RANKING · 2020 CENSUS · 99 SHOWN OF 99

Largest Norwegian population, Iowa counties · 2020

Iowa counties ranked by the number of residents who are Norwegian ancestry, from the 2023 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. 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

RANKPLACESTATEPOPNORWEGIAN POPULATIONVS 2000

01Polk County, IAIA516,54620,568–

02Story County, IAIA101,2919,220–

03Linn County, IAIA232,0289,005–

04Johnson County, IAIA160,0446,852–

05Black Hawk County, IAIA131,5325,935–

06Cerro Gordo County, IAIA42,3725,721–

07Winneshiek County, IAIA19,7335,357–

08Woodbury County, IAIA106,6494,236–

09Dallas County, IAIA118,4574,225–

10Scott County, IAIA175,2593,508–

11Winnebago County, IAIA10,2513,384–

12Dubuque County, IAIA99,3812,679–

13Webster County, IAIA36,8382,643–

14Allamakee County, IAIA14,2382,462–

15Worth County, IAIA7,3382,113–

16Pottawattamie County, IAIA92,9962,070–

17Boone County, IAIA26,7992,059–

18Fayette County, IAIA19,0471,903–

19Hamilton County, IAIA14,9441,847–

20Warren County, IAIA57,3311,749–

21Wright County, IAIA12,8011,727–

22Howard County, IAIA9,4151,597–

23Clay County, IAIA16,2021,580–

24Marshall County, IAIA39,8901,535–

25Bremer County, IAIA25,2961,531–

26Mitchell County, IAIA10,6501,499–

27Hancock County, IAIA10,5281,480–

28Dickinson County, IAIA18,0771,461–

29Humboldt County, IAIA9,4091,445–

30Clayton County, IAIA16,8451,401–

31Kossuth County, IAIA14,3221,292–

32Hardin County, IAIA16,4551,262–

33Emmet County, IAIA9,1071,238–

34Benton County, IAIA26,0041,235–

35Clinton County, IAIA46,0021,149–

36O'Brien County, IAIA14,2201,078–

37Plymouth County, IAIA25,6971,063–

38Palo Alto County, IAIA8,8991,028–

39Floyd County, IAIA14,901990–

40Marion County, IAIA34,192971–

41Jasper County, IAIA38,153970–

42Buchanan County, IAIA20,883902–

43Sioux County, IAIA36,774901–

44Chickasaw County, IAIA11,663885–

45Muscatine County, IAIA41,853797–

46Buena Vista County, IAIA20,449752–

47Jefferson County, IAIA15,291693–

48Monona County, IAIA8,539688–

49Poweshiek County, IAIA18,368653–

50Des Moines County, IAIA38,077601–

51Iowa County, IAIA16,504588–

52Mahaska County, IAIA21,880564–

53Mills County, IAIA14,793528–

54Tama County, IAIA16,796522–

55Washington County, IAIA22,667515–

56Madison County, IAIA17,270515–

57Henry County, IAIA19,349513–

58Carroll County, IAIA20,303507–

59Lyon County, IAIA12,354502–

60Franklin County, IAIA9,868500–

61Crawford County, IAIA16,237494–

62Butler County, IAIA14,049493–

63Lee County, IAIA32,306471–

64Wapello County, IAIA35,210455–

65Cedar County, IAIA18,359429–

66Grundy County, IAIA12,361413–

67Shelby County, IAIA11,689399–

68Guthrie County, IAIA10,782398–

69Jones County, IAIA21,253380–

70Jackson County, IAIA19,288352–

71Calhoun County, IAIA9,562347–

72Harrison County, IAIA14,623346–

73Pocahontas County, IAIA6,819310–

74Page County, IAIA14,856301–

75Union County, IAIA11,829299–

76Cherokee County, IAIA11,369283–

77Decatur County, IAIA7,655271–

78Osceola County, IAIA5,980271–

79Sac County, IAIA9,525266–

80Delaware County, IAIA17,674265–

81Lucas County, IAIA8,847254–

82Greene County, IAIA8,658249–

83Montgomery County, IAIA10,002247–

84Cass County, IAIA12,960220–

85Ida County, IAIA6,777215–

86Appanoose County, IAIA12,077215–

87Clarke County, IAIA9,574199–

88Louisa County, IAIA10,416173–

89Wayne County, IAIA6,738158–

90Keokuk County, IAIA9,797142–

91Adair County, IAIA7,403107–

92Fremont County, IAIA6,522104–

93Audubon County, IAIA5,509103–

94Davis County, IAIA9,23098–

95Adams County, IAIA3,61794–

96Taylor County, IAIA5,83576–

97Monroe County, IAIA7,40670–

98Van Buren County, IAIA7,13154–

99Ringgold County, IAIA4,64251–

SHOWING 1–99 OF 99

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