Ranking of Iowa Counties By Net Migration Rate per 1K in 2024

Updated on June 21, 2025.

Based on the US Census Vintage data estimates, in 2024, the Net Migration Rate per 1K for Iowa was 5.95. Among all Iowa counties, Dallas County had the highest net migration rate (26.42), followed by Warren County (16.77), and Adams County (15.09).

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 2024
Dallas
Warren
Adams
O'Brien
Jefferson
Polk
Greene
Jones
Crawford
Wayne
Ranking of Iowa Counties By Net Migration Rate per 1K in 2024
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Rank County Net Migration Rate
1 Dallas County 26.42
2 Warren County 16.77
3 Adams County 15.09
4 O'Brien County 13.77
5 Jefferson County 12.99
6 Polk County 12.11
7 Greene County 11.01
8 Jones County 10.99
9 Crawford County 10.95
10 Wayne County 10.94
11 Marion County 10.45
12 Mitchell County 10.3
13 Franklin County 10.24
14 Audubon County 9.73
15 Mills County 9.54
16 Linn County 8.45
17 Webster County 8.43
18 Union County 8.38
19 Boone County 7.99
20 Fremont County 7.88
21 Adair County 7.82
22 Page County 7.59
23 Story County 7.38
24 Louisa County 7.37
25 Dickinson County 6.9
26 Lyon County 6.89
27 Johnson County 6.79
28 Madison County 6.67
29 Black Hawk County 6.64
30 Wapello County 6.41
31 Marshall County 5.56
32 Cherokee County 5.41
33 Palo Alto County 5.11
34 Chickasaw County 4.96
35 Shelby County 4.65
36 Jasper County 4.49
37 Guthrie County 4.46
38 Scott County 4.18
39 Mahaska County 3.5
40 Jackson County 3.3
41 Pottawattamie County 3.09
42 Appanoose County 3.05
43 Iowa County 2.93
44 Humboldt County 2.92
45 Osceola County 2.66
46 Dubuque County 2.52
47 Cerro Gordo County 2.42
48 Des Moines County 2.37
49 Benton County 2.25
50 Kossuth County 2.15
51 Winneshiek County 2.13
52 Hardin County 2
53 Woodbury County 1.97
54 Washington County 1.9
55 Bremer County 1.78
56 Delaware County 1.76
57 Ringgold County 1.73
58 Clayton County 1.71
59 Cedar County 1.59
60 Plymouth County 1.24
61 Allamakee County 0.99
62 Hamilton County 0.94
63 Grundy County 0.73
64 Poweshiek County 0.54
65 Lee County 0.37
66 Lucas County 0.34
67 Howard County 0.32
68 Clinton County -0.28
69 Buena Vista County -0.82
70 Sioux County -0.9
71 Hancock County -0.94
72 Harrison County -0.96
73 Pocahontas County -1.14
74 Tama County -1.43
75 Clay County -1.58
76 Buchanan County -1.64
77 Butler County -2.25
78 Carroll County -2.3
79 Worth County -2.6
80 Davis County -2.72
81 Cass County -2.83
82 Fayette County -3.18
83 Muscatine County -3.34
84 Montgomery County -3.36
85 Wright County -3.45
86 Monona County -3.9
87 Ida County -4.25
88 Calhoun County -5.54
89 Sac County -7.08
90 Van Buren County -8.29
91 Keokuk County -8.48
92 Henry County -9.14
93 Clarke County -10.23
94 Decatur County -11.27
95 Taylor County -11.58
96 Monroe County -11.98
97 Emmet County -12.15
98 Winnebago County -12.32
99 Floyd County -12.82