RANKING · 2020 CENSUS · 99 SHOWN OF 99

Highest Swedish population share, Iowa counties · 2020

Iowa counties ranked by the share of all residents who are Swedish ancestry (2023 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.

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 2000

01Montgomery County, IAIA10,00210.1%–

02Cherokee County, IAIA11,3697.4%–

03Boone County, IAIA26,7996.1%–

04Pocahontas County, IAIA6,8195.8%–

05Page County, IAIA14,8565.7%–

06Calhoun County, IAIA9,5625.5%–

07Union County, IAIA11,8295.1%–

08Webster County, IAIA36,8384.8%–

09Ida County, IAIA6,7774.4%–

10Buena Vista County, IAIA20,4494.4%–

11Dickinson County, IAIA18,0774.4%–

12Mills County, IAIA14,7933.9%–

13Sac County, IAIA9,5253.7%–

14Hamilton County, IAIA14,9443.7%–

15Lucas County, IAIA8,8473.5%–

16Des Moines County, IAIA38,0773.5%–

17Jefferson County, IAIA15,2913.5%–

18Palo Alto County, IAIA8,8993.4%–

19Guthrie County, IAIA10,7823.2%–

20Henry County, IAIA19,3493.2%–

21Benton County, IAIA26,0043.0%–

22Scott County, IAIA175,2593.0%–

23Clay County, IAIA16,2023.0%–

24Humboldt County, IAIA9,4092.9%–

25Cedar County, IAIA18,3592.9%–

26Dallas County, IAIA118,4572.9%–

27Story County, IAIA101,2912.8%–

28Greene County, IAIA8,6582.8%–

29Plymouth County, IAIA25,6972.8%–

30Johnson County, IAIA160,0442.7%–

31Woodbury County, IAIA106,6492.7%–

32Polk County, IAIA516,5462.7%–

33Adams County, IAIA3,6172.7%–

34Winneshiek County, IAIA19,7332.7%–

35Winnebago County, IAIA10,2512.6%–

36Monroe County, IAIA7,4062.5%–

37Clinton County, IAIA46,0022.5%–

38Floyd County, IAIA14,9012.5%–

39Cass County, IAIA12,9602.5%–

40Linn County, IAIA232,0282.5%–

41Ringgold County, IAIA4,6422.4%–

42Cerro Gordo County, IAIA42,3722.4%–

43Lee County, IAIA32,3062.4%–

44Taylor County, IAIA5,8352.4%–

45Kossuth County, IAIA14,3222.3%–

46Emmet County, IAIA9,1072.3%–

47Warren County, IAIA57,3312.3%–

48Harrison County, IAIA14,6232.3%–

49Shelby County, IAIA11,6892.3%–

50Wapello County, IAIA35,2102.2%–

51Louisa County, IAIA10,4162.2%–

52O'Brien County, IAIA14,2202.2%–

53Van Buren County, IAIA7,1312.2%–

54Pottawattamie County, IAIA92,9962.1%–

55Marion County, IAIA34,1922.1%–

56Fremont County, IAIA6,5222.1%–

57Hancock County, IAIA10,5282.1%–

58Washington County, IAIA22,6671.9%–

59Keokuk County, IAIA9,7971.9%–

60Monona County, IAIA8,5391.9%–

61Adair County, IAIA7,4031.8%–

62Sioux County, IAIA36,7741.8%–

63Jones County, IAIA21,2531.8%–

64Crawford County, IAIA16,2371.8%–

65Madison County, IAIA17,2701.8%–

66Jasper County, IAIA38,1531.7%–

67Black Hawk County, IAIA131,5321.7%–

68Jackson County, IAIA19,2881.7%–

69Poweshiek County, IAIA18,3681.6%–

70Mitchell County, IAIA10,6501.6%–

71Mahaska County, IAIA21,8801.6%–

72Lyon County, IAIA12,3541.5%–

73Carroll County, IAIA20,3031.5%–

74Grundy County, IAIA12,3611.5%–

75Audubon County, IAIA5,5091.5%–

76Bremer County, IAIA25,2961.5%–

77Decatur County, IAIA7,6551.5%–

78Hardin County, IAIA16,4551.5%–

79Wright County, IAIA12,8011.5%–

80Delaware County, IAIA17,6741.4%–

81Muscatine County, IAIA41,8531.4%–

82Tama County, IAIA16,7961.3%–

83Worth County, IAIA7,3381.3%–

84Clayton County, IAIA16,8451.2%–

85Appanoose County, IAIA12,0771.2%–

86Wayne County, IAIA6,7381.2%–

87Butler County, IAIA14,0491.2%–

88Dubuque County, IAIA99,3811.1%–

89Iowa County, IAIA16,5041.1%–

90Davis County, IAIA9,2301.0%–

91Franklin County, IAIA9,8681.0%–

92Marshall County, IAIA39,8901.0%–

93Fayette County, IAIA19,0471.0%–

94Osceola County, IAIA5,9801.0%–

95Buchanan County, IAIA20,8830.9%–

96Chickasaw County, IAIA11,6630.9%–

97Allamakee County, IAIA14,2380.7%–

98Clarke County, IAIA9,5740.6%–

99Howard County, IAIA9,4150.5%–

SHOWING 1–99 OF 99

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