Iowa statistical areas

Last updated

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.

Contents

Background

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

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] County2023 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

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 μSA44,341−2.11%45,297−4.95%47,656
Davenport-Moline-Rock Island, IA-IL MSA379,441−1.27%384,324+1.49%378,666
Omaha, NE-IA MSA983,969+1.69%967,604+11.82%865,350
Sioux City, IA-NE-SD MSA144,402+0.05%144,334+4.91%137,577

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 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 CSA76,906−2.47%78,852−5.59%83,518
Davenport-Moline, IA-IL CSA467,817−1.31%474,019+0.74%470,527
Omaha-Fremont, NE-IA CSA1,021,156+1.63%1,004,771+11.39%902,041
Sioux City-Le Mars, IA-NE-SD CSA170,124+0.05%170,032+4.59%162,563

See also

Notes

  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.

Related Research Articles

The U.S. state of Indiana currently has 50 statistical areas that have been delineated by the Office of Management and Budget (OMB). On July 21, 2023, the OMB delineated ten combined statistical areas, 15 metropolitan statistical areas, and 25 micropolitan statistical areas in Indiana. As of 2023, the largest of these was the Indianapolis-Carmel-Muncie, IN Combined Statistical Area, consisting of Indianapolis and its surrounding counties.

The U.S. State of Illinois currently has 47 statistical areas that have been delineated by the Office of Management and Budget (OMB). On July 21, 2023, the OMB delineated 14 combined statistical areas, 12 metropolitan statistical areas, and 21 micropolitan statistical areas in Illinois. As of 2023, the largest of these is the Chicago-Naperville, IL-IN-WI CSA, comprising the area around Illinois' largest city, Chicago.

The U.S. State of Ohio currently has 55 statistical areas that have been delineated by the Office of Management and Budget (OMB). On July 21, 2023, the OMB delineated 11 combined statistical areas, 15 metropolitan statistical areas, and 29 micropolitan statistical areas in Ohio. As of 2023, the largest of these is the Cleveland-Akron-Canton, OH CSA, comprising Cleveland and other cities in the northeast region of the state.

The United States Commonwealth of Pennsylvania currently has 48 statistical areas that have been delineated by the Office of Management and Budget (OMB). On July 21, 2023, the OMB delineated 12 combined statistical areas, 16 metropolitan statistical areas, and 20 micropolitan statistical areas in Pennsylvania. As of 2023, the largest of these is the Philadelphia-Reading-Camden, PA-NJ-DE-MD CSA, comprising the area around the state's largest city of Philadelphia in the southeast region of the state.

The U.S. state of New York currently has 34 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, 13 metropolitan statistical areas and 14 micropolitan statistical areas in New York. As of 2023, the largest of these is the New York-Newark, NY-NJ-CT-PA CSA, which includes New York City and its surrounding suburbs; with over 21 million people, it is the largest primary statistical area in the United States.

The U.S. State of Wisconsin currently has 40 statistical areas that have been delineated by the Office of Management and Budget (OMB). On July 21, 2023, the OMB delineated 11 combined statistical areas, 15 metropolitan statistical areas, and 14 micropolitan statistical areas in Wisconsin. As of 2023, the largest of these is the Milwaukee-Racine-Waukesha, WI CSA, comprising the area around the Wisconsin's largest city, Milwaukee.

The U.S. State of California currently has 42 statistical areas that have been delineated by the federal Office of Management and Budget (OMB).

The U.S. State of Alabama currently has 35 statistical areas that have been delineated by the Office of Management and Budget (OMB).

The U.S. State of Arkansas currently has 25 statistical areas that have been delineated by the Office of Management and Budget (OMB). On July 21, 2023, the OMB delineated four combined statistical areas, seven metropolitan statistical areas, and 14 micropolitan statistical areas in Arkansas. As of 2023, the most populous statistical area in the state is Little Rock-North Little Rock, AR CSA, comprising the metro area of its capital and largest city, Little Rock.

The U.S. State of Delaware currently has four statistical areas that have been delineated by the Office of Management and Budget (OMB). On July 21, 2023, the OMB delineated one combined statistical area, two metropolitan statistical areas, and one micropolitan statistical area in Delaware. As of 2023, the largest statistical area in the state is the Philadelphia-Reading-Camden, PA-NJ-DE-MD Combined Statistical Area, which includes Delaware's largest city, Wilmington.

The United States District of Columbia(Washington, D.C.) is the primary city of two statistical areas that have been delineated by the Office of Management and Budget (OMB). On July 21, 2023, the OMB delineated the Washington-Arlington-Alexandria, DC-VA-MD-WV MSA and the more extensive Washington-Baltimore-Arlington, DC-MD-VA-WV-PA CSA.

The U.S. State of Florida currently has 35 statistical areas that have been delineated by the Office of Management and Budget (OMB). On July 21, 2023, the OMB delineated 7 combined statistical areas, 22 metropolitan statistical areas, and 6 micropolitan statistical areas in Florida. As of 2023, the largest of these is the Miami-Port St. Lucie-Fort Lauderdale, FL CSA, inclusive of the southeastern region of the state centered on Miami.

The U.S. State of Georgia currently has 46 statistical areas that have been delineated by the Office of Management and Budget (OMB). On July 21, 2023, the OMB delineated 7 combined statistical areas, 15 metropolitan statistical areas, and 24 micropolitan statistical areas within Georgia. As of 2023, the largest of these is the Atlanta--Athens-Clarke County--Sandy Springs, GA-AL CSA, encompassing 42 counties in Georgia and one in Alabama, anchored by Georgia's capital and largest city, Atlanta.

The U.S. State of Idaho currently has 22 statistical areas that have been delineated by the Office of Management and Budget (OMB). On July 21, 2023, the OMB delineated five combined statistical areas, seven metropolitan statistical areas, and 10 micropolitan statistical areas in Idaho. As of 2023, the largest of these is the Boise City-Mountain Home-Ontario, ID-OR CSA, anchored by Idaho's capital and largest city, Boise.

The U.S. State of Virginia currently has 19 statistical areas that have been delineated by the Office of Management and Budget (OMB). On July 21, 2023, the OMB delineated four combined statistical areas, 11 metropolitan statistical areas, and four micropolitan statistical areas in Virginia. As of 2023, the largest of these is the Washington-Baltimore-Arlington, DC-MD-VA-WV-PA CSA, comprising Washington, D.C. and its suburbs.

The U.S. State of West Virginia currently has 20 statistical areas that have been delineated by the Office of Management and Budget (OMB). On July 21, 2023, the OMB delineated five combined statistical areas, 10 metropolitan statistical areas, and five micropolitan statistical areas in West Virginia. As of 2023, the largest of these is the Charleston-Huntington-Ashland, WV-OH-KY CSA, which includes West Virginia's capital and largest city, Charleston.

The U.S. State of Missouri currently has 31 statistical areas that have been delineated by the Office of Management and Budget (OMB). On March 6, 2020, the OMB delineated six combined statistical areas, seven metropolitan statistical areas, and 18 micropolitan statistical areas in Missouri. As of 2023, the largest of these is the St. Louis-St. Charles-Farmington, MO-IL CSA, comprising the area around St. Louis.

The U.S. State of Nebraska currently has 16 statistical areas that have been delineated by the Office of Management and Budget (OMB). On July 21, 2023, the OMB delineated three combined statistical areas, four metropolitan statistical areas, and nine micropolitan statistical areas in Nebraska. As of 2023, the largest of these is the Omaha-Fremont, NE-IA CSA, comprising the area around Nebraska's largest city, Omaha.

The U.S. State of Oregon currently has 24 statistical areas that have been delineated by the Office of Management and Budget (OMB). On July 21, 2023, the OMB delineated four combined statistical areas, eight metropolitan statistical areas, and 12 micropolitan statistical areas in Oregon. As of 2023, the largest of these is the Portland-Vancouver-Salem, OR-WA CSA, anchored by Oregon's largest city, Portland and including its capital, Salem.

The U.S. State of South Carolina currently has 20 statistical areas that have been delineated by the Office of Management and Budget (OMB). On July 21, 2023, the OMB delineated four combined statistical areas, ten metropolitan statistical areas, and six micropolitan statistical areas in South Carolina. As of 2023, the largest of these is the Greenville-Spartanburg-Anderson, SC CSA, comprising the area around Greenville in the state's Upcountry.

References

  1. 1 2 3 4 5 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. 1 2 3 4 5 "2020 Standards for Delineating Core Based Statistical Areas". Office of Management and Budget. July 16, 2021. Retrieved December 13, 2021.
  3. 1 2 3 4 5 "County Population Totals and Components of Change: 2020-2023". United States Census Bureau, Population Division. March 2023. Retrieved May 21, 2024.
  4. 1 2 "PROFILE OF GENERAL POPULATION AND HOUSING CHARACTERISTICS". U.S. Census Bureau. 2020. Retrieved May 21, 2024.
  5. 1 2 "Annual Estimates of the Resident Population for Counties: April 1, 2010 to July 1, 2019". U.S. Census Bureau. 2019. Retrieved May 21, 2024.

42°04′30″N93°29′46″W / 42.0751°N 93.4960°W / 42.0751; -93.4960 (State of Iowa)