US Census Data

Most densely populated in Iowa

Iowa counties and cities ranked by population density.

This page ranks the counties and cities of Iowa by population density — which have the most people per square mile, according to the US Census Bureau's American Community Survey 5-year estimates.

Among counties, Polk County leads at 869/sq mi.

Among cities & places, University Heights leads at 4,746/sq mi.

Counties

#NamePeople / sq mi
1Polk County869/sq mi
2Scott County380/sq mi
3Linn County320/sq mi
4Johnson County253/sq mi
5Black Hawk County231/sq mi
6Dallas County177/sq mi
7Story County172/sq mi
8Dubuque County163/sq mi
9Woodbury County121/sq mi
10Pottawattamie County98/sq mi
11Muscatine County98/sq mi
12Warren County94/sq mi
13Des Moines County93/sq mi
14Wapello County82/sq mi
15Cerro Gordo County75/sq mi
16Marshall County70/sq mi
17Clinton County67/sq mi
18Lee County64/sq mi
19Marion County61/sq mi
20Bremer County58/sq mi
21Jasper County52/sq mi
22Webster County51/sq mi
23Dickinson County47/sq mi
24Sioux County47/sq mi
25Boone County47/sq mi
26Henry County47/sq mi
27Washington County40/sq mi
28Mahaska County39/sq mi
29Carroll County36/sq mi
30Buchanan County36/sq mi
31Jones County36/sq mi
32Jefferson County36/sq mi
33Buena Vista County36/sq mi
34Benton County36/sq mi
35Mills County33/sq mi
36Cedar County32/sq mi
37Poweshiek County32/sq mi
38Floyd County31/sq mi
39Jackson County31/sq mi
40Delaware County30/sq mi
41Madison County30/sq mi
42Plymouth County30/sq mi
43Hardin County29/sq mi
44Clay County29/sq mi
45Winneshiek County29/sq mi
46Union County28/sq mi
47Page County28/sq mi
48Iowa County28/sq mi
49Louisa County27/sq mi
50Winnebago County27/sq mi
51Fayette County27/sq mi
52Hamilton County26/sq mi
53Butler County25/sq mi
54Appanoose County25/sq mi
55Grundy County25/sq mi
56O'Brien County25/sq mi
57Montgomery County24/sq mi
58Tama County24/sq mi
59Chickasaw County24/sq mi
60Emmet County24/sq mi
61Cass County23/sq mi
62Crawford County23/sq mi
63Mitchell County22/sq mi
64Clarke County22/sq mi
65Wright County22/sq mi
66Humboldt County22/sq mi
67Allamakee County22/sq mi
68Clayton County22/sq mi
69Harrison County21/sq mi
70Lyon County21/sq mi
71Lucas County20/sq mi
72Cherokee County20/sq mi
73Howard County20/sq mi
74Shelby County20/sq mi
75Hancock County19/sq mi
76Worth County18/sq mi
77Davis County18/sq mi
78Guthrie County18/sq mi
79Monroe County17/sq mi
80Calhoun County17/sq mi
81Keokuk County17/sq mi
82Franklin County17/sq mi
83Sac County17/sq mi
84Ida County16/sq mi
85Palo Alto County16/sq mi
86Osceola County15/sq mi
87Greene County15/sq mi
88Kossuth County15/sq mi
89Van Buren County15/sq mi
90Decatur County14/sq mi
91Adair County13/sq mi
92Fremont County13/sq mi
93Audubon County13/sq mi
94Monona County12/sq mi
95Wayne County12/sq mi
96Pocahontas County12/sq mi
97Taylor County11/sq mi
98Ringgold County9/sq mi
99Adams County9/sq mi

Cities & places

Top 100.
#NamePeople / sq mi
1University Heights4,746/sq mi
2Windsor Heights3,605/sq mi
3Newhall3,355/sq mi
4Lakeside2,997/sq mi
5Iowa City2,921/sq mi
6Lambs Grove2,905/sq mi
7Panorama Park2,455/sq mi
8Clive2,453/sq mi
9Des Moines2,410/sq mi
10Ames2,344/sq mi
11Readlyn2,325/sq mi
12Marion2,316/sq mi
13Madrid2,289/sq mi
14New London2,215/sq mi
15Ankeny2,211/sq mi
16Anamosa2,200/sq mi
17North Liberty2,180/sq mi
18Alta2,174/sq mi
19West Liberty2,148/sq mi
20Emerson2,147/sq mi
21Atkins2,139/sq mi
22Atalissa2,134/sq mi
23Carter Lake2,103/sq mi
24Silver City2,079/sq mi
25Storm Lake2,078/sq mi
26Gilbertville2,059/sq mi
27Urbandale2,042/sq mi
28Fairbank2,037/sq mi
29Bennett2,018/sq mi
30Arthur2,012/sq mi
31Rose Hill2,008/sq mi
32Moville2,003/sq mi
33Colesburg1,993/sq mi
34Victor1,966/sq mi
35Ainsworth1,960/sq mi
36Early1,945/sq mi
37Solon1,935/sq mi
38Park View1,932/sq mi
39Grandview1,920/sq mi
40Melvin1,915/sq mi
41Baxter1,914/sq mi
42Dubuque1,895/sq mi
43Treynor1,890/sq mi
44Ruthven1,877/sq mi
45Sully1,875/sq mi
46Asbury1,872/sq mi
47Bettendorf1,845/sq mi
48Keystone1,841/sq mi
49Cedar Rapids1,834/sq mi
50Coralville1,803/sq mi
51Hospers1,790/sq mi
52Royal1,756/sq mi
53Glenwood1,751/sq mi
54Nichols1,725/sq mi
55Sergeant Bluff1,713/sq mi
56Leighton1,709/sq mi
57Carroll1,707/sq mi
58Merrill1,697/sq mi
59Keomah Village1,693/sq mi
60Archer1,686/sq mi
61New Albin1,680/sq mi
62Griswold1,675/sq mi
63Grinnell1,675/sq mi
64Burlington1,652/sq mi
65Kellogg1,648/sq mi
66Laurens1,630/sq mi
67New Liberty1,629/sq mi
68Knoxville1,623/sq mi
69Bouton1,609/sq mi
70Mediapolis1,608/sq mi
71Clarence1,606/sq mi
72Wheatland1,606/sq mi
73Osage1,597/sq mi
74Hull1,588/sq mi
75Andrew1,585/sq mi
76Sibley1,580/sq mi
77Ottumwa1,578/sq mi
78Onslow1,577/sq mi
79Davenport1,574/sq mi
80Earlville1,569/sq mi
81State Center1,552/sq mi
82Fort Dodge1,548/sq mi
83Martensdale1,547/sq mi
84Altoona1,547/sq mi
85Henderson1,545/sq mi
86Durant1,543/sq mi
87Milford1,541/sq mi
88Fredonia1,541/sq mi
89Tipton1,538/sq mi
90Westphalia1,533/sq mi
91Sloan1,528/sq mi
92Dixon1,522/sq mi
93Hiawatha1,507/sq mi
94Titonka1,500/sq mi
95Bellevue1,498/sq mi
96North English1,494/sq mi
97Wapello1,490/sq mi
98Earlham1,489/sq mi
99Chapin1,481/sq mi
100West Des Moines1,472/sq mi

Nationwide

1

Other rankings in Iowa

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