US
»
Iowa
» Population Density
Biggest US Cities
Highest Population Density In Iowa By County
People per square mile
Rank
County
Population Density
1
Polk County, Iowa
750.5
2
Scott County, Iowa
360.7
3
Linn County, Iowa
294.6
4
Black Hawk County, Iowa
231.7
5
Johnson County, Iowa
213.1
6
Story County, Iowa
156.3
7
Dubuque County, Iowa
154
8
Woodbury County, Iowa
117.1
9
Dallas County, Iowa
112.4
10
Pottawattamie County, Iowa
98
11
Muscatine County, Iowa
97.7
12
Des Moines County, Iowa
96.9
13
Wapello County, Iowa
82.5
14
Warren County, Iowa
81.1
15
Cerro Gordo County, Iowa
77.7
16
Marshall County, Iowa
71
17
Clinton County, Iowa
70.7
18
Lee County, Iowa
69.3
19
Marion County, Iowa
60.1
20
Bremer County, Iowa
55.7
21
Webster County, Iowa
53.1
22
Jasper County, Iowa
50.4
23
Henry County, Iowa
46.4
24
Boone County, Iowa
46
25
Sioux County, Iowa
43.9
26
Dickinson County, Iowa
43.8
27
Mahaska County, Iowa
39.2
28
Jefferson County, Iowa
38.7
29
Washington County, Iowa
38.2
30
Buchanan County, Iowa
36.7
31
Carroll County, Iowa
36.6
32
Benton County, Iowa
36.4
33
Jones County, Iowa
35.9
34
Buena Vista County, Iowa
35.2
35
Mills County, Iowa
34.4
36
Floyd County, Iowa
32.6
37
Poweshiek County, Iowa
32.3
38
Cedar County, Iowa
31.9
39
Jackson County, Iowa
31.2
40
Hardin County, Iowa
30.8
41
Delaware County, Iowa
30.7
42
Winneshiek County, Iowa
30.5
43
Page County, Iowa
29.8
44
Union County, Iowa
29.6
45
Clay County, Iowa
29.4
46
Plymouth County, Iowa
29
47
Fayette County, Iowa
28.6
48
Louisa County, Iowa
28.3
49
Madison County, Iowa
27.9
50
Iowa County, Iowa
27.9
51
Hamilton County, Iowa
27.2
52
Winnebago County, Iowa
27.1
53
Emmet County, Iowa
26
54
Appanoose County, Iowa
25.9
55
Butler County, Iowa
25.6
56
Montgomery County, Iowa
25.3
57
OBrien County, Iowa
25.1
58
Grundy County, Iowa
24.8
59
Chickasaw County, Iowa
24.7
60
Cass County, Iowa
24.7
61
Tama County, Iowa
24.6
62
Crawford County, Iowa
23.9
63
Clayton County, Iowa
23.3
64
Mitchell County, Iowa
23
65
Wright County, Iowa
22.8
66
Humboldt County, Iowa
22.6
67
Allamakee County, Iowa
22.4
68
Clarke County, Iowa
21.5
69
Harrison County, Iowa
21.4
70
Cherokee County, Iowa
20.9
71
Lucas County, Iowa
20.7
72
Shelby County, Iowa
20.6
73
Howard County, Iowa
20.2
74
Hancock County, Iowa
19.9
75
Lyon County, Iowa
19.7
76
Worth County, Iowa
19
77
Guthrie County, Iowa
18.5
78
Franklin County, Iowa
18.4
79
Monroe County, Iowa
18.4
80
Keokuk County, Iowa
18.1
81
Sac County, Iowa
18
82
Davis County, Iowa
17.4
83
Calhoun County, Iowa
17
84
Palo Alto County, Iowa
16.7
85
Ida County, Iowa
16.4
86
Greene County, Iowa
16.4
87
Osceola County, Iowa
16.2
88
Kossuth County, Iowa
16
89
Decatur County, Iowa
15.9
90
Van Buren County, Iowa
15.6
91
Fremont County, Iowa
14.6
92
Audubon County, Iowa
13.8
93
Adair County, Iowa
13.5
94
Monona County, Iowa
13.3
95
Pocahontas County, Iowa
12.7
96
Wayne County, Iowa
12.2
97
Taylor County, Iowa
11.9
98
Ringgold County, Iowa
9.6
99
Adams County, Iowa
9.5
Population Density By
City
Congressional District
County
School District
Business Lists
Most Building Permits
Most Employees of Private Non-Farm Establishments
Most Private Non-Farm Establishments
Highest Total Retail Sales
Highest Retail Sales Per Capita
Most Businesses
Education Lists
Highest Percentage with College Degree
Highest Percentage with High School Diploma
Housing Lists
Most Households
Highest Home Ownership Percentage
Highest Percentage of Residents Living In Multi-Unit Buildings
Highest Median Home Value
Highest Average People Per Household
Most Housing Units
Income Lists
Highest Income Per Capita
Highest Income Per Household
Highest People Below The Poverty Rate
People Lists
Highest Percentage of Minors
Highest Percentage of Seniors
Highest Percentage of Young Children
Highest Percentage of Female Residents
Highest Percentage of Foreign Born Residents
Race Lists
Highest Percentage of American Indian or Alaska Native Residents
Highest Percentage of Asian Residents
Highest Percentage of Black or African American Residents
Highest Percentage of Hispanic or Latino Residents
Highest Percentage of Native Hawaiian/Pacific Islander Residents
Highest Percentage of Residents With Two or More Races
Highest Percentage of White Residents
Highest Percentage White, Not Hispanic or Latino, Residents
Size Lists
Highest Land Area
Highest Population (2012)
Highest Population Density
© 2025 www.biggestuscities.com, All Rights Reserved •
Privacy Policy
• Last updated: Jan 2, 2025