RANKING · 2010 CENSUS · 94 SHOWN OF 94

Highest French Canadian population share, Iowa counties · 2010

Iowa counties ranked by the share of all residents who are French Canadian ancestry (2023 American Community Survey). A concentration measure: French Canadian residents as a percentage of total population. This list covers the 94 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

RANKPLACESTATEPOPFRENCH CANADIAN SHAREVS 2000

01Howard County, IAIA9,4151.6%–

02Henry County, IAIA19,3491.2%–

03Woodbury County, IAIA106,6491.0%–

04Audubon County, IAIA5,5090.9%–

05Keokuk County, IAIA9,7970.7%–

06Humboldt County, IAIA9,4090.7%–

07Boone County, IAIA26,7990.7%–

08Dickinson County, IAIA18,0770.6%–

09Bremer County, IAIA25,2960.6%–

10Lee County, IAIA32,3060.6%–

11Benton County, IAIA26,0040.6%–

12Hardin County, IAIA16,4550.6%–

13Cherokee County, IAIA11,3690.6%–

14Union County, IAIA11,8290.6%–

15Delaware County, IAIA17,6740.5%–

16Montgomery County, IAIA10,0020.5%–

17O'Brien County, IAIA14,2200.5%–

18Jefferson County, IAIA15,2910.5%–

19Plymouth County, IAIA25,6970.5%–

20Clinton County, IAIA46,0020.5%–

21Cass County, IAIA12,9600.5%–

22Lucas County, IAIA8,8470.4%–

23Dubuque County, IAIA99,3810.4%–

24Iowa County, IAIA16,5040.4%–

25Emmet County, IAIA9,1070.4%–

26Winneshiek County, IAIA19,7330.4%–

27Adair County, IAIA7,4030.4%–

28Clayton County, IAIA16,8450.4%–

29Ida County, IAIA6,7770.4%–

30Pottawattamie County, IAIA92,9960.4%–

31Guthrie County, IAIA10,7820.4%–

32Lyon County, IAIA12,3540.4%–

33Tama County, IAIA16,7960.4%–

34Poweshiek County, IAIA18,3680.4%–

35Decatur County, IAIA7,6550.4%–

36Johnson County, IAIA160,0440.3%–

37Linn County, IAIA232,0280.3%–

38Monona County, IAIA8,5390.3%–

39Mahaska County, IAIA21,8800.3%–

40Crawford County, IAIA16,2370.3%–

41Sioux County, IAIA36,7740.3%–

42Calhoun County, IAIA9,5620.3%–

43Floyd County, IAIA14,9010.3%–

44Scott County, IAIA175,2590.3%–

45Clay County, IAIA16,2020.3%–

46Mills County, IAIA14,7930.3%–

47Harrison County, IAIA14,6230.3%–

48Shelby County, IAIA11,6890.3%–

49Black Hawk County, IAIA131,5320.3%–

50Greene County, IAIA8,6580.3%–

51Dallas County, IAIA118,4570.3%–

52Davis County, IAIA9,2300.3%–

53Kossuth County, IAIA14,3220.3%–

54Fremont County, IAIA6,5220.3%–

55Buchanan County, IAIA20,8830.3%–

56Webster County, IAIA36,8380.3%–

57Fayette County, IAIA19,0470.3%–

58Wapello County, IAIA35,2100.3%–

59Grundy County, IAIA12,3610.2%–

60Story County, IAIA101,2910.2%–

61Louisa County, IAIA10,4160.2%–

62Muscatine County, IAIA41,8530.2%–

63Polk County, IAIA516,5460.2%–

64Jasper County, IAIA38,1530.2%–

65Worth County, IAIA7,3380.2%–

66Mitchell County, IAIA10,6500.2%–

67Marion County, IAIA34,1920.2%–

68Buena Vista County, IAIA20,4490.2%–

69Wayne County, IAIA6,7380.2%–

70Marshall County, IAIA39,8900.2%–

71Page County, IAIA14,8560.2%–

72Washington County, IAIA22,6670.2%–

73Clarke County, IAIA9,5740.2%–

74Allamakee County, IAIA14,2380.2%–

75Sac County, IAIA9,5250.2%–

76Cedar County, IAIA18,3590.2%–

77Des Moines County, IAIA38,0770.2%–

78Cerro Gordo County, IAIA42,3720.2%–

79Chickasaw County, IAIA11,6630.2%–

80Wright County, IAIA12,8010.1%–

81Butler County, IAIA14,0490.1%–

82Hancock County, IAIA10,5280.1%–

83Pocahontas County, IAIA6,8190.1%–

84Winnebago County, IAIA10,2510.1%–

85Warren County, IAIA57,3310.1%–

86Osceola County, IAIA5,9800.1%–

87Jones County, IAIA21,2530.1%–

88Monroe County, IAIA7,4060.1%–

89Van Buren County, IAIA7,1310.1%–

90Palo Alto County, IAIA8,8990.1%–

91Madison County, IAIA17,2700.1%–

92Taylor County, IAIA5,8350.1%–

93Jackson County, IAIA19,2880.1%–

94Hamilton County, IAIA14,9440.1%–

SHOWING 1–94 OF 94

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