Ranking of Iowa Counties By Net International Migration in 2011

Updated on June 21, 2025.

Based on the US Census Vintage data estimates, in 2011, the Net International Migration for Iowa was 6.45K. Among all Iowa counties, Polk County had the highest net international migration (1.63K), followed by Johnson County (1.14K), and Story County (931).

The chart below shows the top 10 counties, and the table below shows the ranking of all Iowa counties.

You can see similar ranking information for related topics, and for other states. You can also see the ranking of all counties in the United States.

See this for other years:
Ranking of Iowa Counties By Net International Migration in 2011
Polk
Johnson
Story
Linn
Black Hawk
Jefferson
Dallas
Woodbury
Scott
Marshall
Ranking of Iowa Counties By Net International Migration in 2011
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Rank County Net Intl. Migration
1 Polk County 1633
2 Johnson County 1135
3 Story County 931
4 Linn County 412
5 Black Hawk County 265
6 Jefferson County 236
7 Dallas County 233
8 Woodbury County 217
9 Scott County 196
10 Marshall County 168
11 Dubuque County 115
12 Sioux County 66
13 Buena Vista County 64
14 Emmet County 63
15 Wapello County 59
16 Poweshiek County 48
17 Muscatine County 47
18 Webster County 43
19 Warren County 31
20 Fayette County 28
21 Allamakee County 23
21 Clinton County 23
21 Lee County 23
22 Louisa County 22
23 Cerro Gordo County 21
24 Crawford County 20
25 Marion County 19
26 Lucas County 16
27 Des Moines County 15
27 Henry County 15
27 Jasper County 15
28 Hardin County 14
29 Mahaska County 13
30 Pottawattamie County 12
31 Decatur County 11
31 Howard County 11
31 Jones County 11
31 Palo Alto County 11
31 Union County 11
32 Bremer County 10
32 Winneshiek County 10
33 O'Brien County 9
33 Page County 9
34 Kossuth County 8
35 Carroll County 7
35 Plymouth County 7
35 Wayne County 7
35 Wright County 7
36 Mitchell County 6
37 Buchanan County 5
37 Butler County 5
37 Cedar County 5
37 Madison County 5
37 Winnebago County 5
38 Dickinson County 4
38 Monona County 4
38 Tama County 4
38 Washington County 4
39 Calhoun County 3
39 Cass County 3
39 Clayton County 3
39 Fremont County 3
39 Guthrie County 3
39 Monroe County 3
39 Osceola County 3
40 Appanoose County 2
40 Benton County 2
40 Hancock County 2
40 Humboldt County 2
40 Shelby County 2
40 Taylor County 2
41 Cherokee County 1
41 Delaware County 1
41 Greene County 1
41 Grundy County 1
41 Jackson County 1
41 Keokuk County 1
41 Pocahontas County 1
41 Van Buren County 1
41 Worth County 1
42 Adair County 0
42 Adams County 0
42 Audubon County 0
42 Chickasaw County 0
42 Clarke County 0
42 Davis County 0
42 Franklin County 0
42 Harrison County 0
42 Ida County 0
42 Lyon County 0
42 Mills County 0
42 Ringgold County 0
42 Sac County 0
43 Boone County -1
43 Floyd County -1
44 Hamilton County -2
44 Montgomery County -2
45 Clay County -3
45 Iowa County -3