RANKING · 2010 CENSUS · 99 SHOWN OF 99

Highest Swedish population share, Iowa counties · 2010

Iowa counties ranked by the share of all residents who are Swedish ancestry (2010 American Community Survey). A concentration measure: Swedish residents as a percentage of total population. This list covers the 99 counties in Iowa that qualify, ranked against each other statewide. The median across all 99 is 3.0%.

Swedish 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

RANKPLACESTATEPOPSWEDISH SHAREVS –

01Montgomery County, IAIA10,00215.6%–

02Boone County, IAIA26,79910.2%–

03Cherokee County, IAIA11,3699.6%–

04Pocahontas County, IAIA6,8199.1%–

05Page County, IAIA14,8568.9%–

06Webster County, IAIA36,8387.6%–

07Buena Vista County, IAIA20,4497.3%–

08Sac County, IAIA9,5256.8%–

09Hamilton County, IAIA14,9445.8%–

10Ida County, IAIA6,7775.8%–

11Calhoun County, IAIA9,5625.7%–

12Henry County, IAIA19,3495.6%–

13Kossuth County, IAIA14,3225.6%–

14Clay County, IAIA16,2025.4%–

15Dickinson County, IAIA18,0775.2%–

16Monroe County, IAIA7,4065.0%–

17Monona County, IAIA8,5394.7%–

18Poweshiek County, IAIA18,3684.6%–

19Des Moines County, IAIA38,0774.6%–

20Story County, IAIA101,2914.4%–

21Greene County, IAIA8,6584.3%–

22Guthrie County, IAIA10,7824.2%–

23Taylor County, IAIA5,8354.2%–

24Dallas County, IAIA118,4574.0%–

25Van Buren County, IAIA7,1314.0%–

26Harrison County, IAIA14,6233.9%–

27Fremont County, IAIA6,5223.9%–

28Warren County, IAIA57,3313.9%–

29Cass County, IAIA12,9603.7%–

30Woodbury County, IAIA106,6493.7%–

31Clarke County, IAIA9,5743.6%–

32Union County, IAIA11,8293.6%–

33Polk County, IAIA516,5463.4%–

34O'Brien County, IAIA14,2203.4%–

35Pottawattamie County, IAIA92,9963.4%–

36Louisa County, IAIA10,4163.4%–

37Lyon County, IAIA12,3543.3%–

38Worth County, IAIA7,3383.3%–

39Cerro Gordo County, IAIA42,3723.2%–

40Plymouth County, IAIA25,6973.2%–

41Lucas County, IAIA8,8473.2%–

42Winnebago County, IAIA10,2513.2%–

43Adams County, IAIA3,6173.2%–

44Humboldt County, IAIA9,4093.2%–

45Scott County, IAIA175,2593.2%–

46Johnson County, IAIA160,0443.1%–

47Appanoose County, IAIA12,0773.1%–

48Buchanan County, IAIA20,8833.1%–

49Wright County, IAIA12,8013.1%–

50Jefferson County, IAIA15,2913.0%–

51Lee County, IAIA32,3063.0%–

52Wapello County, IAIA35,2103.0%–

53Emmet County, IAIA9,1072.9%–

54Winneshiek County, IAIA19,7332.9%–

55Clinton County, IAIA46,0022.9%–

56Washington County, IAIA22,6672.9%–

57Hancock County, IAIA10,5282.8%–

58Benton County, IAIA26,0042.8%–

59Mills County, IAIA14,7932.7%–

60Palo Alto County, IAIA8,8992.7%–

61Crawford County, IAIA16,2372.6%–

62Madison County, IAIA17,2702.5%–

63Linn County, IAIA232,0282.5%–

64Keokuk County, IAIA9,7972.4%–

65Marion County, IAIA34,1922.3%–

66Black Hawk County, IAIA131,5322.2%–

67Jackson County, IAIA19,2882.2%–

68Davis County, IAIA9,2302.2%–

69Muscatine County, IAIA41,8532.2%–

70Floyd County, IAIA14,9012.1%–

71Mahaska County, IAIA21,8802.1%–

72Franklin County, IAIA9,8682.0%–

73Hardin County, IAIA16,4552.0%–

74Cedar County, IAIA18,3592.0%–

75Jasper County, IAIA38,1532.0%–

76Osceola County, IAIA5,9802.0%–

77Bremer County, IAIA25,2961.9%–

78Iowa County, IAIA16,5041.9%–

79Decatur County, IAIA7,6551.8%–

80Allamakee County, IAIA14,2381.8%–

81Carroll County, IAIA20,3031.8%–

82Jones County, IAIA21,2531.7%–

83Wayne County, IAIA6,7381.7%–

84Clayton County, IAIA16,8451.6%–

85Mitchell County, IAIA10,6501.6%–

86Ringgold County, IAIA4,6421.6%–

87Dubuque County, IAIA99,3811.5%–

88Fayette County, IAIA19,0471.5%–

89Audubon County, IAIA5,5091.5%–

90Adair County, IAIA7,4031.5%–

91Sioux County, IAIA36,7741.5%–

92Marshall County, IAIA39,8901.4%–

93Butler County, IAIA14,0491.4%–

94Delaware County, IAIA17,6741.3%–

95Shelby County, IAIA11,6891.2%–

96Grundy County, IAIA12,3611.2%–

97Chickasaw County, IAIA11,6631.0%–

98Tama County, IAIA16,7961.0%–

99Howard County, IAIA9,4150.8%–

SHOWING 1–99 OF 99

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU DECENNIAL CENSUS