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RANKING · 2024 ACS · 99 SHOWN OF 99

Most foreign-born residents, Iowa counties

Iowa counties ranked by the share of residents born outside the US (2024 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, IAIA20,44921.3%+6.0 pts
02Crawford County, IAIA16,23717.5%+5.3 pts
03Marshall County, IAIA39,89014.6%+5.0 pts
04Jefferson County, IAIA15,29114.1%+1.7 pts
05Woodbury County, IAIA106,64910.6%+2.6 pts
06Dallas County, IAIA118,45710.4%+4.0 pts
07Polk County, IAIA516,54610.1%+2.3 pts
08Wapello County, IAIA35,2109.9%+4.4 pts
09Johnson County, IAIA160,0449.8%+1.6 pts
10Louisa County, IAIA10,4169.4%+2.0 pts
11Story County, IAIA101,2918.6%+0.5 pts
12Sioux County, IAIA36,7748.5%+2.6 pts
13Franklin County, IAIA9,8688.5%+3.1 pts
14Allamakee County, IAIA14,2387.2%+2.3 pts
15Muscatine County, IAIA41,8536.8%−0.7 pts
16Clarke County, IAIA9,5746.6%+1.4 pts
17Wright County, IAIA12,8016.5%+2.3 pts
18Black Hawk County, IAIA131,5326.5%+2.0 pts
19Hamilton County, IAIA14,9446.4%+4.1 pts
20Osceola County, IAIA5,9805.8%+3.0 pts
21Linn County, IAIA232,0285.6%+2.7 pts
22Scott County, IAIA175,2594.8%+1.3 pts
23O'Brien County, IAIA14,2204.4%+2.3 pts
24Humboldt County, IAIA9,4094.4%+2.8 pts
25Lucas County, IAIA8,8474.1%+1.0 pts
26Tama County, IAIA16,7964.1%+0.7 pts
27Pottawattamie County, IAIA92,9964.0%+0.6 pts
28Plymouth County, IAIA25,6973.7%+2.4 pts
29Hardin County, IAIA16,4553.6%+1.8 pts
30Poweshiek County, IAIA18,3683.6%+1.3 pts
31Cherokee County, IAIA11,3693.6%+2.4 pts
32Winnebago County, IAIA10,2513.5%+0.4 pts
33Kossuth County, IAIA14,3223.4%+2.8 pts
34Emmet County, IAIA9,1073.4%−0.3 pts
35Dubuque County, IAIA99,3813.3%+1.6 pts
36Washington County, IAIA22,6673.2%+0.5 pts
37Taylor County, IAIA5,8353.2%+0.8 pts
38Pocahontas County, IAIA6,8193.2%+1.9 pts
39Webster County, IAIA36,8383.0%+0.9 pts
40Chickasaw County, IAIA11,6633.0%+1.4 pts
41Jasper County, IAIA38,1532.8%+1.7 pts
42Winneshiek County, IAIA19,7332.6%+0.6 pts
43Cerro Gordo County, IAIA42,3722.6%+0.3 pts
44Ida County, IAIA6,7772.6%+1.9 pts
45Clay County, IAIA16,2022.5%+0.5 pts
46Palo Alto County, IAIA8,8992.5%+1.8 pts
47Floyd County, IAIA14,9012.4%+0.6 pts
48Sac County, IAIA9,5252.4%+0.5 pts
49Des Moines County, IAIA38,0772.3%+0.4 pts
50Howard County, IAIA9,4152.3%+1.4 pts
51Butler County, IAIA14,0492.3%+1.4 pts
52Clayton County, IAIA16,8452.3%+0.6 pts
53Mahaska County, IAIA21,8802.2%+0.8 pts
54Hancock County, IAIA10,5282.1%+0.7 pts
55Fayette County, IAIA19,0472.1%+1.0 pts
56Marion County, IAIA34,1922.1%+0.5 pts
57Henry County, IAIA19,3492.0%−2.7 pts
58Clinton County, IAIA46,0022.0%+0.8 pts
59Lyon County, IAIA12,3542.0%+1.3 pts
60Lee County, IAIA32,3061.9%+0.5 pts
61Decatur County, IAIA7,6551.9%−0.8 pts
62Guthrie County, IAIA10,7821.9%+0.8 pts
63Page County, IAIA14,8561.9%−0.1 pts
64Union County, IAIA11,8291.8%+1.3 pts
65Mitchell County, IAIA10,6501.8%+0.8 pts
66Madison County, IAIA17,2701.8%+1.1 pts
67Grundy County, IAIA12,3611.7%+1.3 pts
68Audubon County, IAIA5,5091.7%+1.0 pts
69Adair County, IAIA7,4031.6%+1.1 pts
70Shelby County, IAIA11,6891.6%+1.1 pts
71Fremont County, IAIA6,5221.6%+0.5 pts
72Jones County, IAIA21,2531.6%+0.7 pts
73Bremer County, IAIA25,2961.6%+0.3 pts
74Montgomery County, IAIA10,0021.6%−0.4 pts
75Carroll County, IAIA20,3031.6%+0.9 pts
76Warren County, IAIA57,3311.5%+0.4 pts
77Boone County, IAIA26,7991.5%+0.7 pts
78Greene County, IAIA8,6581.5%+0.1 pts
79Davis County, IAIA9,2301.4%+0.8 pts
80Appanoose County, IAIA12,0771.3%+0.7 pts
81Buchanan County, IAIA20,8831.3%+0.5 pts
82Dickinson County, IAIA18,0771.2%+0.1 pts
83Mills County, IAIA14,7931.2%−0.5 pts
84Keokuk County, IAIA9,7971.0%+0.2 pts
85Iowa County, IAIA16,5041.0%+0.4 pts
86Calhoun County, IAIA9,5621.0%+0.3 pts
87Wayne County, IAIA6,7380.9%−1.9 pts
88Cass County, IAIA12,9600.9%−0.3 pts
89Cedar County, IAIA18,3590.9%−0.3 pts
90Worth County, IAIA7,3380.9%+0.2 pts
91Benton County, IAIA26,0040.8%−0.1 pts
92Harrison County, IAIA14,6230.8%−0.1 pts
93Jackson County, IAIA19,2880.8%+0.2 pts
94Monroe County, IAIA7,4060.7%−0.8 pts
95Ringgold County, IAIA4,6420.7%−1.0 pts
96Monona County, IAIA8,5390.7%−0.3 pts
97Van Buren County, IAIA7,1310.6%−0.5 pts
98Adams County, IAIA3,6170.5%+0.2 pts
99Delaware County, IAIA17,6740.3%−0.1 pts
SHOWING 1–99 OF 99

UPDATED 2026-08-08 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES