RANKING · 2010 CENSUS · 99 SHOWN OF 99

Largest Norwegian population, Iowa counties · 2010

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, IAIA516,54621,282–

02Linn County, IAIA232,02811,083–

03Story County, IAIA101,2919,231–

04Black Hawk County, IAIA131,5327,571–

05Cerro Gordo County, IAIA42,3726,691–

06Winneshiek County, IAIA19,7336,334–

07Woodbury County, IAIA106,6496,021–

08Johnson County, IAIA160,0444,992–

09Winnebago County, IAIA10,2514,416–

10Scott County, IAIA175,2594,185–

11Webster County, IAIA36,8383,646–

12Dallas County, IAIA118,4573,327–

13Allamakee County, IAIA14,2383,176–

14Pottawattamie County, IAIA92,9962,792–

15Worth County, IAIA7,3382,685–

16Hamilton County, IAIA14,9442,600–

17Marshall County, IAIA39,8902,594–

18Wright County, IAIA12,8012,396–

19Fayette County, IAIA19,0472,387–

20Dubuque County, IAIA99,3812,238–

21Hancock County, IAIA10,5282,168–

22Howard County, IAIA9,4152,158–

23Warren County, IAIA57,3311,932–

24Kossuth County, IAIA14,3221,896–

25Boone County, IAIA26,7991,878–

26Hardin County, IAIA16,4551,873–

27Clayton County, IAIA16,8451,842–

28Emmet County, IAIA9,1071,744–

29Mitchell County, IAIA10,6501,640–

30Humboldt County, IAIA9,4091,602–

31Jasper County, IAIA38,1531,599–

32Dickinson County, IAIA18,0771,574–

33Clinton County, IAIA46,0021,439–

34Floyd County, IAIA14,9011,427–

35Bremer County, IAIA25,2961,423–

36Benton County, IAIA26,0041,315–

37Clay County, IAIA16,2021,289–

38Sioux County, IAIA36,7741,282–

39Plymouth County, IAIA25,6971,163–

40Buchanan County, IAIA20,8831,157–

41Lyon County, IAIA12,3541,088–

42Palo Alto County, IAIA8,8991,082–

43Marion County, IAIA34,1921,046–

44Chickasaw County, IAIA11,663979–

45Buena Vista County, IAIA20,449886–

46Monona County, IAIA8,539878–

47O'Brien County, IAIA14,220771–

48Poweshiek County, IAIA18,368736–

49Des Moines County, IAIA38,077734–

50Tama County, IAIA16,796712–

51Franklin County, IAIA9,868707–

52Crawford County, IAIA16,237703–

53Mahaska County, IAIA21,880701–

54Wapello County, IAIA35,210686–

55Muscatine County, IAIA41,853674–

56Cherokee County, IAIA11,369666–

57Washington County, IAIA22,667645–

58Cedar County, IAIA18,359640–

59Delaware County, IAIA17,674624–

60Butler County, IAIA14,049596–

61Mills County, IAIA14,793569–

62Iowa County, IAIA16,504563–

63Shelby County, IAIA11,689558–

64Grundy County, IAIA12,361557–

65Madison County, IAIA17,270549–

66Pocahontas County, IAIA6,819534–

67Jackson County, IAIA19,288532–

68Lee County, IAIA32,306529–

69Harrison County, IAIA14,623516–

70Carroll County, IAIA20,303512–

71Calhoun County, IAIA9,562499–

72Sac County, IAIA9,525466–

73Henry County, IAIA19,349406–

74Cass County, IAIA12,960386–

75Osceola County, IAIA5,980374–

76Guthrie County, IAIA10,782372–

77Jones County, IAIA21,253366–

78Montgomery County, IAIA10,002327–

79Greene County, IAIA8,658319–

80Ida County, IAIA6,777301–

81Davis County, IAIA9,230294–

82Keokuk County, IAIA9,797264–

83Clarke County, IAIA9,574241–

84Lucas County, IAIA8,847234–

85Adair County, IAIA7,403229–

86Page County, IAIA14,856224–

87Jefferson County, IAIA15,291221–

88Decatur County, IAIA7,655191–

89Union County, IAIA11,829171–

90Louisa County, IAIA10,416169–

91Audubon County, IAIA5,509155–

92Ringgold County, IAIA4,642116–

93Fremont County, IAIA6,522101–

94Wayne County, IAIA6,738101–

95Appanoose County, IAIA12,07794–

96Adams County, IAIA3,61793–

97Monroe County, IAIA7,40659–

98Taylor County, IAIA5,83556–

99Van Buren County, IAIA7,13135–

SHOWING 1–99 OF 99

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