Iowa statistical areas

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.

## Statistical areas

[edit]

The Office of Management and Budget (OMB) has designated more than 1,000 statistical areas for the United States and Puerto Rico.[2] These statistical areas are important geographic delineations of population clusters used by the OMB, the United States Census Bureau, planning organizations, and federal, state, and local government entities.

The OMB defines a core-based statistical area (commonly referred to as a CBSA) as the county or counties (or county-equivalents) surrounding at least one densely-settled core of at least 10,000 population,[2] "plus adjacent counties having a high degree of social and economic integration with the core as measured through commuting ties with the counties containing the core".[2] The OMB further divides core-based statistical areas based on population into metropolitan statistical areas (MSAs) for those with at least 50,000 and micropolitan statistical areas (μSAs) for those with 10,000 to 49,999 people.[2]

The OMB defines a combined statistical area (CSA) as two or more adjacent core-based statistical areas where the employment interchange rate (% commuting from A to B plus % commuting from B to A) is at least 15%.[2] The primary statistical areas (PSAs) include all combined statistical areas and any core-based statistical area that is not a constituent of a combined statistical area.

## Table

[edit]

The 31 United States statistical areas and 99 counties of the State of Iowa[a]

Combined statistical area[1] | 2023 population (est.)[3] | Core-based statistical area[1] | 2023 population (est.)[3] | County  | 2023 population (est.)[3]

|
|
|
|
|

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

[edit]

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 Iowa[b]

2023 rank  | Core-based statistical area[1] | Population

|
|

2023 estimate[3] | Change  | 2020 Census[4] | Change  | 2010 Census[5]
1 | Des Moines-West Des Moines, IA MSA | 737,164 | +3.90% | 709,466 | +16.98% | 606,475
2 | Cedar Rapids, IA MSA | 275,668 | −0.31% | 276,520 | +7.20% | 257,940
3 | Iowa City, IA MSA | 180,088 | +2.66% | 175,419 | +14.96% | 152,586
4 | Davenport-Moline-Rock Island, IA-IL MSA (IA) | 174,270 | −0.23% | 174,669 | +5.72% | 165,224
5 | Waterloo-Cedar Falls, IA MSA | 168,162 | −0.18% | 168,461 | +0.38% | 167,819
6 | Ames, IA MSA | 125,156 | −0.08% | 125,252 | +8.12% | 115,848
7 | Omaha, NE-IA MSA (IA) | 122,482 | −0.20% | 122,733 | −0.33% | 123,145
8 | Sioux City, IA-NE-SD MSA (IA) | 105,951 | +0.01% | 105,941 | +3.69% | 102,172
9 | Dubuque, IA MSA | 98,887 | −0.38% | 99,266 | +5.99% | 93,653
10 | Mason City, IA μSA | 49,703 | −1.71% | 50,570 | −2.28% | 51,749
11 | Clinton, IA μSA | 46,158 | −0.65% | 46,460 | −5.41% | 49,116
12 | Muscatine, IA μSA | 42,218 | −2.35% | 43,235 | +1.15% | 42,745
13 | Marshalltown, IA μSA | 40,014 | −0.23% | 40,105 | −1.34% | 40,648
14 | Burlington, IA-IL μSA (IA) | 38,253 | −1.69% | 38,910 | −3.51% | 40,325
15 | Fort Dodge, IA μSA | 36,485 | −1.39% | 36,999 | −2.67% | 38,013
16 | Ottumwa, IA μSA | 35,166 | −0.76% | 35,437 | −0.53% | 35,625
17 | Pella, IA μSA | 33,770 | +1.07% | 33,414 | +0.32% | 33,309
18 | Fort Madison, IA μSA | 32,565 | −2.95% | 33,555 | −6.43% | 35,862
19 | Le Mars, IA μSA | 25,722 | +0.09% | 25,698 | +2.85% | 24,986
20 | Oskaloosa, IA μSA | 21,874 | −1.42% | 22,190 | −0.85% | 22,381
21 | Storm Lake, IA μSA | 20,567 | −1.23% | 20,823 | +2.78% | 20,260
22 | Carroll, IA μSA | 20,522 | −1.15% | 20,760 | −0.27% | 20,816
23 | Spirit Lake, IA μSA | 18,056 | +1.99% | 17,703 | +6.22% | 16,667
24 | Spencer, IA μSA | 16,511 | +0.78% | 16,384 | −1.70% | 16,667
| Burlington, IA-IL μSA | 44,341 | −2.11% | 45,297 | −4.95% | 47,656
| Davenport-Moline-Rock Island, IA-IL MSA | 379,441 | −1.27% | 384,324 | +1.49% | 378,666
| Omaha, NE-IA MSA | 983,969 | +1.69% | 967,604 | +11.82% | 865,350
| Sioux City, IA-NE-SD MSA | 144,402 | +0.05% | 144,334 | +4.91% | 137,577

## Combined statistical areas

[edit]

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 Iowa[c]

2023 rank  | Combined statistical area[1] | Population

|
|

2023 estimate[3] | Change  | 2020 Census[4] | Change  | 2010 Census[5]
1 | Des Moines-West Des Moines-Ames, IA CSA | 917,964 | +3.10% | 890,322 | +14.44% | 778,013
2 | Cedar Rapids-Iowa City, IA CSA | 455,756 | +0.84% | 451,939 | +10.09% | 410,526
3 | Davenport-Moline, IA-IL CSA (IA) | 262,646 | −0.65% | 264,364 | +2.83% | 257,085
4 | Sioux City-Le Mars, IA-NE-SD CSA (IA) | 131,673 | +0.03% | 131,639 | +3.52% | 127,158
5 | Omaha-Fremont, NE-IA CSA (IA) | 122,482 | −0.20% | 122,733 | −0.33% | 123,145
6 | Burlington-Fort Madison, IA-IL CSA (IA) | 70,818 | −2.27% | 72,465 | −4.89% | 76,187
7 | Spencer-Spirit Lake, IA CSA | 34,567 | +1.41% | 34,087 | +2.26% | 33,334
| Burlington-Fort Madison, IA-IL CSA | 76,906 | −2.47% | 78,852 | −5.59% | 83,518
| Davenport-Moline, IA-IL CSA | 467,817 | −1.31% | 474,019 | +0.74% | 470,527
| Omaha-Fremont, NE-IA CSA | 1,021,156 | +1.63% | 1,004,771 | +11.39% | 902,041
| Sioux City-Le Mars, IA-NE-SD CSA | 170,124 | +0.05% | 170,032 | +4.59% | 162,563

## See also

[edit]

* Geography portal
* United States portal
* Iowa portal

* Geography of Iowa
* Demographics of Iowa

## Notes

[edit]

1. ^ An out-of-state area and its population are displayed in green. An area that extends into more than one state is displayed in purple. A purple population number over a black population number show the total population versus the in-state population.
2. ^ For CBSAs comprising populations from multiple states, they are listed twice to show both their intrastate population within that CBSA as well as the CBSA's total population. Only the intrastate population is ranked.
3. ^ For CSAs comprising populations from multiple states, they are listed twice to show both their intrastate population within that CSA as well as the CSA's total population. Only the intrastate population is ranked.

## References

[edit]

1. ^ a b c d e Revised Delineations of Metropolitan Statistical Areas, Micropolitan Statistical Areas, and Combined Statistical Areas, and Guidance on Uses of the Delineations of These Areas (July 21, 2023). "0MB BULLETIN NO. 23-01" (PDF). Office of Management and Budget. Retrieved October 23, 2023.`{{cite web}}`: CS1 maint: multiple names: authors list (link)
2. ^ a b c d e "2020 Standards for Delineating Core Based Statistical Areas". Office of Management and Budget. July 16, 2021. Retrieved December 13, 2021.
3. ^ a b c d e "County Population Totals and Components of Change: 2020-2023". United States Census Bureau, Population Division. March 2023. Retrieved May 21, 2024.
4. ^ a b "PROFILE OF GENERAL POPULATION AND HOUSING CHARACTERISTICS". U.S. Census Bureau. 2020. Retrieved May 21, 2024.
5. ^ a b "Annual Estimates of the Resident Population for Counties: April 1, 2010 to July 1, 2019". U.S. Census Bureau. 2019. Retrieved May 21, 2024.

## External links

[edit]

Iowa at Wikipedia's sister projects

* Media from Commons
* News from Wikinews
* Quotations from Wikiquote
* Travel information from Wikivoyage

* Office of Management and Budget
* United States Census Bureau

* v
* t
* e

State of Iowa

Des Moines (capital)

Topics|

* Archaeology
* Area codes
* Attorney General
* Auditor of State
* Capitol
* Climate change
* Code
* Congressional districts
* Crime
* Delegations
* Representatives
* Senators
* Elections
* Caucuses
* Environment
* Flag
* Gambling
* Governor
* Gun laws
* History
* Historic Places
* Index
* Legislature
* House
* Senate
* LGBT rights
* Museums
* People
* Native Americans
* Political parties
* Democratic
* Libertarian
* Republican
* Seal
* Secretary of Agriculture
* Secretary of State
* State Parks
* Supreme Court
* Symbols
* Treasurer of State

Regions|

* Coteau des Prairies
* Des Moines metropolitan area
* Dissected Till Plains
* Driftless Area
* Great River Road
* Honey Lands
* Iowa Great Lakes
* Loess Hills
* Omaha–Council Bluffs metropolitan area
* Quad Cities
* Siouxland

Largest cities|

* Ames
* Ankeny
* Bettendorf
* Burlington
* Cedar Falls
* Cedar Rapids
* Clinton
* Council Bluffs
* Davenport
* Des Moines
* Dubuque
* Fort Dodge
* Iowa City
* Marion
* Marshalltown
* Mason City
* Muscatine
* Ottumwa
* Sioux City
* Urbandale
* Waterloo
* West Des Moines

Counties|

* Adair
* Adams
* Allamakee
* Appanoose
* Audubon
* Benton
* Black Hawk
* Boone
* Bremer
* Buchanan
* Buena Vista
* Butler
* Calhoun
* Carroll
* Cass
* Cedar
* Cerro Gordo
* Cherokee
* Chickasaw
* Clarke
* Clay
* Clayton
* Clinton
* Crawford
* Dallas
* Davis
* Decatur
* Delaware
* Des Moines
* Dickinson
* Dubuque
* Emmet
* Fayette
* Floyd
* Franklin
* Fremont
* Greene
* Grundy
* Guthrie
* Hamilton
* Hancock
* Hardin
* Harrison
* Henry
* Howard
* Humboldt
* Ida
* Iowa
* Jackson
* Jasper
* Jefferson
* Johnson
* Jones
* Keokuk
* Kossuth
* Lee
* Linn
* Louisa
* Lucas
* Lyon
* Madison
* Mahaska
* Marion
* Marshall
* Mills
* Mitchell
* Monona
* Monroe
* Montgomery
* Muscatine
* O'Brien
* Osceola
* Page
* Palo Alto
* Plymouth
* Pocahontas
* Polk
* Pottawattamie
* Poweshiek
* Ringgold
* Sac
* Scott
* Shelby
* Sioux
* Story
* Tama
* Taylor
* Union
* Van Buren
* Wapello
* Warren
* Washington
* Wayne
* Webster
* Winnebago
* Winneshiek
* Woodbury
* Worth
* Wright

Iowa portal

* v
* t
* e

Lists of United States statistical areas by state, district, territory, or type

States|

* Alabama
* Alaska
* Arizona
* Arkansas
* California
* Colorado
* Connecticut
* Delaware
* Florida
* Georgia
* Hawaiʻi
* Idaho
* Illinois
* Indiana
* Iowa
* Kansas
* Kentucky
* Louisiana
* Maine
* Maryland
* Massachusetts
* Michigan
* Minnesota
* Mississippi
* Missouri
* Montana
* Nebraska
* Nevada
* New Hampshire
* New Jersey
* New Mexico
* New York
* North Carolina
* North Dakota
* Ohio
* Oklahoma
* Oregon
* Pennsylvania
* Rhode Island
* South Carolina
* South Dakota
* Tennessee
* Texas
* Utah
* Vermont
* Virginia
* Washington
* West Virginia
* Wisconsin
* Wyoming

Federal district|

* District of Columbia

Insular area|

* Puerto Rico

type|

* Combined statistical areas
* Metropolitan statistical areas
* Micropolitan statistical areas

42°04′30″N 93°29′46″W﻿ / ﻿42.0751°N 93.4960°W﻿ / 42.0751; -93.4960﻿ (State of Iowa)
*[IA]: Iowa
*[v]: View this template
*[t]: Discuss this template
*[e]: Edit this template