RANKING · 2024 ACS · 99 SHOWN OF 99

Highest Mexican population share, Iowa counties

Iowa counties ranked by the share of all residents who are Mexican origin (2024 American Community Survey). A concentration measure: Mexican 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 2.5%. Biggest climber in the top 100 since 2020: Audubon County, IA, up 41 places to #57.

Mexican Americans: full group profile →

IowaAll states All rankings

SAME RANKING BYCities States Metros

YEAR2010 2020 2024

RANKPLACESTATEPOPMEXICAN SHAREVS 2010

01▲2Buena Vista County, IAIA20,44921.8%+4.6 pts

02Marshall County, IAIA39,89021.2%+7.3 pts

03▼2Crawford County, IAIA16,23715.8%−0.2 pts

04Louisa County, IAIA10,41615.7%+2.2 pts

05▲3Clarke County, IAIA9,57414.7%+9.1 pts

06▼1Muscatine County, IAIA41,85314.2%+1.8 pts

07▲2Wright County, IAIA12,80113.7%+7.0 pts

08▼2Woodbury County, IAIA106,64913.5%+3.2 pts

09▼2Franklin County, IAIA9,86811.3%+2.4 pts

10▲1Sioux County, IAIA36,77410.9%+4.2 pts

11▼1Tama County, IAIA16,7968.9%+3.7 pts

12▲4Osceola County, IAIA5,9808.1%+4.1 pts

13▲5Hamilton County, IAIA14,9447.7%+4.2 pts

14▼1Pottawattamie County, IAIA92,9967.5%+2.7 pts

15▼3Wapello County, IAIA35,2107.4%+1.5 pts

16▼1Polk County, IAIA516,5467.0%+1.3 pts

17▲4Taylor County, IAIA5,8356.9%+2.8 pts

18▼4Emmet County, IAIA9,1076.3%+2.8 pts

19▼2Scott County, IAIA175,2596.1%+1.4 pts

20▼1Washington County, IAIA22,6675.6%+2.0 pts

21▼1Allamakee County, IAIA14,2385.3%+2.8 pts

22▲3Hancock County, IAIA10,5285.2%+2.1 pts

23Plymouth County, IAIA25,6974.8%+3.2 pts

24▲2Dallas County, IAIA118,4574.7%+0.8 pts

25▼3Cerro Gordo County, IAIA42,3724.4%+1.5 pts

26▲2Winnebago County, IAIA10,2514.3%+3.1 pts

27▲35Pocahontas County, IAIA6,8194.1%+2.8 pts

28▲1Hardin County, IAIA16,4554.0%+1.6 pts

29▲22Ida County, IAIA6,7774.0%+2.9 pts

30▲6Johnson County, IAIA160,0443.9%+1.4 pts

31▼7Webster County, IAIA36,8383.5%+0.6 pts

32Henry County, IAIA19,3493.4%+0.6 pts

33▲21Shelby County, IAIA11,6893.4%+3.1 pts

34▲16Union County, IAIA11,8293.3%+2.1 pts

35▲3Floyd County, IAIA14,9013.2%+1.8 pts

36▼2Humboldt County, IAIA9,4093.1%+0.8 pts

37▼4Black Hawk County, IAIA131,5323.1%+0.5 pts

38▲10Lyon County, IAIA12,3543.0%+1.6 pts

39▲4Linn County, IAIA232,0282.9%+1.0 pts

40▲5Story County, IAIA101,2912.8%+1.2 pts

41▼14Clay County, IAIA16,2022.8%+0.7 pts

42▼11Sac County, IAIA9,5252.8%+1.3 pts

43▲4Fremont County, IAIA6,5222.8%+0.7 pts

44▼14Lee County, IAIA32,3062.8%+0.3 pts

45▲22Greene County, IAIA8,6582.8%+1.6 pts

46▼5Chickasaw County, IAIA11,6632.6%+1.1 pts

47▲2Boone County, IAIA26,7992.6%+0.9 pts

48▲7Decatur County, IAIA7,6552.5%+0.4 pts

49▼5Iowa County, IAIA16,5042.5%+1.4 pts

50▼10Worth County, IAIA7,3382.5%+0.9 pts

51▲14Des Moines County, IAIA38,0772.5%+0.1 pts

52▲25Adair County, IAIA7,4032.5%+1.8 pts

53▲17Poweshiek County, IAIA18,3682.4%+1.2 pts

54▲3Cedar County, IAIA18,3592.4%+1.2 pts

55▲5Cass County, IAIA12,9602.4%+1.0 pts

56▼3Warren County, IAIA57,3312.4%+1.0 pts

57▲41Audubon County, IAIA5,5092.3%+1.7 pts

58▲41Cherokee County, IAIA11,3692.3%+0.6 pts

59▼17Page County, IAIA14,8562.3%0.0 pts

60▲21Jefferson County, IAIA15,2912.3%+0.6 pts

61▲26Carroll County, IAIA20,3032.2%+1.0 pts

62▲18Dickinson County, IAIA18,0772.1%+1.5 pts

63▲15Dubuque County, IAIA99,3812.1%+0.8 pts

64▼12Clinton County, IAIA46,0022.0%−0.1 pts

65▲3Guthrie County, IAIA10,7821.9%+0.8 pts

66▼10Monona County, IAIA8,5391.9%+1.0 pts

67▼32O'Brien County, IAIA14,2201.9%−1.0 pts

68▼9Keokuk County, IAIA9,7971.9%+1.3 pts

69▲4Howard County, IAIA9,4151.8%+1.1 pts

70▲12Kossuth County, IAIA14,3221.8%+0.9 pts

71▲5Calhoun County, IAIA9,5621.7%+1.1 pts

72▼11Palo Alto County, IAIA8,8991.6%+0.8 pts

73▼4Jones County, IAIA21,2531.6%+1.2 pts

74▲14Adams County, IAIA3,6171.6%−0.4 pts

75▼1Madison County, IAIA17,2701.6%+0.8 pts

76▼5Harrison County, IAIA14,6231.6%+1.1 pts

77▲2Davis County, IAIA9,2301.6%+1.4 pts

78▲5Appanoose County, IAIA12,0771.5%+0.8 pts

79▼40Mills County, IAIA14,7931.5%+0.3 pts

80▲10Benton County, IAIA26,0041.5%+0.7 pts

81▲11Butler County, IAIA14,0491.5%+0.8 pts

82▼18Mahaska County, IAIA21,8801.5%+0.3 pts

83▼20Fayette County, IAIA19,0471.5%+0.2 pts

84▼9Marion County, IAIA34,1921.5%+1.0 pts

85Buchanan County, IAIA20,8831.4%+0.7 pts

86▼28Jasper County, IAIA38,1531.3%−0.1 pts

87▲8Delaware County, IAIA17,6741.2%+0.9 pts

88▼22Clayton County, IAIA16,8451.2%0.0 pts

89▼17Winneshiek County, IAIA19,7331.1%0.0 pts

90▼44Ringgold County, IAIA4,6421.1%+0.4 pts

91▲5Grundy County, IAIA12,3611.0%+0.5 pts

92▼8Monroe County, IAIA7,4061.0%+0.4 pts

93▲4Bremer County, IAIA25,2960.9%+0.5 pts

94▼1Mitchell County, IAIA10,6500.8%+0.2 pts

95▼6Wayne County, IAIA6,7380.8%–

96▼5Jackson County, IAIA19,2880.8%+0.4 pts

97▼3Van Buren County, IAIA7,1310.7%+0.4 pts

98▼12Lucas County, IAIA8,8470.6%−0.2 pts

99▼62Montgomery County, IAIA10,0020.2%−2.2 pts

SHOWING 1–99 OF 99

Download CSV (full list, 99 rows)

UPDATED 2026-09-11 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES