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RANKING · 2020 CENSUS · 99 SHOWN OF 99

Most foreign-born residents, Iowa counties · 2020

Iowa counties ranked by the share of residents born outside the US (2020 ACS). This list covers the 99 counties in Iowa that qualify, ranked against each other statewide.

Most foreign-born residents by state
All USAlaskaAlabamaArkansasArizonaCaliforniaColoradoFloridaGeorgiaIowaIdahoIllinoisIndianaKansasKentuckyLouisianaMassachusettsMarylandMaineMichiganMinnesotaMissouriMississippiMontanaNorth CarolinaNorth DakotaNebraskaNew HampshireNew JerseyNew MexicoNevadaNew YorkOhioOklahomaOregonPennsylvaniaSouth CarolinaSouth DakotaTennesseeTexasUtahVirginiaVermontWashingtonWisconsinWest VirginiaWyoming
RANKPLACESTATEPOPFOREIGN-BORNVS 2010
01Buena Vista County, IAIA20,44921.2%+5.9 pts
02Crawford County, IAIA16,23718.2%+5.9 pts
03Jefferson County, IAIA15,29113.1%+0.7 pts
04Marshall County, IAIA39,89012.7%+3.1 pts
05Johnson County, IAIA160,04411.6%+3.3 pts
06Story County, IAIA101,2919.7%+1.6 pts
07Louisa County, IAIA10,4169.3%+1.9 pts
08Polk County, IAIA516,5469.1%+1.2 pts
09Woodbury County, IAIA106,6498.8%+0.8 pts
10Dallas County, IAIA118,4578.6%+2.2 pts
11Wapello County, IAIA35,2107.9%+2.4 pts
12Clarke County, IAIA9,5747.0%+1.8 pts
13Muscatine County, IAIA41,8536.9%−0.7 pts
14Black Hawk County, IAIA131,5326.7%+2.3 pts
15Emmet County, IAIA9,1075.5%+1.8 pts
16Sioux County, IAIA36,7745.4%−0.6 pts
17Osceola County, IAIA5,9804.8%+2.1 pts
18Tama County, IAIA16,7964.8%+1.4 pts
19Linn County, IAIA232,0284.5%+1.6 pts
20Washington County, IAIA22,6674.4%+1.6 pts
21Scott County, IAIA175,2594.3%+0.8 pts
22Taylor County, IAIA5,8354.3%+1.9 pts
23Allamakee County, IAIA14,2384.3%−0.7 pts
24Hamilton County, IAIA14,9444.3%+2.0 pts
25Franklin County, IAIA9,8684.0%−1.4 pts
26Pottawattamie County, IAIA92,9963.9%+0.6 pts
27Henry County, IAIA19,3493.9%−0.9 pts
28Wright County, IAIA12,8013.9%−0.4 pts
29Floyd County, IAIA14,9013.6%+1.8 pts
30Plymouth County, IAIA25,6973.6%+2.3 pts
31Pocahontas County, IAIA6,8193.1%+1.9 pts
32Lucas County, IAIA8,8472.9%−0.2 pts
33O'Brien County, IAIA14,2202.9%+0.7 pts
34Webster County, IAIA36,8382.7%+0.6 pts
35Dubuque County, IAIA99,3812.7%+1.1 pts
36Hardin County, IAIA16,4552.6%+0.8 pts
37Poweshiek County, IAIA18,3682.6%+0.3 pts
38Clayton County, IAIA16,8452.6%+0.9 pts
39Jasper County, IAIA38,1532.4%+1.4 pts
40Decatur County, IAIA7,6552.4%−0.3 pts
41Shelby County, IAIA11,6892.3%+1.8 pts
42Winnebago County, IAIA10,2512.2%−0.8 pts
43Cerro Gordo County, IAIA42,3722.2%−0.0 pts
44Humboldt County, IAIA9,4092.2%+0.6 pts
45Page County, IAIA14,8562.1%+0.1 pts
46Carroll County, IAIA20,3032.0%+1.4 pts
47Clay County, IAIA16,2022.0%+0.0 pts
48Winneshiek County, IAIA19,7332.0%+0.1 pts
49Chickasaw County, IAIA11,6632.0%+0.4 pts
50Lyon County, IAIA12,3542.0%+1.3 pts
51Palo Alto County, IAIA8,8992.0%+1.3 pts
52Greene County, IAIA8,6582.0%+0.6 pts
53Mahaska County, IAIA21,8801.9%+0.5 pts
54Des Moines County, IAIA38,0771.9%−0.0 pts
55Dickinson County, IAIA18,0771.9%+0.8 pts
56Marion County, IAIA34,1921.9%+0.3 pts
57Sac County, IAIA9,5251.9%+0.0 pts
58Bremer County, IAIA25,2961.7%+0.4 pts
59Boone County, IAIA26,7991.7%+0.9 pts
60Kossuth County, IAIA14,3221.7%+1.1 pts
61Hancock County, IAIA10,5281.7%+0.3 pts
62Union County, IAIA11,8291.7%+1.2 pts
63Fremont County, IAIA6,5221.7%+0.6 pts
64Adair County, IAIA7,4031.7%+1.2 pts
65Calhoun County, IAIA9,5621.6%+0.9 pts
66Cedar County, IAIA18,3591.6%+0.4 pts
67Warren County, IAIA57,3311.6%+0.4 pts
68Clinton County, IAIA46,0021.5%+0.3 pts
69Van Buren County, IAIA7,1311.5%+0.4 pts
70Guthrie County, IAIA10,7821.5%+0.4 pts
71Davis County, IAIA9,2301.4%+0.8 pts
72Mills County, IAIA14,7931.4%−0.2 pts
73Ida County, IAIA6,7771.4%+0.7 pts
74Howard County, IAIA9,4151.4%+0.4 pts
75Cherokee County, IAIA11,3691.3%+0.2 pts
76Grundy County, IAIA12,3611.3%+0.9 pts
77Fayette County, IAIA19,0471.3%+0.1 pts
78Cass County, IAIA12,9601.3%+0.1 pts
79Butler County, IAIA14,0491.2%+0.3 pts
80Lee County, IAIA32,3061.2%−0.2 pts
81Jones County, IAIA21,2531.1%+0.2 pts
82Mitchell County, IAIA10,6501.1%+0.0 pts
83Jackson County, IAIA19,2881.1%+0.4 pts
84Iowa County, IAIA16,5041.0%+0.4 pts
85Ringgold County, IAIA4,6421.0%−0.7 pts
86Wayne County, IAIA6,7381.0%−1.8 pts
87Keokuk County, IAIA9,7971.0%+0.2 pts
88Adams County, IAIA3,6170.9%+0.6 pts
89Madison County, IAIA17,2700.8%+0.2 pts
90Benton County, IAIA26,0040.8%−0.2 pts
91Worth County, IAIA7,3380.8%+0.0 pts
92Delaware County, IAIA17,6740.7%+0.3 pts
93Buchanan County, IAIA20,8830.7%−0.1 pts
94Monroe County, IAIA7,4060.7%−0.9 pts
95Montgomery County, IAIA10,0020.6%−1.4 pts
96Appanoose County, IAIA12,0770.6%−0.1 pts
97Harrison County, IAIA14,6230.5%−0.4 pts
98Audubon County, IAIA5,5090.4%−0.2 pts
99Monona County, IAIA8,5390.3%−0.6 pts
SHOWING 1–99 OF 99

UPDATED 2026-08-08 · DATA: US CENSUS BUREAU DECENNIAL CENSUS