RANKING · 2020 CENSUS · 96 SHOWN OF 96

Highest French Canadian population share, Iowa counties · 2020

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 96 counties in Iowa that qualify, ranked against each other statewide.

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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

01Monona County, IAIA8,5391.7%–

02Van Buren County, IAIA7,1311.0%–

03Osceola County, IAIA5,9800.7%–

04Winnebago County, IAIA10,2510.7%–

05Pocahontas County, IAIA6,8190.7%–

06Guthrie County, IAIA10,7820.6%–

07Henry County, IAIA19,3490.6%–

08Fremont County, IAIA6,5220.5%–

09Woodbury County, IAIA106,6490.5%–

10Allamakee County, IAIA14,2380.5%–

11Emmet County, IAIA9,1070.4%–

12Clay County, IAIA16,2020.4%–

13Johnson County, IAIA160,0440.4%–

14Dickinson County, IAIA18,0770.4%–

15Des Moines County, IAIA38,0770.4%–

16Jones County, IAIA21,2530.4%–

17Wapello County, IAIA35,2100.4%–

18Dallas County, IAIA118,4570.4%–

19Page County, IAIA14,8560.4%–

20Benton County, IAIA26,0040.4%–

21Dubuque County, IAIA99,3810.4%–

22Clarke County, IAIA9,5740.4%–

23Harrison County, IAIA14,6230.3%–

24Taylor County, IAIA5,8350.3%–

25Clinton County, IAIA46,0020.3%–

26Iowa County, IAIA16,5040.3%–

27Sioux County, IAIA36,7740.3%–

28Story County, IAIA101,2910.3%–

29Shelby County, IAIA11,6890.3%–

30Pottawattamie County, IAIA92,9960.3%–

31Appanoose County, IAIA12,0770.2%–

32Cerro Gordo County, IAIA42,3720.2%–

33Mahaska County, IAIA21,8800.2%–

34Black Hawk County, IAIA131,5320.2%–

35Polk County, IAIA516,5460.2%–

36Clayton County, IAIA16,8450.2%–

37Kossuth County, IAIA14,3220.2%–

38Plymouth County, IAIA25,6970.2%–

39Tama County, IAIA16,7960.2%–

40Linn County, IAIA232,0280.2%–

41Butler County, IAIA14,0490.2%–

42Poweshiek County, IAIA18,3680.2%–

43Cedar County, IAIA18,3590.2%–

44Floyd County, IAIA14,9010.2%–

45Calhoun County, IAIA9,5620.2%–

46Jackson County, IAIA19,2880.2%–

47Hancock County, IAIA10,5280.2%–

48Wayne County, IAIA6,7380.2%–

49Worth County, IAIA7,3380.2%–

50Buena Vista County, IAIA20,4490.2%–

51Fayette County, IAIA19,0470.2%–

52Ringgold County, IAIA4,6420.2%–

53Cass County, IAIA12,9600.2%–

54Bremer County, IAIA25,2960.2%–

55Boone County, IAIA26,7990.2%–

56Warren County, IAIA57,3310.2%–

57Chickasaw County, IAIA11,6630.2%–

58Scott County, IAIA175,2590.2%–

59Adair County, IAIA7,4030.2%–

60Grundy County, IAIA12,3610.1%–

61Mills County, IAIA14,7930.1%–

62Greene County, IAIA8,6580.1%–

63Washington County, IAIA22,6670.1%–

64Sac County, IAIA9,5250.1%–

65Delaware County, IAIA17,6740.1%–

66Humboldt County, IAIA9,4090.1%–

67Hardin County, IAIA16,4550.1%–

68Wright County, IAIA12,8010.1%–

69Ida County, IAIA6,7770.1%–

70Keokuk County, IAIA9,7970.1%–

71Decatur County, IAIA7,6550.1%–

72Franklin County, IAIA9,8680.1%–

73Madison County, IAIA17,2700.1%–

74Muscatine County, IAIA41,8530.1%–

75Lee County, IAIA32,3060.1%–

76O'Brien County, IAIA14,2200.1%–

77Howard County, IAIA9,4150.1%–

78Marshall County, IAIA39,8900.1%–

79Webster County, IAIA36,8380.1%–

80Lucas County, IAIA8,8470.1%–

81Winneshiek County, IAIA19,7330.1%–

82Union County, IAIA11,8290.1%–

83Carroll County, IAIA20,3030.1%–

84Mitchell County, IAIA10,6500.1%–

85Crawford County, IAIA16,2370.1%–

86Jefferson County, IAIA15,2910.1%–

87Hamilton County, IAIA14,9440.1%–

88Palo Alto County, IAIA8,8990.1%–

89Audubon County, IAIA5,5090.1%–

90Jasper County, IAIA38,1530.1%–

91Lyon County, IAIA12,3540.1%–

92Montgomery County, IAIA10,0020.0%–

93Adams County, IAIA3,6170.0%–

94Buchanan County, IAIA20,8830.0%–

95Cherokee County, IAIA11,3690.0%–

96Louisa County, IAIA10,4160.0%–

SHOWING 1–96 OF 96

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