Ranking of Iowa Counties By Birth Rate per 1K in 2015

Updated on June 21, 2025.

Based on the US Census Vintage data estimates, in 2015, the Birth Rate per 1K for Iowa was 12.74. Among all Iowa counties, Dallas County had the highest birth rate (15.87), followed by Davis County (15.63), and Woodbury County (15.08).

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 Birth Rate per 1K in 2015
Dallas
Davis
Woodbury
Polk
Buena Vista
Washington
Sioux
Lyon
Osceola
Taylor
Ranking of Iowa Counties By Birth Rate per 1K in 2015
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Rank County Birth Rate
1 Dallas County 15.87
2 Davis County 15.63
3 Woodbury County 15.08
4 Polk County 15.01
5 Buena Vista County 14.64
6 Washington County 14.62
7 Sioux County 14.52
8 Lyon County 13.89
9 Osceola County 13.88
10 Taylor County 13.85
11 Louisa County 13.75
12 Clarke County 13.69
13 Howard County 13.6
14 Buchanan County 13.59
15 Carroll County 13.49
16 Tama County 13.32
17 Black Hawk County 13.3
18 Delaware County 13.22
19 Linn County 13.19
19 Wayne County 13.19
20 Scott County 13.16
21 Mahaska County 13.15
22 Allamakee County 12.95
23 Clay County 12.86
23 Pottawattamie County 12.86
24 Johnson County 12.83
25 Palo Alto County 12.82
26 O'Brien County 12.8
27 Dubuque County 12.79
28 Marshall County 12.73
29 Hamilton County 12.48
30 Benton County 12.45
31 Wright County 12.43
32 Wapello County 12.39
33 Montgomery County 12.37
34 Clinton County 12.35
35 Floyd County 12.34
36 Crawford County 12.27
37 Lee County 12.26
38 Webster County 12.24
39 Pocahontas County 12.23
40 Plymouth County 12.2
41 Muscatine County 12.13
42 Calhoun County 12.11
43 Lucas County 12.06
44 Henry County 11.99
45 Franklin County 11.86
46 Audubon County 11.85
47 Kossuth County 11.72
48 Humboldt County 11.67
49 Greene County 11.62
50 Iowa County 11.59
51 Appanoose County 11.48
51 Fremont County 11.48
52 Ringgold County 11.47
53 Decatur County 11.37
54 Jasper County 11.35
55 Page County 11.31
56 Cerro Gordo County 11.25
57 Shelby County 11.23
58 Mills County 11.2
59 Cherokee County 11.16
59 Emmet County 11.16
60 Warren County 11.11
61 Des Moines County 11.1
62 Marion County 10.93
63 Boone County 10.92
64 Mitchell County 10.86
64 Winnebago County 10.86
65 Sac County 10.8
66 Hancock County 10.78
67 Bremer County 10.76
68 Adams County 10.75
69 Cedar County 10.73
70 Monroe County 10.71
71 Hardin County 10.7
71 Harrison County 10.7
71 Monona County 10.7
72 Guthrie County 10.68
73 Clayton County 10.65
74 Van Buren County 10.62
75 Butler County 10.52
75 Jackson County 10.52
76 Chickasaw County 10.41
77 Fayette County 10.39
78 Keokuk County 10.37
79 Ida County 10.33
80 Jones County 10.3
81 Dickinson County 10.22
82 Madison County 10.15
83 Poweshiek County 10.05
84 Grundy County 9.92
85 Cass County 9.87
86 Jefferson County 9.63
87 Worth County 9.43
88 Story County 9.27
89 Union County 9.18
90 Adair County 8.69
91 Winneshiek County 8.49