Illinois statistical areas

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.[1] As of 2023, the largest of these is the Chicago-Naperville, IL-IN-WI CSA, comprising the area around Illinois' largest city, Chicago.

## 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 47 United States statistical areas and 102 counties of the State of Illinois[a]

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

|
|
|
|
|
|
|

Chicago-Naperville, IL-IN-WI CSA | 9,794,558
8,791,936 (IL) | Chicago-Naperville-Elgin, IL-IN MSA | 9,262,825
8,539,397 (IL) | Cook County, Illinois | 5,087,072  | Chicago-Naperville-Schaumburg, IL MD | 7,075,391
DuPage County, Illinois | 921,213
Will County, Illinois | 700,728
McHenry County, Illinois | 312,800
Grundy County, Illinois | 53,578
Kane County, Illinois | 514,982  | Elgin, IL MD | 755,246
Kendall County, Illinois | 139,976
DeKalb County, Illinois | 100,288
Lake County, Indiana | 500,598 | Lake County-Porter County-Jasper County, IN MD | 723,428
Porter County, Indiana | 175,335
Jasper County, Indiana | 33,535
Newton County, Indiana | 13,960
Lake County, Illinois | 708,760  | Lake County, IL MD | 708,760
Kenosha, WI MSA | 167,488 | Kenosha County, Wisconsin | 167,488 | none
Ottawa, IL μSA | 146,599  | LaSalle County, Illinois | 108,309
Bureau County, Illinois | 32,729
Putnam County, Illinois | 5,561
Michigan City-La Porte, IN MSA | 111,706 | LaPorte County, Indiana | 111,706
Kankakee-Bradley, IL MSA | 105,940  | Kankakee County, Illinois | 105,940
St. Louis-St. Charles-Farmington, MO-IL CSA | 2,900,730[b][1]
708,061 (IL) | St. Louis, MO-IL MSA | 2,796,999
671,388 (IL) | St. Louis County, Missouri | 987,059
St. Charles County, Missouri | 416,659
City of St. Louis, Missouri | 281,754
Madison County, Illinois | 262,752
St. Clair County, Illinois | 251,018
Jefferson County, Missouri | 231,230
Franklin County, Missouri | 106,404
Lincoln County, Missouri | 64,699
Macoupin County, Illinois | 44,018
Warren County, Missouri | 37,806
Clinton County, Illinois | 36,785
Monroe County, Illinois | 34,957
Jersey County, Illinois | 21,091
Bond County, Illinois | 16,450
Calhoun County, Illinois | 4,317
Farmington, MO μSA | 67,058 | Saint Francois County, Missouri | 67,058
Centralia, IL μSA | 36,673  | Marion County, Illinois | 36,673
Rockford-Freeport-Rochelle, IL CSA | 428,494  | Rockford, IL MSA | 334,124  | Winnebago County, Illinois | 280,922
Boone County, Illinois | 53,202
Rochelle, IL μSA | 51,265  | Ogle County, Illinois | 51,265
Freeport, IL μSA | 43,105  | Stephenson County, Illinois | 43,105
Peoria-Canton, IL CSA | 394,781  | Peoria, IL MSA | 362,240  | Peoria County, Illinois | 177,513
Tazewell County, Illinois | 129,541
Woodford County, Illinois | 38,285
Marshall County, Illinois | 11,683
Stark County, Illinois | 5,218
Canton, IL μSA | 32,541  | Fulton County, Illinois | 32,541
Champaign-Urbana-Danville, IL CSA | 307,260  | Champaign-Urbana, IL MSA | 235,608  | Champaign County, Illinois | 205,644
Piatt County, Illinois | 16,714
Ford County, Illinois | 13,250
Danville, IL μSA | 71,652  | Vermilion County, Illinois | 71,652
Springfield-Jacksonville-Lincoln, IL CSA | 303,113  | Springfield, IL MSA | 205,445  | Sangamon County, Illinois | 193,491
Menard County, Illinois | 11,954
Jacksonville, IL μSA | 36,850  | Morgan County, Illinois | 32,140
Scott County, Illinois | 4,710
Taylorville, IL μSA | 33,228  | Christian County, Illinois | 33,228
Lincoln, IL μSA | 27,590  | Logan County, Illinois | 27,590
Bloomington-Pontiac, IL CSA | 205,761  | Bloomington, IL MSA | 170,441  | McLean County, Illinois | 170,441
Pontiac, IL μSA | 35,320  | Livingston County, Illinois | 35,320
Davenport-Moline, IA-IL CSA | 467,817
205,171 (IL) | Davenport-Moline-Rock Island, IA-IL MSA | 379,441
205,171 (IL) | 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
Carbondale-Marion-Herrin, IL CSA | 118,847  | Marion-Herrin, IL μSA | 66,706  | Williamson County, Illinois | 66,706
Carbondale, IL μSA | 52,141  | Jackson County, Illinois | 52,141
none | Decatur, IL MSA | 100,591  | Macon County, Illinois | 100,591
Dixon-Sterling, IL CSA | 88,152  | Sterling, IL μSA | 54,498  | Whiteside County, Illinois | 54,498
Dixon, IL μSA | 33,654  | Lee County, Illinois | 33,654
Quincy-Hannibal, IL-MO CSA | 113,084
64,441 (IL) | Quincy, IL-MO μSA | 74,259
64,441 (IL) | Adams County, Illinois | 64,441
Lewis County, Missouri | 9,818
Hannibal, MO μSA | 38,825 | Marion County, Missouri | 28,336
Ralls County, Missouri | 10,489
none | Galesburg, IL μSA | 48,411  | Knox County, Illinois | 48,411
Charleston–Mattoon, IL μSA | 46,060  | Coles County, Illinois | 46,060
Effingham, IL μSA | 44,592  | Effingham County, Illinois | 34,331
Cumberland County, Illinois | 10,261
Mount Vernon, IL μSA | 36,320  | Jefferson County, Illinois | 36,320
Macomb, IL μSA | 26,839  | McDonough County, Illinois | 26,839
Paducah-Mayfield, KY-IL CSA | 138,728
13,661 (IL) | Paducah, KY-IL MSA | 102,267
13,661 (IL) | McCracken County, Kentucky | 67,428
Massac County, Illinois | 13,661
Livingston County, Kentucky | 8,892
Ballard County, Kentucky | 7,582
Carlisle County, Kentucky | 4,704
Mayfield, KY μSA | 36,461 | Graves County, Kentucky | 36,461
Burlington-Fort Madison, IA-IL CSA | 76,906
6,088 (IL) | Burlington, IA-IL μSA | 44,341
6,088 (IL) | Des Moines County, Iowa | 38,253
Henderson County, Illinois | 6,088
Fort Madison, IA μSA | 32,565 | Lee County, Iowa | 32,565
Cape Girardeau-Sikeston, MO-IL CSA | 147,934
4,695 (IL) | Cape Girardeau, MO-IL MSA | 98,223
4,695 (IL) | Cape Girardeau County, Missouri | 82,984
Bollinger County, Missouri | 10,544
Alexander County, Illinois | 4,695
Sikeston, MO μSA | 49,711 | Scott County, Missouri | 37,889
Mississippi County, Missouri | 11,822
none | Franklin County, Illinois | 37,138
Randolph County, Illinois | 29,815
Montgomery County, Illinois | 27,663
Iroquois County, Illinois | 26,136
Saline County, Illinois | 22,873
Jo Daviess County, Illinois | 21,756
Fayette County, Illinois | 21,164
Shelby County, Illinois | 20,568
Perry County, Illinois | 20,503
Douglas County, Illinois | 19,629
Crawford County, Illinois | 18,300
Hancock County, Illinois | 17,186
Union County, Illinois | 16,667
Edgar County, Illinois | 16,334
Warren County, Illinois | 16,185
Wayne County, Illinois | 15,761
Carroll County, Illinois | 15,526
Richland County, Illinois | 15,488
DeWitt County, Illinois | 15,365
Clark County, Illinois | 15,088
Lawrence County, Illinois | 14,813
Moultrie County, Illinois | 14,342
Pike County, Illinois | 14,342
Washington County, Illinois | 13,536
White County, Illinois | 13,401
Johnson County, Illinois | 13,326
Clay County, Illinois | 12,999
Cass County, Illinois | 12,596
Mason County, Illinois | 12,523
Greene County, Illinois | 11,543
Wabash County, Illinois | 10,942
Jasper County, Illinois | 9,144
Hamilton County, Illinois | 7,911
Schuyler County, Illinois | 6,733
Brown County, Illinois | 6,294
Edwards County, Illinois | 5,968
Pulaski County, Illinois | 4,911
Gallatin County, Illinois | 4,670
Pope County, Illinois | 3,707
Hardin County, Illinois | 3,569
State of Illinois | 12,549,689

## 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 32 core-based statistical areas of the State of Illinois[c]

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

|
|

2023 estimate[3] | Change  | 2020 Census[4] | Change  | 2010 Census[5]
1 | Chicago-Naperville-Elgin, IL-IN MSA (IL) | 8,539,397 | −2.19% | 8,730,688 | +1.68% | 8,586,609
2 | St. Louis, MO-IL MSA (IL) | 671,388 | −1.67% | 682,761 | −2.97% | 703,664
3 | Peoria, IL MSA | 362,240 | −1.77% | 368,782 | −2.74% | 379,186
4 | Rockford, IL MSA | 334,124 | −1.38% | 338,798 | −3.04% | 349,431
5 | Champaign-Urbana, IL MSA | 235,608 | −0.20% | 236,072 | +1.80% | 231,891
6 | Springfield, IL MSA | 205,445 | −1.53% | 208,640 | −0.73% | 210,170
7 | Davenport-Moline-Rock Island, IA-IL MSA (IL) | 205,171 | −2.14% | 209,655 | −1.77% | 213,442
8 | Bloomington, IL MSA | 170,441 | −0.30% | 170,954 | +0.81% | 169,572
9 | Ottawa, IL μSA | 146,599 | −1.31% | 148,539 | −4.11% | 154,908
10 | Kankakee, IL MSA | 105,940 | −1.45% | 107,502 | −5.24% | 113,449
11 | Decatur, IL MSA | 100,591 | −3.28% | 103,998 | −6.11% | 110,768
12 | Danville, IL μSA | 71,652 | −3.42% | 74,188 | −9.11% | 81,625
13 | Marion-Herrin, IL μSA | 66,706 | −0.67% | 67,153 | +1.20% | 66,357
14 | Quincy, IL-MO μSA (IL) | 64,441 | −1.97% | 65,737 | −2.04% | 67,103
15 | Sterling, IL μSA | 54,498 | −2.14% | 55,691 | −4.80% | 58,498
16 | Carbondale, IL μSA | 52,141 | −1.57% | 52,974 | −12.03% | 60,218
17 | Rochelle, IL μSA | 51,265 | −1.01% | 51,788 | −3.19% | 53,497
18 | Galesburg, IL μSA | 48,411 | −3.11% | 49,967 | −5.58% | 52,919
19 | Charleston-Mattoon, IL μSA | 46,060 | −1.71% | 46,863 | −13.01% | 53,873
20 | Effingham, IL μSA | 44,592 | −1.17% | 45,118 | −0.38% | 45,290
21 | Freeport, IL μSA | 43,105 | −3.42% | 44,630 | −6.46% | 47,711
22 | Jacksonville, IL μSA | 36,850 | −2.68% | 37,864 | −7.43% | 40,902
23 | Centralia, IL μSA | 36,673 | −2.80% | 37,729 | −4.33% | 39,437
24 | Mount Vernon, IL μSA | 36,320 | −2.14% | 37,113 | −4.41% | 38,827
25 | Pontiac, IL μSA | 35,320 | −1.38% | 35,815 | −8.05% | 38,950
26 | Taylorville, IL μSA | 33,228 | −2.36% | 34,032 | −2.21% | 34,800
27 | Canton, IL μSA | 32,541 | −3.18% | 33,609 | −9.33% | 37,069
28 | Lincoln, IL μSA | 27,590 | −1.42% | 27,987 | −7.65% | 30,305
29 | Macomb, IL μSA | 26,839 | −1.46% | 27,238 | −16.48% | 32,612
30 | Paducah, KY-IL μSA (IL) | 13,661 | −3.59% | 14,169 | −8.17% | 15,429
31 | Burlington, IA-IL μSA (IL) | 6,088 | −4.68% | 6,387 | −12.88% | 7,331
32 | Cape Girardeau, MO-IL μSA (IL) | 4,695 | −10.40% | 5,240 | −36.39% | 8,238
| Burlington, IA-IL μSA | 44,341 | −2.11% | 45,297 | −4.95% | 47,656
| Cape Girardeau, MO-IL μSA | 98,223 | +0.72% | 97,517 | +1.29% | 96,275
| Chicago-Naperville-Elgin, IL-IN MSA | 9,262,825 | −1.97% | 9,449,351 | +1.66% | 9,294,679
| Davenport-Moline-Rock Island, IA-IL MSA | 379,441 | −1.27% | 384,324 | +1.49% | 378,666
| Paducah, KY-IL μSA | 102,267 | −1.18% | 103,486 | −0.37% | 103,866
| Quincy, IL-MO μSA | 74,259 | −1.99% | 75,769 | −2.00% | 77,314
| St. Louis, MO-IL MSA | 2,796,999 | −0.82% | 2,820,253 | +1.17% | 2,787,701

## 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 14 combined statistical areas of the State of Illinois[d]

2023 rank  | Combined statistical area[1] | Population

|
|

2023 estimate[3] | Change  | 2020 Census[4] | Change  | 2010 Census[5]
1 | Chicago-Naperville, IL-IN-WI CSA (IL) | 8,791,936 | −2.17% | 8,986,729 | +1.49% | 8,854,966
2 | St. Louis-St. Charles-Farmington, MO-IL CSA (IL) | 708,061 | −1.73% | 720,490 | −3.04% | 743,101
3 | Rockford-Freeport-Rochelle, IL CSA | 428,494 | −1.54% | 435,216 | −3.42% | 450,639
4 | Peoria-Canton, IL CSA | 394,781 | −1.89% | 402,391 | −3.33% | 416,255
5 | Champaign-Urbana-Danville, IL CSA | 307,260 | −0.97% | 310,260 | −1.04% | 313,516
6 | Springfield-Jacksonville-Lincoln, IL CSA | 303,113 | −1.75% | 308,523 | −2.42% | 316,177
7 | Davenport-Moline, IA-IL CSA (IL) | 205,171 | −2.14% | 209,655 | −1.77% | 213,442
8 | Bloomington-Pontiac, IL CSA | 205,761 | −0.49% | 206,769 | −0.84% | 208,522
9 | Carbondale-Marion-Herrin, IL CSA | 118,847 | −1.07% | 120,127 | −5.09% | 126,575
10 | Dixon-Sterling, IL CSA | 88,152 | −1.87% | 89,836 | −4.96% | 94,529
11 | Quincy-Hannibal, IL-MO CSA (IL) | 64,441 | −1.97% | 65,737 | −2.04% | 67,103
12 | Paducah-Mayfield, KY-IL CSA (IL) | 13,661 | −3.59% | 14,169 | −8.17% | 15,429
13 | Burlington-Fort Madison, IA-IL CSA (IL) | 6,088 | −4.68% | 6,387 | −12.88% | 7,331
14 | Cape Girardeau-Sikeston, MO-IL CSA (IL) | 4,695 | −10.40% | 5,240 | −36.39% | 8,238
| Burlington-Fort Madison, IA-IL CSA | 76,906 | −2.47% | 78,852 | −5.59% | 83,518
| Cape Girardeau-Sikeston, MO-IL CSA | 147,934 | −0.15% | 148,153 | −1.12% | 149,824
| Chicago-Naperville, IL-IN-WI CSA | 9,794,558 | −1.93% | 9,986,960 | +1.48% | 9,840,929
| Davenport-Moline, IA-IL CSA | 467,817 | −1.31% | 474,019 | +0.74% | 470,527
| Paducah-Mayfield, KY-IL CSA | 138,728 | −1.00% | 140,135 | −0.60% | 140,987
| Quincy-Hannibal, IL-MO CSA | 113,084 | −1.37% | 114,649 | −1.39% | 116,262
| St. Louis-St. Charles-Farmington, MO-IL CSA | 2,900,730 | −0.83% | 2,924,904 | +1.12% | 2,892,497

## See also

[edit]

* Geography portal
* United States portal
* Illinois portal

* Geography of Illinois
* Demographics of Illinois

## 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. The state's abbreviation is also shown next to the in-state total.
2. ^ Per the most recent OMB bulletin, the portion of Sullivan, Missouri within Crawford County, Missouri is included in St. Louis' statistical areas. Population data for this portion of Sullivan is not readily available and is not included in this table.
3. ^ 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.
4. ^ 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 f g 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 f "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.

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