| Metropolitan Area | State | ROI Region | Pop2004 |
| Bloomington - Normal | IL | Great Lakes | 158,006 |
| Champaign - Urbana | IL | Great Lakes | 215,122 |
| Danville | IL | Great Lakes | 82,786 |
| Decatur | IL | Great Lakes | 110,980 |
| Kankakee - Bradley | IL | Great Lakes | 107,188 |
| Peoria | IL | Great Lakes | 367,860 |
| Rockford | IL | Great Lakes | 335,278 |
| Springfield | IL | Great Lakes | 204,745 |
| Davenport - Moline - Rock Island | IL IA | Great Lakes | 375,437 |
| Chicago - Naperville - Joliet | IL IN WI | Great Lakes | 9,391,515 |
| Anderson | IN | Great Lakes | 130,602 |
| Bloomington | IN | Great Lakes | 177,587 |
| Columbus | IN | Great Lakes | 72,987 |
| Elkhart-Goshen | IN | Great Lakes | 191,768 |
| Fort Wayne | IN | Great Lakes | 402,086 |
| Indianapolis | IN | Great Lakes | 1,621,613 |
| Kokomo | IN | Great Lakes | 101,220 |
| Lafayette | IN | Great Lakes | 181,512 |
| Michigan City-La Porte | IN | Great Lakes | 109,755 |
| Muncie | IN | Great Lakes | 117,774 |
| Terre Haute | IN | Great Lakes | 168,767 |
| Evansville | IN KY | Great Lakes | 348,454 |
| South Bend - Mishawaka | IN MI | Great Lakes | 318,192 |
| Bowling Green | KY | Great Lakes | 109,089 |
| Elizabethtown | KY | Great Lakes | 109,551 |
| Lexington - Fayette | KY | Great Lakes | 424,661 |
| Owensboro | KY | Great Lakes | 111,028 |
| Louisville | KY IN | Great Lakes | 1,200,847 |
| Ann Arbor | MI | Great Lakes | 339,191 |
| Battle Creek | MI | Great Lakes | 139,067 |
| Bay City | MI | Great Lakes | 109,480 |
| Detroit - Warren - Livonia | MI | Great Lakes | 4,493,165 |
| Flint | MI | Great Lakes | 443,947 |
| Grand Rapids - Wyoming | MI | Great Lakes | 767,539 |
| Holland - Grand Haven | MI | Great Lakes | 252,351 |
| Jackson | MI | Great Lakes | 162,973 |
| Kalamazoo - Portage | MI | Great Lakes | 319,265 |
| Lansing - East Lansing | MI | Great Lakes | 455,929 |
| Monroe | MI | Great Lakes | 152,552 |
| Muskegon - Norton Shores | MI | Great Lakes | 174,401 |
| Niles - Benton Harbor | MI | Great Lakes | 163,125 |
| Saginaw-Saginaw Township North | MI | Great Lakes | 209,062 |
| Akron | OH | Great Lakes | 702,078 |
| Canton-Massillon | OH | Great Lakes | 410,805 |
| Cleveland - Elyria - Mentor | OH | Great Lakes | 2,042,471 |
| Columbus | OH | Great Lakes | 1,693,906 |
| Dayton | OH | Great Lakes | 845,646 |
| Lima | OH | Great Lakes | 106,873 |
| Mansfield | OH | Great Lakes | 128,096 |
| Sandusky | OH | Great Lakes | 78,992 |
| Springfield | OH | Great Lakes | 142,613 |
| Toledo | OH | Great Lakes | 658,236 |
| Cincinnati - Middletown | OH KY IN | Great Lakes | 2,058,221 |
| Huntington - Ashland | OH KY WV | Great Lakes | 287,038 |
| Youngstown - Warren - Boardman | OH PA | Great Lakes | 590,038 |
| Weirton - Steubenville | OH WV | Great Lakes | 127,712 |
| Appleton | WI | Great Lakes | 213,102 |
| Eau Claire | WI | Great Lakes | 153,150 |
| Fond du Lac | WI | Great Lakes | 98,663 |
| Green Bay | WI | Great Lakes | 295,473 |
| Janesville | WI | Great Lakes | 156,512 |
| Madison | WI | Great Lakes | 531,766 |
| Milwaukee - Waukesha - West Allis | WI | Great Lakes | 1,515,738 |
| Oshkosh - Neenah | WI | Great Lakes | 159,008 |
| Racine | WI | Great Lakes | 194,188 |
| Sheboygan | WI | Great Lakes | 113,958 |
| Wausau | WI | Great Lakes | 127,733 |
| La Cross | WI MN | Great Lakes | 128,644 |
| Ames | IA | Plains | 80,404 |
| Cedar Rapids | IA | Plains | 244,546 |
| Des Moines | IA | Plains | 511,878 |
| Dubuque | IA | Plains | 91,000 |
| Iowa City | IA | Plains | 137,397 |
| Waterloo - Cedar Falls | IA | Plains | 161,913 |
| Sioux City | IA NE SD | Plains | 143,192 |
| Lawrence | KS | Plains | 102,786 |
| Topeka | KS | Plains | 227,820 |
| Wichita | KS | Plains | 584,671 |
| Rochester | MN | Plains | 174,853 |
| St. Cloud | MN | Plains | 179,154 |
| Duluth | MN WI | Plains | 275,820 |
| Minneapolis-St. Paul-Bloomington | MN WI | Plains | 3,116,206 |
| Columbia | MO | Plains | 151,307 |
| Jefferson City | MO | Plains | 142,448 |
| Joplin | MO | Plains | 164,235 |
| Springfield | MO | Plains | 390,986 |
| St. Louis | MO IL | Plains | 2,787,701 |
| Kansas City | MO KS | Plains | 1,925,319 |
| St. Joseph | MO KS | Plains | 122,209 |
| Bismarck | ND | Plains | 97,924 |
| Fargo | ND MN | Plains | 181,520 |
| Grand Forks | ND MN | Plains | 96,046 |
| Lincoln | NE | Plains | 278,201 |
| Omaha - Council Bluffs | NE IA | Plains | 803,801 |
| Rapid City | SD | Plains | 117,487 |
| Sioux Falls | SD | Plains | 203,324 |