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.

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%–

09Poweshiek County, IAIA18,3680.9%–

10Linn County, IAIA232,0280.9%–

11Scott County, IAIA175,2590.8%–

12Black Hawk County, IAIA131,5320.8%–

13Marshall County, IAIA39,8900.8%–

14Marion County, IAIA34,1920.8%–

15Ringgold County, IAIA4,6420.7%–

16Crawford County, IAIA16,2370.7%–

17Sioux County, IAIA36,7740.6%–

18Cerro Gordo County, IAIA42,3720.6%–

19Jefferson County, IAIA15,2910.6%–

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%–

35Warren County, IAIA57,3310.4%–

36Monona County, IAIA8,5390.4%–

37Union County, IAIA11,8290.4%–

38Pocahontas County, IAIA6,8190.4%–

39Mahaska County, IAIA21,8800.4%–

40Louisa County, IAIA10,4160.4%–

41Appanoose County, IAIA12,0770.3%–

42Adair County, IAIA7,4030.3%–

43Taylor County, IAIA5,8350.3%–

44Benton County, IAIA26,0040.3%–

45Clinton County, IAIA46,0020.3%–

46Monroe County, IAIA7,4060.3%–

47Fayette County, IAIA19,0470.3%–

48Hardin County, IAIA16,4550.3%–

49Wayne County, IAIA6,7380.3%–

50Floyd County, IAIA14,9010.3%–

51Humboldt County, IAIA9,4090.3%–

52Lee County, IAIA32,3060.3%–

53Cedar County, IAIA18,3590.3%–

54Pottawattamie County, IAIA92,9960.3%–

55Washington County, IAIA22,6670.3%–

56Calhoun County, IAIA9,5620.3%–

57Delaware County, IAIA17,6740.3%–

58Cherokee County, IAIA11,3690.3%–

59Osceola County, IAIA5,9800.3%–

60Keokuk County, IAIA9,7970.3%–

61Audubon County, IAIA5,5090.2%–

62Ida County, IAIA6,7770.2%–

63Clayton County, IAIA16,8450.2%–

64Iowa County, IAIA16,5040.2%–

65Emmet County, IAIA9,1070.2%–

66Grundy County, IAIA12,3610.2%–

67Dickinson County, IAIA18,0770.2%–

68Hancock County, IAIA10,5280.2%–

69Sac County, IAIA9,5250.2%–

70Harrison County, IAIA14,6230.2%–

71Kossuth County, IAIA14,3220.2%–

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%–

77Clay County, IAIA16,2020.1%–

78Dallas County, IAIA118,4570.1%–

79Fremont County, IAIA6,5220.1%–

80Wright County, IAIA12,8010.1%–

81Lucas County, IAIA8,8470.1%–

82Adams County, IAIA3,6170.1%–

83Mills County, IAIA14,7930.1%–

84Jackson County, IAIA19,2880.1%–

85Jones County, IAIA21,2530.1%–

86Shelby County, IAIA11,6890.1%–

87Palo Alto County, IAIA8,8990.1%–

88Madison County, IAIA17,2700.1%–

89Allamakee County, IAIA14,2380.1%–

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 2026-07-15 · DATA: US CENSUS BUREAU DECENNIAL CENSUS