Ranking of Iowa Counties By Net Migration Rate per 1K in 2015

Updated on June 21, 2025.

Based on the US Census Vintage data estimates, in 2015, the Net Migration Rate per 1K for Iowa was 0.66. Among all Iowa counties, Dallas County had the highest net migration rate (25.78), followed by Dickinson County (10.28), and Warren County (10.24).

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 Migration Rate per 1K in 2015
Dallas
Dickinson
Warren
Taylor
Ringgold
Johnson
Polk
Winnebago
Boone
Mills
Ranking of Iowa Counties By Net Migration Rate per 1K in 2015
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Rank County Net Migration Rate
1 Dallas County 25.78
2 Dickinson County 10.28
3 Warren County 10.24
4 Taylor County 9.67
5 Ringgold County 9.06
6 Johnson County 7.54
7 Polk County 6.51
8 Winnebago County 6.33
9 Boone County 6.06
10 Mills County 5.73
11 Madison County 5.49
12 Linn County 4.89
13 Story County 4.88
14 Palo Alto County 4.6
15 Jefferson County 3.98
16 Winneshiek County 3.09
17 Grundy County 2.9
18 Washington County 2.44
19 Page County 1.81
20 Bremer County 1.58
21 Cass County 1.57
22 Dubuque County 1.21
23 Monona County 1.13
24 Wapello County 1.04
25 Clay County 0.67
26 Pottawattamie County 0.51
27 Monroe County 0.38
28 Webster County 0.11
29 Clarke County 0
29 Ida County 0
30 Henry County -0.4
31 Guthrie County -0.47
31 Mitchell County -0.47
32 Lucas County -0.58
33 Scott County -0.76
34 Lyon County -0.94
35 Cedar County -0.98
36 Louisa County -1.06
37 Hancock County -1.45
38 Jackson County -1.49
39 Hamilton County -1.71
40 Plymouth County -1.81
41 Calhoun County -1.83
42 Black Hawk County -1.89
43 Muscatine County -1.97
44 Clayton County -2.03
45 Wayne County -2.04
46 Hardin County -2.37
47 Kossuth County -2.5
48 Delaware County -2.7
49 Butler County -2.88
50 Iowa County -3.31
51 Woodbury County -3.43
52 Benton County -3.63
53 Cerro Gordo County -4.04
54 Sioux County -4.09
55 Fayette County -4.35
56 Shelby County -4.39
57 Jasper County -4.4
57 Lee County -4.4
58 Buchanan County -4.5
59 Appanoose County -4.51
60 Sac County -4.8
61 Wright County -4.82
62 Carroll County -4.99
63 Marion County -5.18
64 Des Moines County -5.25
65 Mahaska County -5.26
66 Worth County -5.31
67 Floyd County -5.32
68 Davis County -5.48
69 Harrison County -6.05
70 Howard County -6.1
71 Tama County -6.26
72 Jones County -6.39
73 O'Brien County -6.65
74 Humboldt County -6.87
75 Chickasaw County -7.29
76 Clinton County -7.5
77 Crawford County -7.89
78 Marshall County -9.45
79 Keokuk County -9.58
80 Audubon County -9.59
81 Decatur County -10.02
82 Van Buren County -10.89
83 Poweshiek County -11.19
84 Emmet County -11.98
85 Franklin County -12.63
86 Osceola County -12.91
87 Union County -13.01
88 Fremont County -13.77
89 Allamakee County -14.6
90 Buena Vista County -16.84
91 Pocahontas County -17.48
92 Greene County -18.81
93 Montgomery County -19.38
94 Adair County -22.61
95 Cherokee County -24.56
96 Adams County -27.01