List of All Metropolitan/Micropolitan Statistical Areas in Illinois |
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Map Key | Name | Population (2022) | MSA Type |
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| Bloomington, IL | 187,751 | Metropolitan Statistical Area |
| Burlington, IA-IL | 47,543 | Micropolitan Statistical Area |
| Cape Girardeau, MO-IL | 96,226 | Metropolitan Statistical Area |
| Carbondale-Marion, IL | 59,992 | Metropolitan Statistical Area |
| Centralia, IL | 39,319 | Micropolitan Statistical Area |
| Champaign-Urbana, IL | 231,655 | Metropolitan Statistical Area |
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| Charleston-Mattoon, IL | 64,727 | Micropolitan Statistical Area |
| Chicago-Naperville-Elgin, IL-IN-WI | 9,460,763 | Metropolitan Statistical Area |
| Danville, IL | 81,463 | Metropolitan Statistical Area |
| Davenport-Moline-Rock Island, IA-IL | 379,735 | Metropolitan Statistical Area |
| Decatur, IL | 110,558 | Metropolitan Statistical Area |
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| Dixon, IL | 35,778 | Micropolitan Statistical Area |
| Effingham, IL | 34,258 | Micropolitan Statistical Area |
| Fort Madison-Keokuk, IA-IL-MO | 42,823 | Micropolitan Statistical Area |
| Freeport, IL | 47,532 | Micropolitan Statistical Area |
| Galesburg, IL | 70,421 | Micropolitan Statistical Area |
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| Jacksonville, IL | 40,866 | Micropolitan Statistical Area |
| Kankakee, IL | 113,170 | Metropolitan Statistical Area |
| Lincoln, IL | 30,278 | Micropolitan Statistical Area |
| Macomb, IL | 32,568 | Micropolitan Statistical Area |
| Mount Vernon, IL | 47,338 | Micropolitan Statistical Area |
| Ottawa, IL | 148,580 | Micropolitan Statistical Area |
| Paducah, KY-IL | 98,675 | Micropolitan Statistical Area |
| Peoria, IL | 378,886 | Metropolitan Statistical Area |
| Pontiac, IL | 38,903 | Micropolitan Statistical Area |
| Quincy, IL-MO | 77,301 | Micropolitan Statistical Area |
| Rochelle, IL | 53,378 | Micropolitan Statistical Area |
| Rockford, IL | 348,574 | Metropolitan Statistical Area |
| Springfield, IL | 210,202 | Metropolitan Statistical Area |
| St. Louis, MO-IL | 2,810,367 | Metropolitan Statistical Area |
| Sterling, IL | 58,400 | Micropolitan Statistical Area |
| Taylorville, IL | 34,805 | Micropolitan Statistical Area |