johnson County, IAIA160,044650–

04Scott County, IAIA175,259448–

05Story County, IAIA101,291425–

06Pottawattamie County, IAIA92,996244–

07Black Hawk County, IAIA131,532225–

08Dallas County, IAIA118,457222–

09Washington County, IAIA22,667181–

10Marshall County, IAIA39,890147–

11Woodbury County, IAIA106,649138–

12Marion County, IAIA34,192122–

13Dubuque County, IAIA99,381105–

14Lucas County, IAIA8,847103–

15Warren County, IAIA57,331102–

16Des Moines County, IAIA38,07790–

17Fayette County, IAIA19,04789–

18Jones County, IAIA21,25388–

19Page County, IAIA14,85680–

20Dickinson County, IAIA18,07778–

21Boone County, IAIA26,79976–

22Madison County, IAIA17,27076–

23Lee County, IAIA32,30675–

24Plymouth County, IAIA25,69775–

25Delaware County, IAIA17,67471–

26Mahaska County, IAIA21,88071–

27Jefferson County, IAIA15,29164–

28Henry County, IAIA19,34963–

29Poweshiek County, IAIA18,36863–

30Benton County, IAIA26,00462–

31Hamilton County, IAIA14,94462–

32Mills County, IAIA14,79361–

33Sioux County, IAIA36,77454–

34Wright County, IAIA12,80152–

35Winneshiek County, IAIA19,73351–

36Jackson County, IAIA19,28847–

37Jasper County, IAIA38,15347–

38Muscatine County, IAIA41,85345–

39Cass County, IAIA12,96044–

40Cerro Gordo County, IAIA42,37243–

41Crawford County, IAIA16,23741–

42Pocahontas County, IAIA6,81941–

43Monona County, IAIA8,53940–

44Buchanan County, IAIA20,88338–

45Clinton County, IAIA46,00236–

46Kossuth County, IAIA14,32236–

47Iowa County, IAIA16,50435–

48Wapello County, IAIA35,21034–

49Cedar County, IAIA18,35933–

50Floyd County, IAIA14,90131–

51Greene County, IAIA8,65830–

52Mitchell County, IAIA10,65029–

53Fremont County, IAIA6,52228–

54Union County, IAIA11,82928–

55Bremer County, IAIA25,29626–

56Guthrie County, IAIA10,78226–

57Butler County, IAIA14,04924–

58Montgomery County, IAIA10,00224–

59Buena Vista County, IAIA20,44922–

60Chickasaw County, IAIA11,66322–

61Clarke County, IAIA9,57420–

62Keokuk County, IAIA9,79720–

63Webster County, IAIA36,83820–

64Monroe County, IAIA7,40617–

65Hardin County, IAIA16,45516–

66Sac County, IAIA9,52516–

67Ringgold County, IAIA4,64214–

68Adair County, IAIA7,40313–

69Decatur County, IAIA7,65513–

70Harrison County, IAIA14,62313–

71Howard County, IAIA9,41513–

72Adams County, IAIA3,61711–

73Shelby County, IAIA11,68911–

74Wayne County, IAIA6,73811–

75Clay County, IAIA16,20210–

76Grundy County, IAIA12,36110–

77Tama County, IAIA16,79610–

78Taylor County, IAIA5,83510–

79Franklin County, IAIA9,8689–

80Calhoun County, IAIA9,5628–

81Worth County, IAIA7,3388–

82Audubon County, IAIA5,5096–

83Clayton County, IAIA16,8456–

84Hancock County, IAIA10,5286–

85Lyon County, IAIA12,3546–

86Van Buren County, IAIA7,1316–

87Allamakee County, IAIA14,2385–

88Carroll County, IAIA20,3035–

89Cherokee County, IAIA11,3695–

90O'Brien County, IAIA14,2203–

91Osceola County, IAIA5,9803–

92Winnebago County, IAIA10,2513–

93Emmet County, IAIA9,1072–

94Ida County, IAIA6,7772–

95Palo Alto County, IAIA8,8992–

SHOWING 1–95 OF 95

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