Iowa / Counties by Population

Iowa Counties by Population

The data is from the US Census. Below are 99 Iowa counties ranked 1 through 99. You can copy and paste this list directly into your favorite spreadsheet program. Don't you just adore lovely numbers listed nicely in columns & rows? We do!

Looking for a list of cities, counties or zips in Iowa?
Get a spreadsheet with the most current population, income, housing demographics and more for all cities, counties or zips in Iowa. Learn more.

Rank County Population
1 Polk County 481,830
2 Linn County 224,115
3 Scott County 172,509
4 Johnson County 149,210
5 Black Hawk County 132,648
6 Woodbury County 102,429
7 Story County 97,502
8 Dubuque County 97,041
9 Pottawattamie County 93,386
10 Dallas County 87,235
11 Warren County 50,163
12 Clinton County 47,010
13 Cerro Gordo County 43,006
14 Muscatine County 42,880
15 Marshall County 40,288
16 Des Moines County 39,417
17 Jasper County 36,966
18 Webster County 36,605
19 Wapello County 35,044
20 Sioux County 34,860
21 Lee County 34,295
22 Marion County 33,105
23 Boone County 26,484
24 Benton County 25,642
25 Plymouth County 25,220
26 Bremer County 24,911
27 Washington County 22,281
28 Mahaska County 22,235
29 Buchanan County 21,202
30 Jones County 20,536
31 Carroll County 20,320
32 Winneshiek County 20,201
33 Buena Vista County 20,110
34 Henry County 19,863
35 Fayette County 19,796
36 Jackson County 19,366
37 Cedar County 18,543
38 Jefferson County 18,422
39 Poweshiek County 18,314
40 Clayton County 17,637
41 Dickinson County 17,199
42 Delaware County 17,153
43 Tama County 17,058
44 Crawford County 17,056
45 Hardin County 17,048
46 Clay County 16,170
47 Iowa County 16,103
48 Madison County 16,013
49 Floyd County 15,744
50 Page County 15,224
51 Hamilton County 15,115
52 Mills County 15,068
53 Kossuth County 14,999
54 Butler County 14,606
55 Harrison County 14,136
56 Allamakee County 13,884
57 O'Brien County 13,801
58 Cass County 13,145
59 Wright County 12,784
60 Union County 12,450
61 Appanoose County 12,352
62 Grundy County 12,333
63 Chickasaw County 12,005
64 Lyon County 11,792
65 Shelby County 11,628
66 Cherokee County 11,316
67 Louisa County 11,184
68 Hancock County 10,771
69 Guthrie County 10,670
70 Mitchell County 10,631
71 Winnebago County 10,587
72 Franklin County 10,164
73 Keokuk County 10,153
74 Montgomery County 10,137
75 Sac County 9,817
76 Calhoun County 9,746
77 Humboldt County 9,564
78 Emmet County 9,432
79 Clarke County 9,374
80 Howard County 9,228
81 Palo Alto County 9,092
82 Greene County 8,981
83 Davis County 8,966
84 Monona County 8,740
85 Lucas County 8,534
86 Decatur County 7,950
87 Monroe County 7,845
88 Worth County 7,469
89 Van Buren County 7,157
90 Adair County 7,054
91 Fremont County 6,948
92 Ida County 6,865
93 Pocahontas County 6,846
94 Wayne County 6,476
95 Taylor County 6,178
96 Osceola County 6,045
97 Audubon County 5,578
98 Ringgold County 5,034
99 Adams County 3,686

United States Census Bureau / American FactFinder. "Annual Estimates of the Resident Population: April 1, 2010 to July 1, 2017". 2017 Population Estimates Program. Web. March 2018. http://factfinder2.census.gov.

Connect

Cubit logo
Copyright 2018 Cubit Planning, Inc.