Illinois statistical areas

The U.S. State of Illinois currently has 43 statistical areas that have been delineated by the Office of Management and Budget (OMB). On March 6, 2020, the OMB delineated 11 combined statistical areas, 13 metropolitan statistical areas, and 19 micropolitan statistical areas in Illinois.^[1]

An enlargeable map of the 32 core-based statistical areas in Illinois.^[1]

Statistical areas

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 "a statistical geographic entity consisting of the county or counties (or county-equivalents) associated with at least one core^[a] of at least 10,000 population, 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 into metropolitan statistical areas (MSAs) that have "a population of at least 50,000" and micropolitan statistical areas (μSAs) that have "a population of at least 10,000, but less than 50,000."^[2]

The OMB defines a combined statistical area (CSA) as "a geographic entity consisting of two or more adjacent core-based statistical areas with employment interchange measures^[b] of 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 table below describes the 43 United States statistical areas and 102 counties of the State of Illinois with the following information:^[3]

1. The combined statistical area (CSA) as designated by the OMB.^[1]
2. The CSA population according to 2019 US Census Bureau population estimates.^[4]
3. The core based statistical area (CBSA)^[2] as designated by the OMB.^[1]
4. The CBSA population according to 2019 US Census Bureau population estimates ^[4]
5. The county name
6. The county population according to 2019 US Census Bureau population estimates ^[4]
7. The Metropolitan Division name, if applicable^[1]
8. The Metropolitan Division population according to 2019 US Census Bureau population estimates ^[4]

The 43 United States statistical areas and 102 counties of the State of Illinois

Combined Statistical Area	2019 Population	Core Based Statistical Area	2019 Population	County	2019 Population	Metropolitan Division	2019 Population
Chicago-Naperville, IL-IN-WI CSA	9,825,325 8,842,474	Chicago-Naperville-Elgin, IL-IN-WI MSA	9,458,539 8,585,550	Cook County, Illinois	5,150,233	Chicago-Naperville-Evanston, IL MD	7,122,725
				DuPage County, Illinois	922,921
				Will County, Illinois	690,743
				McHenry County, Illinois	307,774
				Grundy County, Illinois	51,054
				Lake County, Illinois	696,535	Lake County-Kenosha County, IL-WI MD	866,096 696,535
				Kenosha County, Wisconsin	169,561
				Kane County, Illinois	532,403	Elgin, IL MD	766,290
				Kendall County, Illinois	128,990
				DeKalb County, Illinois	104,897
				Lake County, Indiana	485,493	Gary, IN MD	703,428
				Porter County, Indiana	170,389
				Jasper County, Indiana	33,562
				Newton County, Indiana	13,984
		Ottawa, IL μSA	147,036	LaSalle County, Illinois	108,669	none
				Bureau County, Illinois	32,628
				Putnam County, Illinois	5,739
		Michigan City-La Porte, IN MSA	109,888	LaPorte County, Indiana	109,888
		Kankakee-Bradley, IL MSA	109,862	Kankakee County, Illinois	109,862
St. Louis-St. Charles-Farmington, MO-IL CSA	2,907,648 719,920	St. Louis, MO-IL MSA	2,803,228 682,715	St. Louis County, Missouri	994,205
				St. Charles County, Missouri	402,022
				City of St. Louis, Missouri	300,576
				Madison County, Illinois	262,966
				St. Clair County, Illinois	259,686
				Jefferson County, Missouri	225,081
				Franklin County, Missouri	103,967
				Lincoln County, Missouri	59,013
				Macoupin County, Illinois	44,926
				Clinton County, Illinois	37,562
				Warren County, Missouri	35,649
				Monroe County, Illinois	34,637
				Jersey County, Illinois	21,773
				Bond County, Illinois	16,426
				Calhoun County, Illinois	4,739
		Farmington, MO μSA	67,215	Saint Francois County, Missouri	67,215
		Centralia, IL μSA	37,205	Marion County, Illinois	37,205
Rockford-Freeport-Rochelle, IL CSA	431,257	Rockford, IL MSA	336,116	Winnebago County, Illinois	282,572
				Boone County, Illinois	53,544
		Rochelle, IL μSA	50,643	Ogle County, Illinois	50,643
		Freeport, IL μSA	44,498	Stephenson County, Illinois	44,498
none		Peoria, IL MSA	400,561	Peoria County, Illinois	179,179
				Tazewell County, Illinois	131,803
				Woodford County, Illinois	38,459
				Fulton County, Illinois	34,340
				Marshall County, Illinois	11,438
				Stark County, Illinois	5,342
Springfield-Jacksonville-Lincoln, IL CSA	306,399	Springfield, IL MSA	206,868	Sangamon County, Illinois	194,672
				Menard County, Illinois	12,196
		Jacksonville, IL μSA	38,609	Morgan County, Illinois	33,658
				Scott County, Illinois	4,951
		Taylorville, IL μSA	32,304	Christian County, Illinois	32,304
		Lincoln, IL μSA	28,618	Logan County, Illinois	28,618
none		Champaign-Urbana, IL MSA	226,033	Champaign County, Illinois	209,689
				Piatt County, Illinois	16,344
Bloomington-Pontiac, IL CSA	207,165	Bloomington, IL MSA	171,517	McLean County, Illinois	171,517
		Pontiac, IL μSA	35,648	Livingston County, Illinois	35,648
Davenport-Moline, IA-IL CSA	468,265 206,229	Davenport-Moline-Rock Island, IA-IL MSA	379,172 206,229	Scott County, Iowa	172,943
				Rock Island County, Illinois	141,879
				Henry County, Illinois	48,913
				Mercer County, Illinois	15,437
		Clinton, IA μSA	46,429	Clinton County, Iowa	46,429
		Muscatine, IA μSA	42,664	Muscatine County, Iowa	42,664
none		Carbondale-Marion, IL MSA	135,764	Williamson County, Illinois	67,597
				Jackson County, Illinois	56,750
				Johnson County, Illinois	12,417
		Decatur, IL MSA	104,009	Macon County, Illinois	104,009
Dixon-Sterling, IL CSA	89,849	Sterling, IL μSA	55,175	Whiteside County, Illinois	55,175
		Dixon, IL μSA	34,096	Lee County, Illinois	34,096
none		Danville, IL MSA	75,758	Vermilion County, Illinois	75,758
Quincy-Hannibal, IL-MO CSA	114,050 65,435	Quincy, IL-MO μSA	75,211 65,435	Adams County, Illinois	65,435
				Lewis County, Missouri	9,776
		Hannibal, MO μSA	38,839	Marion County, Missouri	28,530
				Ralls County, Missouri	10,309
none		Charleston–Mattoon, IL μSA	61,387	Coles County, Illinois	50,621
				Cumberland County, Illinois	10,766
		Galesburg, IL μSA	49,699	Knox County, Illinois	49,699
		Mount Vernon, IL μSA	37,684	Jefferson County, Illinois	37,684
		Effingham, IL μSA	34,008	Effingham County, Illinois	34,008
		Macomb, IL μSA	29,682	McDonough County, Illinois	29,682
Burlington-Fort Madison-Keokuk, IA-IL-MO CSA	103,775 24,354	Fort Madison-Keokuk, IA-IL-MO μSA	58,162 17,708	Lee County, Iowa	33,657
				Hancock County, Illinois	17,708
				Clark County, Missouri	6,797
		Burlington, IA-IL μSA	45,613 6,646	Des Moines County, Iowa	38,967
				Henderson County, Illinois	6,646
Paducah-Mayfield, KY-IL CSA	133,538 13,772	Paducah, KY-IL μSA	96,272 13,772	McCracken County, Kentucky	65,418
				Massac County, Illinois	13,772
				Livingston County, Kentucky	9,194
				Ballard County, Kentucky	7,888
		Mayfield, KY μSA	37,266	Graves County, Kentucky	37,266
Cape Girardeau-Sikeston, MO-IL CSA	135,045 5,761	Cape Girardeau, MO-IL MSA	96,765 5,761	Cape Girardeau County, Missouri	78,871
				Bollinger County, Missouri	12,133
				Alexander County, Illinois	5,761
		Sikeston, MO μSA	38,280	Scott County, Missouri	38,280
none		none		Franklin County, Illinois	38,469
				Randolph County, Illinois	31,782
				Montgomery County, Illinois	28,414
				Iroquois County, Illinois	27,114
				Saline County, Illinois	23,491
				Shelby County, Illinois	21,634
				Fayette County, Illinois	21,336
				Jo Daviess County, Illinois	21,235
				Perry County, Illinois	20,916
				Douglas County, Illinois	19,465
				Crawford County, Illinois	18,667
				Edgar County, Illinois	17,161
				Warren County, Illinois	16,844
				Union County, Illinois	16,653
				Wayne County, Illinois	16,215
				Lawrence County, Illinois	15,678
				DeWitt County, Illinois	15,638
				Pike County, Illinois	15,561
				Richland County, Illinois	15,513
				Clark County, Illinois	15,441
				Moultrie County, Illinois	14,501
				Carroll County, Illinois	14,305
				Washington County, Illinois	13,887
				White County, Illinois	13,537
				Mason County, Illinois	13,359
				Clay County, Illinois	13,184
				Greene County, Illinois	12,969
				Ford County, Illinois	12,961
				Cass County, Illinois	12,147
				Wabash County, Illinois	11,520
				Jasper County, Illinois	9,610
				Hamilton County, Illinois	8,116
				Schuyler County, Illinois	6,768
				Brown County, Illinois	6,578
				Edwards County, Illinois	6,395
				Pulaski County, Illinois	5,335
				Gallatin County, Illinois	4,828
				Pope County, Illinois	4,177
				Hardin County, Illinois	3,821
State of Illinois					12,671,847

See also

•  Geography portal
•  United States portal
•  Illinois portal

• Geography of Illinois
  • Demographics of Illinois

Notes

1. The OMB defines a core as "a densely settled concentration of population, comprising an Urban Area (of 10,000 or more population) delineated by the Census Bureau, around which a core-based statistical area is delineated."^[2]
2. The OMB defines the employment interchange measure as "the sum of the percentage of workers living in the smaller entity who work in the larger entity plus the percentage of employment in the smaller entity that is accounted for by workers who reside in the larger entity."^[2]

References

1. Revised Delineations of Metropolitan Statistical Areas, Micropolitan Statistical Areas, and Combined Statistical Areas, and Guidance on Uses of the Delineations of These Areas (March 6, 2020). "0MB BULLETIN NO. 20-01" (PDF). Office of Management and Budget. Retrieved December 13, 2021.{{cite web}}: CS1 maint: multiple names: authors list (link)
2. "2020 Standards for Delineating Core Based Statistical Areas". Office of Management and Budget. July 16, 2021. Retrieved December 13, 2021.
3. An out-of-state area and its population are displayed in green. An area that extends into more than one state is displayed in teal. A teal population number over a black population number show the total population versus the in-state population.
4. "Annual Estimates of the Resident Population for Counties in the United States: April 1, 2010 to July 1, 2019". United States Census Bureau, Population Division. April 2020. Retrieved April 9, 2020.

External links

• Office of Management and Budget
• United States Census Bureau

40°02′30″N 89°11′47″W / 40.0417°N 89.1965°W / 40.0417; -89.1965 (State of Illinois)