RANKING · 2020 CENSUS · 96 SHOWN OF 96

Largest French Canadian population, Iowa counties · 2020

Iowa counties ranked by the number of residents who are French Canadian ancestry, from the 2020 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. This list covers the 96 counties in Iowa that qualify, ranked against each other statewide.

French Canadian Americans: full group profile →

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

RANKPLACESTATEPOPFRENCH CANADIAN POPULATIONVS 2010

01Polk County, IAIA516,5461,164+20%

02Johnson County, IAIA160,044628+44%

03Woodbury County, IAIA106,649515−49%

04Linn County, IAIA232,028500−28%

05Dubuque County, IAIA99,381342−17%

06Dallas County, IAIA118,457336+80%

07Black Hawk County, IAIA131,532318−20%

08Scott County, IAIA175,259273−48%

09Story County, IAIA101,291265+26%

10Pottawattamie County, IAIA92,996246−34%

11Des Moines County, IAIA38,077153+132%

12Monona County, IAIA8,539144+365%

13Clinton County, IAIA46,002139−39%

14Wapello County, IAIA35,210134+51%

15Henry County, IAIA19,349119−52%

16Cerro Gordo County, IAIA42,372106+54%

17Sioux County, IAIA36,77497−11%

18Benton County, IAIA26,00490−43%

19Warren County, IAIA57,33183+46%

20Jones County, IAIA21,25379+276%

21Van Buren County, IAIA7,13172+929%

22Winnebago County, IAIA10,25170+400%

23Clay County, IAIA16,20269+30%

24Dickinson County, IAIA18,07768−37%

25Guthrie County, IAIA10,78267+52%

26Allamakee County, IAIA14,23862+138%

27Plymouth County, IAIA25,69757−51%

28Page County, IAIA14,85655+67%

29Mahaska County, IAIA21,88054−27%

30Harrison County, IAIA14,62348+2%

31Iowa County, IAIA16,50447−33%

32Muscatine County, IAIA41,85346−54%

33Boone County, IAIA26,79944−75%

34Osceola County, IAIA5,98044+529%

35Pocahontas County, IAIA6,81944+340%

36Bremer County, IAIA25,29642−73%

37Clayton County, IAIA16,84541−45%

38Emmet County, IAIA9,10740−9%

39Jackson County, IAIA19,28840+233%

40Buena Vista County, IAIA20,44940−9%

41Poweshiek County, IAIA18,36840−47%

42Cedar County, IAIA18,35939+18%

43Fayette County, IAIA19,04739−28%

44Marshall County, IAIA39,89038−55%

45Tama County, IAIA16,79638−46%

46Lee County, IAIA32,30636−84%

47Fremont County, IAIA6,52235+67%

48Webster County, IAIA36,83834−66%

49Kossuth County, IAIA14,32234−23%

50Floyd County, IAIA14,90133−38%

51Clarke County, IAIA9,57433+94%

52Butler County, IAIA14,04932+52%

53Washington County, IAIA22,66732−20%

54Shelby County, IAIA11,68931−18%

55Appanoose County, IAIA12,07731–

56Delaware County, IAIA17,67424−74%

57Cass County, IAIA12,96023−63%

58Hardin County, IAIA16,45523−78%

59Hancock County, IAIA10,52822+38%

60Mills County, IAIA14,79322−54%

61Taylor County, IAIA5,83521+425%

62Calhoun County, IAIA9,56220−38%

63Jasper County, IAIA38,15320−76%

64Chickasaw County, IAIA11,66319+0%

65Grundy County, IAIA12,36118−42%

66Madison County, IAIA17,27018+50%

67Winneshiek County, IAIA19,73317−80%

68Wright County, IAIA12,80117−11%

69Carroll County, IAIA20,30315–

70Worth County, IAIA7,33815−12%

71Sac County, IAIA9,52514−26%

72O'Brien County, IAIA14,22014−81%

73Greene County, IAIA8,65813−55%

74Humboldt County, IAIA9,40913−81%

75Keokuk County, IAIA9,79713−83%

76Wayne County, IAIA6,73813−7%

77Franklin County, IAIA9,86812–

78Crawford County, IAIA16,23711−80%

79Jefferson County, IAIA15,29111−86%

80Adair County, IAIA7,40311−66%

81Decatur County, IAIA7,65510−67%

82Union County, IAIA11,82910−86%

83Hamilton County, IAIA14,9449+0%

84Howard County, IAIA9,4159−94%

85Ida County, IAIA6,7779−69%

86Ringgold County, IAIA4,6429–

87Lucas County, IAIA8,8478−80%

88Mitchell County, IAIA10,6507−71%

89Lyon County, IAIA12,3546−87%

90Buchanan County, IAIA20,8835−91%

91Palo Alto County, IAIA8,8995−38%

92Audubon County, IAIA5,5093−95%

93Montgomery County, IAIA10,0023−95%

94Cherokee County, IAIA11,3692−97%

95Adams County, IAIA3,6171–

96Louisa County, IAIA10,4161−96%

SHOWING 1–96 OF 96

Download CSV (full list, 96 rows)

UPDATED 2026-07-15 · DATA: US CENSUS BUREAU DECENNIAL CENSUS