The U.S. State of Iowa currently has 31 statistical areas that have been delineated by the Office of Management and Budget (OMB). On July 21, 2023, the OMB delineated seven combined statistical areas, nine metropolitan statistical areas, and 15 micropolitan statistical areas in Iowa.[1] As of 2023, the largest of these is the Des Moines-West Des Moines-Ames, IA CSA, comprising the area around Iowa's capital and largest city, Des Moines.
Template:US state statistical areas boilerplate
Table
The 31 United States statistical areas and 99 counties of the State of IowaTemplate:Efn
| Combined statistical area[1]
|
2023 population (est.)[2]
|
Core-based statistical area[1]
|
2023 population (est.)[2]
|
County
|
2023 population (est.)[2]
|
| Des Moines-West Des Moines-Ames, IA CSA
|
917,964
|
Des Moines-West Des Moines, IA MSA
|
737,164
|
Polk County, Iowa
|
505,255
|
| Dallas County, Iowa
|
111,092
|
| Warren County, Iowa
|
55,205
|
| Jasper County, Iowa
|
37,919
|
| Madison County, Iowa
|
16,971
|
| Guthrie County, Iowa
|
10,722
|
| Ames, IA MSA
|
125,156
|
Story County, Iowa
|
98,566
|
| Boone County, Iowa
|
26,590
|
| Pella, IA μSA
|
33,770
|
Marion County, Iowa
|
33,770
|
| Oskaloosa, IA μSA
|
21,874
|
Mahaska County, Iowa
|
21,874
|
| Cedar Rapids-Iowa City, IA CSA
|
455,756
|
Cedar Rapids, IA MSA
|
275,668
|
Linn County, Iowa
|
228,972
|
| Benton County, Iowa
|
25,796
|
| Jones County, Iowa
|
20,900
|
| Iowa City, IA MSA
|
180,088
|
Johnson County, Iowa
|
157,528
|
| Washington County, Iowa
|
22,560
|
| Davenport-Moline, IA-IL CSA
|
467,817
262,646 (IA)
|
Davenport-Moline-Rock Island, IA-IL MSA
|
379,441
174,270 (IA)
|
Scott County, Iowa
|
174,270
|
| Rock Island County, Illinois
|
141,236
|
| Henry County, Illinois
|
48,448
|
| Mercer County, Illinois
|
15,487
|
| Clinton, IA μSA
|
46,158
|
Clinton County, Iowa
|
46,158
|
| Muscatine, IA μSA
|
42,218
|
Muscatine County, Iowa
|
42,218
|
| none
|
Waterloo-Cedar Falls, IA MSA
|
168,162
|
Black Hawk County, Iowa
|
130,471
|
| Bremer County, Iowa
|
25,307
|
| Grundy County, Iowa
|
12,384
|
| Sioux City-Le Mars, IA-NE-SD CSA
|
170,124
131,673 (IA)
|
Sioux City, IA-NE-SD MSA
|
144,402
105,951 (IA)
|
Woodbury County, Iowa
|
105,951
|
| Dakota County, Nebraska
|
21,268
|
| Union County, South Dakota
|
17,183
|
| Le Mars, IA μSA
|
25,722
|
Plymouth County, Iowa
|
25,722
|
| Omaha-Fremont, NE-IA CSA
|
1,021,156
122,482 (IA)
|
Omaha, NE-IA MSA
|
983,969
122,482 (IA)
|
Douglas County, Nebraska
|
589,540
|
| Sarpy County, Nebraska
|
199,886
|
| Pottawattamie County, Iowa
|
93,179
|
| Cass County, Nebraska
|
27,446
|
| Saunders County, Nebraska
|
23,463
|
| Washington County, Nebraska
|
21,152
|
| Harrison County, Iowa
|
14,670
|
| Mills County, Iowa
|
14,633
|
| Fremont, NE μSA
|
37,187
|
Dodge County, Nebraska
|
37,187
|
| none
|
Dubuque, IA MSA
|
98,887
|
Dubuque County, Iowa
|
98,887
|
| Burlington-Fort Madison, IA-IL CSA
|
76,906
70,818 (IA)
|
Burlington, IA-IL μSA
|
44,341
38,253 (IA)
|
Des Moines County, Iowa
|
38,253
|
| Henderson County, Illinois
|
6,088
|
| Fort Madison, IA μSA
|
32,565
|
Lee County, Iowa
|
32,565
|
| none
|
Mason City, IA μSA
|
49,703
|
Cerro Gordo County, Iowa
|
42,406
|
| Worth County, Iowa
|
7,297
|
| Marshalltown, IA μSA
|
40,014
|
Marshall County, Iowa
|
40,014
|
| Fort Dodge, IA μSA
|
36,485
|
Webster County, Iowa
|
36,485
|
| Ottumwa, IA μSA
|
35,166
|
Wapello County, Iowa
|
35,166
|
| Spencer-Spirit Lake, IA CSA
|
34,567
|
Spirit Lake, IA μSA
|
18,056
|
Dickinson County, Iowa
|
18,056
|
| Spencer, IA μSA
|
16,511
|
Clay County, Iowa
|
16,511
|
| none
|
Storm Lake, IA μSA
|
20,567
|
Buena Vista County, Iowa
|
20,567
|
| Carroll, IA μSA
|
20,522
|
Carroll County, Iowa
|
20,522
|
| none
|
Sioux County, Iowa
|
36,246
|
| Buchanan County, Iowa
|
20,691
|
| Winneshiek County, Iowa
|
19,815
|
| Henry County, Iowa
|
19,547
|
| Jackson County, Iowa
|
19,342
|
| Fayette County, Iowa
|
19,210
|
| Poweshiek County, Iowa
|
18,453
|
| Cedar County, Iowa
|
18,302
|
| Delaware County, Iowa
|
17,600
|
| Clayton County, Iowa
|
16,969
|
| Tama County, Iowa
|
16,833
|
| Hardin County, Iowa
|
16,463
|
| Iowa County, Iowa
|
16,381
|
| Crawford County, Iowa
|
16,013
|
| Jefferson County, Iowa
|
15,440
|
| Floyd County, Iowa
|
15,326
|
| Page County, Iowa
|
15,014
|
| Hamilton County, Iowa
|
14,729
|
| Kossuth County, Iowa
|
14,396
|
| Butler County, Iowa
|
14,172
|
| Allamakee County, Iowa
|
14,074
|
| O'Brien County, Iowa
|
14,012
|
| Cass County, Iowa
|
13,130
|
| Wright County, Iowa
|
12,656
|
| Lyon County, Iowa
|
12,324
|
| Appanoose County, Iowa
|
12,119
|
| Union County, Iowa
|
11,906
|
| Shelby County, Iowa
|
11,806
|
| Chickasaw County, Iowa
|
11,658
|
| Cherokee County, Iowa
|
11,605
|
| Hancock County, Iowa
|
10,615
|
| Winnebago County, Iowa
|
10,571
|
| Mitchell County, Iowa
|
10,518
|
| Louisa County, Iowa
|
10,513
|
| Montgomery County, Iowa
|
10,139
|
| Keokuk County, Iowa
|
9,914
|
| Franklin County, Iowa
|
9,875
|
| Calhoun County, Iowa
|
9,763
|
| Sac County, Iowa
|
9,686
|
| Clarke County, Iowa
|
9,588
|
| Humboldt County, Iowa
|
9,500
|
| Howard County, Iowa
|
9,376
|
| Emmet County, Iowa
|
9,229
|
| Davis County, Iowa
|
9,169
|
| Palo Alto County, Iowa
|
8,810
|
| Lucas County, Iowa
|
8,747
|
| Greene County, Iowa
|
8,584
|
| Monona County, Iowa
|
8,493
|
| Decatur County, Iowa
|
7,665
|
| Monroe County, Iowa
|
7,504
|
| Adair County, Iowa
|
7,389
|
| Van Buren County, Iowa
|
7,266
|
| Pocahontas County, Iowa
|
6,976
|
| Ida County, Iowa
|
6,833
|
| Wayne County, Iowa
|
6,557
|
| Fremont County, Iowa
|
6,458
|
| Osceola County, Iowa
|
5,978
|
| Taylor County, Iowa
|
5,924
|
| Audubon County, Iowa
|
5,534
|
| Ringgold County, Iowa
|
4,642
|
| Adams County, Iowa
|
3,544
|
| State of Iowa
|
3,207,004
|
Core-based statistical areas
The following table provides the in-state population ranking of each CBSA along with its rate of population change over time.
The 24 core-based statistical areas of the State of IowaTemplate:Efn
| 2023 rank
|
Core-based statistical area[1]
|
Population
|
| 2023 estimate[2]
|
Change
|
2020 Census[3]
|
Change
|
2010 Census[4]
|
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Des Moines-West Des Moines, IA MSA
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Cedar Rapids, IA MSA
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Iowa City, IA MSA
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Davenport-Moline-Rock Island, IA-IL MSA (IA)
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Waterloo-Cedar Falls, IA MSA
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Ames, IA MSA
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Omaha, NE-IA MSA (IA)
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Sioux City, IA-NE-SD MSA (IA)
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Dubuque, IA MSA
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Mason City, IA μSA
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Clinton, IA μSA
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Muscatine, IA μSA
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Marshalltown, IA μSA
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Burlington, IA-IL μSA (IA)
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Fort Dodge, IA μSA
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Ottumwa, IA μSA
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Pella, IA μSA
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Fort Madison, IA μSA
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Le Mars, IA μSA
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Oskaloosa, IA μSA
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Storm Lake, IA μSA
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Carroll, IA μSA
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Spirit Lake, IA μSA
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Spencer, IA μSA
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|
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Burlington, IA-IL μSA
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|
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Davenport-Moline-Rock Island, IA-IL MSA
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|
|
Omaha, NE-IA MSA
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|
|
Sioux City, IA-NE-SD MSA
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Combined statistical areas
The following table provides the in-state population ranking of each CSA along with its rate of population change over time.
The seven combined statistical areas of the State of IowaTemplate:Efn
| 2023 rank
|
Combined statistical area[1]
|
Population
|
| 2023 estimate[2]
|
Change
|
2020 Census[3]
|
Change
|
2010 Census[4]
|
| Template:Nts
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Des Moines-West Des Moines-Ames, IA CSA
Template:Changes
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| Template:Nts
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Cedar Rapids-Iowa City, IA CSA
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| Template:Nts
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Davenport-Moline, IA-IL CSA (IA)
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| Template:Nts
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Sioux City-Le Mars, IA-NE-SD CSA (IA)
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| Template:Nts
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Omaha-Fremont, NE-IA CSA (IA)
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| Template:Nts
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Burlington-Fort Madison, IA-IL CSA (IA)
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| Template:Nts
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Spencer-Spirit Lake, IA CSA
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|
|
Burlington-Fort Madison, IA-IL CSA
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|
|
Davenport-Moline, IA-IL CSA
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|
|
Omaha-Fremont, NE-IA CSA
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|
|
Sioux City-Le Mars, IA-NE-SD CSA
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See also
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Notes
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References
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