Illinois statistical areas explained

The U.S. 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.__TOC__

Table

The 47 United States statistical areas and 102 counties of the State of Illinois

Combined statistical area2023 population (est.)[2] Core-based statistical area2023 population (est.)County2023 population (est.)Metropolitan division2023 population (est.)
Chicago-Naperville, IL-IN-WI CSA9,794,558
8,791,936 		Chicago-Naperville-Elgin, IL-IN MSA9,262,825
8,539,397 (IL)		Cook County, Illinois5,087,072Chicago-Naperville-Schaumburg, IL MD7,075,391
DuPage County, Illinois921,213
Will County, Illinois700,728
McHenry County, Illinois312,800
Grundy County, Illinois53,578
Kane County, Illinois514,982Elgin, IL MD755,246
Kendall County, Illinois139,976
DeKalb County, Illinois100,288
Lake County, Indiana500,598Lake County-Porter County-Jasper County, IN MD723,428
Porter County, Indiana175,335
Jasper County, Indiana33,535
Newton County, Indiana13,960
Lake County, Illinois708,760Lake County, IL MD708,760
Kenosha, WI MSA167,488Kenosha County, Wisconsin167,488none
Ottawa, IL μSA146,599LaSalle County, Illinois108,309
Bureau County, Illinois32,729
Putnam County, Illinois5,561
Michigan City-La Porte, IN MSA111,706LaPorte County, Indiana111,706
Kankakee-Bradley, IL MSA105,940Kankakee County, Illinois105,940
St. Louis-St. Charles-Farmington, MO-IL CSA2,900,730
708,061 (IL)		St. Louis, MO-IL MSA2,796,999
671,388 (IL)		St. Louis County, Missouri987,059
St. Charles County, Missouri416,659
City of St. Louis, Missouri281,754
Madison County, Illinois262,752
St. Clair County, Illinois251,018
Jefferson County, Missouri231,230
Franklin County, Missouri106,404
Lincoln County, Missouri64,699
Macoupin County, Illinois44,018
Warren County, Missouri37,806
Clinton County, Illinois36,785
Monroe County, Illinois34,957
Jersey County, Illinois21,091
Bond County, Illinois16,450
Calhoun County, Illinois4,317
Farmington, MO μSA67,058Saint Francois County, Missouri67,058
Centralia, IL μSA36,673Marion County, Illinois36,673
Rockford-Freeport-Rochelle, IL CSA428,494Rockford, IL MSA334,124Winnebago County, Illinois280,922
Boone County, Illinois53,202
Rochelle, IL μSA51,265Ogle County, Illinois51,265
Freeport, IL μSA43,105Stephenson County, Illinois43,105
Peoria-Canton, IL CSA394,781Peoria, IL MSA362,240Peoria County, Illinois177,513
Tazewell County, Illinois129,541
Woodford County, Illinois38,285
Marshall County, Illinois11,683
Stark County, Illinois5,218
Canton, IL μSA32,541Fulton County, Illinois32,541
Champaign-Urbana-Danville, IL CSA307,260Champaign-Urbana, IL MSA235,608Champaign County, Illinois205,644
Piatt County, Illinois16,714
Ford County, Illinois13,250
Danville, IL MSA71,652Vermilion County, Illinois71,652
Springfield-Jacksonville-Lincoln, IL CSA303,113Springfield, IL MSA205,445Sangamon County, Illinois193,491
Menard County, Illinois11,954
Jacksonville, IL μSA36,850Morgan County, Illinois32,140
Scott County, Illinois4,710
Taylorville, IL μSA33,228Christian County, Illinois33,228
Lincoln, IL μSA27,590Logan County, Illinois27,590
Bloomington-Pontiac, IL CSA205,761Bloomington, IL MSA170,441McLean County, Illinois170,441
Pontiac, IL μSA35,320Livingston County, Illinois35,320
Davenport-Moline, IA-IL CSA467,817
205,171 (IL)		Davenport-Moline-Rock Island, IA-IL MSA379,441
205,171 (IL)		Scott County, Iowa174,270
Rock Island County, Illinois141,236
Henry County, Illinois48,448
Mercer County, Illinois15,487
Clinton, IA μSA46,158Clinton County, Iowa46,158
Muscatine, IA μSA42,218Muscatine County, Iowa42,218
Carbondale-Marion-Herrin, IL CSA118,847Marion-Herrin, IL μSA66,706Williamson County, Illinois66,706
Carbondale, IL μSA52,141Jackson County, Illinois52,141
noneDecatur, IL MSA100,591Macon County, Illinois100,591
Dixon-Sterling, IL CSA88,152Sterling, IL μSA54,498Whiteside County, Illinois54,498
Dixon, IL μSA33,654Lee County, Illinois33,654
Quincy-Hannibal, IL-MO CSA113,084
64,441 (IL)		Quincy, IL-MO μSA74,259
64,441 (IL)		Adams County, Illinois64,441
Lewis County, Missouri9,818
Hannibal, MO μSA38,825Marion County, Missouri28,336
Ralls County, Missouri10,489
noneGalesburg, IL μSA48,411Knox County, Illinois48,411
Charleston–Mattoon, IL μSA46,060Coles County, Illinois46,060
Effingham, IL μSA44,592Effingham County, Illinois34,331
Cumberland County, Illinois10,261
Mount Vernon, IL μSA36,320Jefferson County, Illinois36,320
Macomb, IL μSA26,839McDonough County, Illinois26,839
Paducah-Mayfield, KY-IL CSA138,728
13,661 (IL)		Paducah, KY-IL MSA102,267
13,661 (IL)		McCracken County, Kentucky67,428
Massac County, Illinois13,661
Livingston County, Kentucky8,892
Ballard County, Kentucky7,582
Carlisle County, Kentucky4,704
Mayfield, KY μSA36,461Graves County, Kentucky36,461
Burlington-Fort Madison, IA-IL CSA76,906
6,088 (IL)		Burlington, IA-IL μSA44,341
6,088 (IL)		Des Moines County, Iowa38,253
Henderson County, Illinois6,088
Fort Madison, IA μSA32,565Lee County, Iowa32,565
Cape Girardeau-Sikeston, MO-IL CSA147,934
4,695 (IL)		Cape Girardeau, MO-IL MSA98,223
4,695 (IL)		Cape Girardeau County, Missouri82,984
Bollinger County, Missouri10,544
Alexander County, Illinois4,695
Sikeston, MO μSA49,711Scott County, Missouri37,889
Mississippi County, Missouri11,822
noneFranklin County, Illinois37,138
Randolph County, Illinois29,815
Montgomery County, Illinois27,663
Iroquois County, Illinois26,136
Saline County, Illinois22,873
Jo Daviess County, Illinois21,756
Fayette County, Illinois21,164
Shelby County, Illinois20,568
Perry County, Illinois20,503
Douglas County, Illinois19,629
Crawford County, Illinois18,300
Hancock County, Illinois17,186
Union County, Illinois16,667
Edgar County, Illinois16,334
Warren County, Illinois16,185
Wayne County, Illinois15,761
Carroll County, Illinois15,526
Richland County, Illinois15,488
DeWitt County, Illinois15,365
Clark County, Illinois15,088
Lawrence County, Illinois14,813
Moultrie County, Illinois14,342
Pike County, Illinois14,342
Washington County, Illinois13,536
White County, Illinois13,401
Johnson County, Illinois13,326
Clay County, Illinois12,999
Cass County, Illinois12,596
Mason County, Illinois12,523
Greene County, Illinois11,543
Wabash County, Illinois10,942
Jasper County, Illinois9,144
Hamilton County, Illinois7,911
Schuyler County, Illinois6,733
Brown County, Illinois6,294
Edwards County, Illinois5,968
Pulaski County, Illinois4,911
Gallatin County, Illinois4,670
Pope County, Illinois3,707
Hardin County, Illinois3,569
State of Illinois12,549,689

Primary statistical areas

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. Of the 47 statistical areas of Illinois, 20 are PSAs comprising 14 combined statistical areas, one metropolitan statistical area and five micropolitan statistical areas.

The 20 primary statistical areas of the State of Illinois

scope=col rowspan=22020 rankscope=col rowspan=2Primary statistical areaPopulation
scope=col2023 estimatescope=colChangescope=col2020 Census[3] scope=colChangescope=col2010 Census[4]
scope=rowChicago-Naperville, IL-IN-WI CSA (IL)
scope=rowSt. Louis-St. Charles-Farmington, MO-IL CSA (IL)
scope=rowRockford-Freeport-Rochelle, IL CSA
scope=rowPeoria-Canton, IL CSA
scope=rowChampaign-Urbana-Danville, IL CSA
scope=rowSpringfield-Jacksonville-Lincoln, IL CSA
scope=rowDavenport-Moline, IA-IL CSA (IL)
scope=rowBloomington-Pontiac, IL CSA
scope=rowCarbondale-Marion-Herrin, IL CSA
scope=rowDecatur, IL MSA
scope=rowDixon-Sterling, IL CSA
scope=rowQuincy-Hannibal, IL-MO CSA (IL)
scope=rowGalesburg, IL μSA
scope=rowCharleston-Mattoon, IL μSA
scope=rowEffingham, IL μSA
scope=rowMount Vernon, IL μSA
scope=rowMacomb, IL μSA
scope=rowPaducah-Mayfield, KY-IL CSA (IL)
scope=rowBurlington-Fort Madison, IA-IL CSA (IL)
scope=rowCape Girardeau-Sikeston, MO-IL CSA (IL)
Chicago-Naperville, IL-IN-WI CSA
St. Louis-St. Charles-Farmington, MO-IL CSA
Davenport-Moline, IA-IL CSA
Quincy-Hannibal, IL-MO CSA
Paducah-Mayfield, KY-IL CSA
Burlington-Fort Madison, IA-IL CSA
Cape Girardeau-Sikeston, MO-IL CSA

See also

External links

40.0417°N -89.1965°W

Notes and References

  1. Web site: 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 . October 23, 2023 . Office of Management and Budget.
  2. Web site: March 2023 . County Population Totals and Components of Change: 2020-2023 . May 21, 2024 . United States Census Bureau, Population Division.
  3. Web site: PROFILE OF GENERAL POPULATION AND HOUSING CHARACTERISTICS.. U.S. Census Bureau. 2020. May 21, 2024.
  4. Web site: Annual Estimates of the Resident Population for Counties: April 1, 2010 to July 1, 2019. U.S. Census Bureau. 2019. May 21, 2024.

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