RANKING · 1990 CENSUS · 99 SHOWN OF 99

Highest Asian population share, Iowa counties · 1990

Iowa counties ranked by the share of all residents who are Asian (1990 American Community Survey). A concentration measure: Asian 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 0.3%.

IowaAll states All rankings

SAME RANKING BYCities States Metros ZIP codes

RELATEDHighest Asian household income Highest Black household income Highest Hispanic household income Highest White (non-Hispanic) household income Largest White (non-Hispanic) population Highest White (non-Hispanic) population share

YEAR1990 2000 2010 2020 2024

RANKPLACESTATEPOPASIANVS –

01Story County, IAIA101,2914.5%–

02Johnson County, IAIA160,0443.9%–

03Buena Vista County, IAIA20,4491.9%–

04Polk County, IAIA516,5461.7%–

05Woodbury County, IAIA106,6491.3%–

06Winnebago County, IAIA10,2511.1%–

07Henry County, IAIA19,3491.1%–

08Winneshiek County, IAIA19,7331.0%–

09Linn County, IAIA232,0280.9%–

10Scott County, IAIA175,2590.8%–

11Black Hawk County, IAIA131,5320.8%–

12Marshall County, IAIA39,8900.8%–

13Marion County, IAIA34,1920.8%–

14Poweshiek County, IAIA18,3680.8%–

15Ringgold County, IAIA4,6420.7%–

16Sioux County, IAIA36,7740.6%–

17Cerro Gordo County, IAIA42,3720.6%–

18Jefferson County, IAIA15,2910.6%–

19Crawford County, IAIA16,2370.6%–

20Tama County, IAIA16,7960.5%–

21Dubuque County, IAIA99,3810.5%–

22O'Brien County, IAIA14,2200.5%–

23Des Moines County, IAIA38,0770.5%–

24Jasper County, IAIA38,1530.5%–

25Hamilton County, IAIA14,9440.5%–

26Boone County, IAIA26,7990.5%–

27Clarke County, IAIA9,5740.4%–

28Muscatine County, IAIA41,8530.4%–

29Webster County, IAIA36,8380.4%–

30Bremer County, IAIA25,2960.4%–

31Wapello County, IAIA35,2100.4%–

32Decatur County, IAIA7,6550.4%–

33Greene County, IAIA8,6580.4%–

34Lyon County, IAIA12,3540.4%–

35Monona County, IAIA8,5390.4%–

36Union County, IAIA11,8290.4%–

37Pocahontas County, IAIA6,8190.4%–

38Mahaska County, IAIA21,8800.4%–

39Louisa County, IAIA10,4160.4%–

40Appanoose County, IAIA12,0770.3%–

41Adair County, IAIA7,4030.3%–

42Warren County, IAIA57,3310.3%–

43Taylor County, IAIA5,8350.3%–

44Benton County, IAIA26,0040.3%–

45Monroe County, IAIA7,4060.3%–

46Fayette County, IAIA19,0470.3%–

47Hardin County, IAIA16,4550.3%–

48Wayne County, IAIA6,7380.3%–

49Clinton County, IAIA46,0020.3%–

50Floyd County, IAIA14,9010.3%–

51Humboldt County, IAIA9,4090.3%–

52Lee County, IAIA32,3060.3%–

53Pottawattamie County, IAIA92,9960.3%–

54Calhoun County, IAIA9,5620.3%–

55Cherokee County, IAIA11,3690.3%–

56Osceola County, IAIA5,9800.3%–

57Keokuk County, IAIA9,7970.3%–

58Audubon County, IAIA5,5090.2%–

59Ida County, IAIA6,7770.2%–

60Delaware County, IAIA17,6740.2%–

61Clayton County, IAIA16,8450.2%–

62Iowa County, IAIA16,5040.2%–

63Emmet County, IAIA9,1070.2%–

64Cedar County, IAIA18,3590.2%–

65Dickinson County, IAIA18,0770.2%–

66Hancock County, IAIA10,5280.2%–

67Washington County, IAIA22,6670.2%–

68Sac County, IAIA9,5250.2%–

69Harrison County, IAIA14,6230.2%–

70Kossuth County, IAIA14,3220.2%–

71Grundy County, IAIA12,3610.2%–

72Carroll County, IAIA20,3030.2%–

73Howard County, IAIA9,4150.2%–

74Butler County, IAIA14,0490.2%–

75Worth County, IAIA7,3380.2%–

76Page County, IAIA14,8560.1%–

77Dallas County, IAIA118,4570.1%–

78Fremont County, IAIA6,5220.1%–

79Wright County, IAIA12,8010.1%–

80Lucas County, IAIA8,8470.1%–

81Adams County, IAIA3,6170.1%–

82Mills County, IAIA14,7930.1%–

83Jackson County, IAIA19,2880.1%–

84Clay County, IAIA16,2020.1%–

85Shelby County, IAIA11,6890.1%–

86Palo Alto County, IAIA8,8990.1%–

87Madison County, IAIA17,2700.1%–

88Allamakee County, IAIA14,2380.1%–

89Jones County, IAIA21,2530.1%–

90Mitchell County, IAIA10,6500.1%–

91Guthrie County, IAIA10,7820.1%–

92Plymouth County, IAIA25,6970.0%–

93Buchanan County, IAIA20,8830.0%–

94Cass County, IAIA12,9600.0%–

95Van Buren County, IAIA7,1310.0%–

96Chickasaw County, IAIA11,6630.0%–

97Davis County, IAIA9,2300.0%–

98Franklin County, IAIA9,8680.0%–

99Montgomery County, IAIA10,0020.0%–

SHOWING 1–99 OF 99

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