Designated area
1
| Designation
| Classification
|
---|
Date
2
| Type
| Date
2
| Type
|
---|
Chicago, IL-IN:
|
Cook County | | Unclassifiable/Attainment.
| | |
DuPage County | | Unclassifiable/Attainment.
| | |
Grundy County (part) | | Unclassifiable/Attainment.
| | |
Goose Lake and Aux Sable Townships | | Unclassifiable/Attainment.
| | |
Kane County | | Unclassifiable/Attainment.
| | |
Kendall County (part) | | Unclassifiable/Attainment.
| | |
Oswego Township | | Unclassifiable/Attainment.
| | |
Lake County | | Unclassifiable/Attainment.
| | |
McHenry County | | Unclassifiable/Attainment.
| | |
Will County | | Unclassifiable/Attainment.
| | |
Davenport-Moline-Rock Island, IL:
|
Rock Island County | | Unclassifiable/Attainment.
| | |
Henry County | | Unclassifiable/Attainment.
| | |
Mercer County | | Unclassifiable/Attainment.
| | |
St. Louis, MO-IL:
|
Madison County | | Unclassifiable/Attainment.
| | |
Monroe County | | Unclassifiable/Attainment.
| | |
Randolph County (part) | | Unclassifiable/Attainment.
| | |
Baldwin Village | | Unclassifiable/Attainment.
| | |
St. Clair County | | Unclassifiable/Attainment.
| | |
Rest of State:
|
Adams County | | Unclassifiable/Attainment.
| | |
Alexander County | | Unclassifiable/Attainment.
| | |
Bond County | | Unclassifiable/Attainment.
| | |
Boone County | | Unclassifiable/Attainment.
| | |
Brown County | | Unclassifiable/Attainment.
| | |
Bureau County | | Unclassifiable/Attainment.
| | |
Calhoun County | | Unclassifiable/Attainment.
| | |
Carroll County | | Unclassifiable/Attainment.
| | |
Cass County | | Unclassifiable/Attainment.
| | |
Champaign County | | Unclassifiable/Attainment.
| | |
Christian County | | Unclassifiable/Attainment.
| | |
Clark County | | Unclassifiable/Attainment.
| | |
Clay County | | Unclassifiable/Attainment.
| | |
Clinton County | | Unclassifiable/Attainment.
| | |
Coles County | | Unclassifiable/Attainment.
| | |
Crawford County | | Unclassifiable/Attainment.
| | |
Cumberland County | | Unclassifiable/Attainment.
| | |
DeKalb County | | Unclassifiable/Attainment.
| | |
De Witt County | | Unclassifiable/Attainment.
| | |
Douglas County | | Unclassifiable/Attainment.
| | |
Edgar County | | Unclassifiable/Attainment.
| | |
Edwards County | | Unclassifiable/Attainment.
| | |
Effingham County | | Unclassifiable/Attainment.
| | |
Fayette County | | Unclassifiable/Attainment.
| | |
Ford County | | Unclassifiable/Attainment.
| | |
Franklin County | | Unclassifiable/Attainment.
| | |
Fulton County | | Unclassifiable/Attainment.
| | |
Gallatin County | | Unclassifiable/Attainment.
| | |
Greene County | | Unclassifiable/Attainment.
| | |
Grundy County (remainder) | | Unclassifiable/Attainment.
| | |
Hamilton County | | Unclassifiable/Attainment.
| | |
Hancock County | | Unclassifiable/Attainment.
| | |
Hardin County | | Unclassifiable/Attainment.
| | |
Henderson County | | Unclassifiable/Attainment.
| | |
Iroquois County | | Unclassifiable/Attainment.
| | |
Jackson County | | Unclassifiable/Attainment.
| | |
Jasper County | | Unclassifiable/Attainment.
| | |
Jefferson County | | Unclassifiable/Attainment.
| | |
Jersey County | | Unclassifiable/Attainment.
| | |
Jo Daviess County | | Unclassifiable/Attainment.
| | |
Johnson County | | Unclassifiable/Attainment.
| | |
Kankakee County | | Unclassifiable/Attainment.
| | |
Kendall County (remainder) | | Unclassifiable/Attainment.
| | |
Knox County | | Unclassifiable/Attainment.
| | |
La Salle County | | Unclassifiable/Attainment.
| | |
Lawrence County | | Unclassifiable/Attainment.
| | |
Lee County | | Unclassifiable/Attainment.
| | |
Livingston County | | Unclassifiable/Attainment.
| | |
Logan County | | Unclassifiable/Attainment.
| | |
McDonough County | | Unclassifiable/Attainment.
| | |
McLean County | | Unclassifiable/Attainment.
| | |
Macon County | | Unclassifiable/Attainment.
| | |
Macoupin County | | Unclassifiable/Attainment.
| | |
Marion County | | Unclassifiable/Attainment.
| | |
Marshall County | | Unclassifiable/Attainment.
| | |
Mason County | | Unclassifiable/Attainment.
| | |
Massac County | | Unclassifiable/Attainment.
| | |
Menard County | | Unclassifiable/Attainment.
| | |
Montgomery County | | Unclassifiable/Attainment.
| | |
Morgan County | | Unclassifiable/Attainment.
| | |
Moultrie County | | Unclassifiable/Attainment.
| | |
Ogle County | | Unclassifiable/Attainment.
| | |
Peoria County | | Unclassifiable/Attainment.
| | |
Perry County | | Unclassifiable/Attainment.
| | |
Piatt County | | Unclassifiable/Attainment.
| | |
Pike County | | Unclassifiable/Attainment.
| | |
Pope County | | Unclassifiable/Attainment.
| | |
Pulaski County | | Unclassifiable/Attainment.
| | |
Putnam County | | Unclassifiable/Attainment.
| | |
Randolph County (remainder) | | Unclassifiable/Attainment.
| | |
Richland County | | Unclassifiable/Attainment.
| | |
Saline County | | Unclassifiable/Attainment.
| | |
Sangamon County | | Unclassifiable/Attainment.
| | |
Schuyler County | | Unclassifiable/Attainment.
| | |
Scott County | | Unclassifiable/Attainment.
| | |
Shelby County | | Unclassifiable/Attainment.
| | |
Stark County | | Unclassifiable/Attainment.
| | |
Stephenson County | | Unclassifiable/Attainment.
| | |
Tazewell County | | Unclassifiable/Attainment.
| | |
Union County | | Unclassifiable/Attainment.
| | |
Vermilion County | | Unclassifiable/Attainment.
| | |
Wabash County | | Unclassifiable/Attainment.
| | |
Warren County | | Unclassifiable/Attainment.
| | |
Washington County | | Unclassifiable/Attainment.
| | |
Wayne County | | Unclassifiable/Attainment.
| | |
White County | | Unclassifiable/Attainment.
| | |
Whiteside County | | Unclassifiable/Attainment.
| | |
Williamson County | | Unclassifiable/Attainment.
| | |
Winnebago County | | Unclassifiable/Attainment.
| | |
Woodford County | | Unclassifiable/Attainment.
| | |