RANKING · 2010 CENSUS · 99 SHOWN OF 99

Highest French population share, Iowa counties · 2010

Iowa counties ranked by the share of all residents who are French ancestry (2023 American Community Survey). A concentration measure: French residents as a percentage of total population. This list covers the 99 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 SHAREVS 2000

01Adams County, IAIA3,6174.3%–

02Wright County, IAIA12,8014.2%–

03Lucas County, IAIA8,8474.0%–

04Mills County, IAIA14,7933.9%–

05Jones County, IAIA21,2533.9%–

06Des Moines County, IAIA38,0773.7%–

07Woodbury County, IAIA106,6493.7%–

08Warren County, IAIA57,3313.7%–

09Pocahontas County, IAIA6,8193.7%–

10Decatur County, IAIA7,6553.6%–

11Jefferson County, IAIA15,2913.5%–

12Clarke County, IAIA9,5743.5%–

13Keokuk County, IAIA9,7973.4%–

14Mahaska County, IAIA21,8803.4%–

15Hamilton County, IAIA14,9443.4%–

16Poweshiek County, IAIA18,3683.4%–

17Pottawattamie County, IAIA92,9963.3%–

18Clinton County, IAIA46,0023.3%–

19Linn County, IAIA232,0283.3%–

20Appanoose County, IAIA12,0773.2%–

21Henry County, IAIA19,3493.1%–

22Boone County, IAIA26,7993.1%–

23Monona County, IAIA8,5393.0%–

24Monroe County, IAIA7,4063.0%–

25Story County, IAIA101,2913.0%–

26Fremont County, IAIA6,5223.0%–

27Dubuque County, IAIA99,3813.0%–

28Cerro Gordo County, IAIA42,3722.9%–

29Plymouth County, IAIA25,6972.9%–

30Harrison County, IAIA14,6232.8%–

31Johnson County, IAIA160,0442.8%–

32Dickinson County, IAIA18,0772.7%–

33Emmet County, IAIA9,1072.7%–

34Clayton County, IAIA16,8452.7%–

35Webster County, IAIA36,8382.7%–

36Guthrie County, IAIA10,7822.7%–

37Dallas County, IAIA118,4572.7%–

38Marshall County, IAIA39,8902.7%–

39Osceola County, IAIA5,9802.6%–

40Scott County, IAIA175,2592.6%–

41Wayne County, IAIA6,7382.6%–

42Cherokee County, IAIA11,3692.6%–

43Muscatine County, IAIA41,8532.6%–

44Marion County, IAIA34,1922.6%–

45Floyd County, IAIA14,9012.6%–

46Iowa County, IAIA16,5042.6%–

47Jasper County, IAIA38,1532.6%–

48Fayette County, IAIA19,0472.6%–

49Black Hawk County, IAIA131,5322.6%–

50Page County, IAIA14,8562.6%–

51Wapello County, IAIA35,2102.5%–

52Sac County, IAIA9,5252.5%–

53Taylor County, IAIA5,8352.5%–

54Lee County, IAIA32,3062.5%–

55Madison County, IAIA17,2702.5%–

56Polk County, IAIA516,5462.5%–

57Buchanan County, IAIA20,8832.4%–

58Worth County, IAIA7,3382.4%–

59O'Brien County, IAIA14,2202.4%–

60Van Buren County, IAIA7,1312.4%–

61Calhoun County, IAIA9,5622.3%–

62Clay County, IAIA16,2022.3%–

63Union County, IAIA11,8292.3%–

64Adair County, IAIA7,4032.3%–

65Delaware County, IAIA17,6742.3%–

66Franklin County, IAIA9,8682.3%–

67Washington County, IAIA22,6672.3%–

68Greene County, IAIA8,6582.2%–

69Humboldt County, IAIA9,4092.2%–

70Montgomery County, IAIA10,0022.2%–

71Hancock County, IAIA10,5282.2%–

72Hardin County, IAIA16,4552.1%–

73Winneshiek County, IAIA19,7332.1%–

74Shelby County, IAIA11,6892.1%–

75Allamakee County, IAIA14,2382.1%–

76Benton County, IAIA26,0042.1%–

77Ringgold County, IAIA4,6422.1%–

78Davis County, IAIA9,2302.1%–

79Bremer County, IAIA25,2962.0%–

80Palo Alto County, IAIA8,8992.0%–

81Buena Vista County, IAIA20,4492.0%–

82Ida County, IAIA6,7772.0%–

83Winnebago County, IAIA10,2512.0%–

84Cass County, IAIA12,9602.0%–

85Louisa County, IAIA10,4161.9%–

86Mitchell County, IAIA10,6501.9%–

87Grundy County, IAIA12,3611.9%–

88Butler County, IAIA14,0491.9%–

89Kossuth County, IAIA14,3221.8%–

90Carroll County, IAIA20,3031.8%–

91Cedar County, IAIA18,3591.7%–

92Tama County, IAIA16,7961.6%–

93Jackson County, IAIA19,2881.6%–

94Howard County, IAIA9,4151.5%–

95Lyon County, IAIA12,3541.5%–

96Crawford County, IAIA16,2371.4%–

97Chickasaw County, IAIA11,6631.2%–

98Sioux County, IAIA36,7741.2%–

99Audubon County, IAIA5,5091.1%–

SHOWING 1–99 OF 99

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