| City | Alumni |
| Algonquin | 1 |
| Alton | 1 |
| Amboy | 1 |
| Antioch | 1 |
| Arlington Heights | 6 |
| Auburn | 1 |
| Aurora | 2 |
| Austin | 1 |
| Avon | 1 |
| Barrington | 11 |
| Barrington Hills | 3 |
| Batavia | 4 |
| Belvidere | 1 |
| Benton | 1 |
| Berwyn | 2 |
| Bloomington | 3 |
| Buffalo Grove | 3 |
| Burr Ridge | 1 |
| Carbondale | 3 |
| Carol Stream | 2 |
| Carthage | 1 |
| Cary | 1 |
| Caseyville | 1 |
| Champaign | 8 |
| Charleston | 1 |
| Cherry Valley | 1 |
| Chicago | 251 |
| Cissna Park | 1 |
| Clarendon Hills | 3 |
| Clinton | 2 |
| Coal Valley | 1 |
| Collinsville | 1 |
| Crystal Lake | 2 |
| Danville | 2 |
| Darien | 1 |
| De Kalb | 2 |
| Decatur | 1 |
| Deerfield | 10 |
| Des Plaines | 1 |
| Dixon | 3 |
| Downers Grove | 7 |
| Dundee | 2 |
| E Peoria | 2 |
| Edwardsville | 3 |
| Effingham | 1 |
| Elburn | 1 |
| Elgin | 3 |
| Elk Grove Village | 1 |
| Elmhurst | 1 |
| Evanston | 54 |
| Fenton | 1 |
| Flossmoor | 3 |
| Frankfort | 2 |
| Freeport | 2 |
| Galesburg | 3 |
| Geneva | 1 |
| Georgetown | 1 |
| Glen Ellyn | 4 |
| Glencoe | 11 |
| Glenview | 22 |
| Godfrey | 2 |
| Golf | 2 |
| Grayslake | 3 |
| Gurnee | 4 |
| Hampshire | 1 |
| Hawthorn Woods | 1 |
| Highland | 2 |
| Highland Park | 28 |
| Highwood | 1 |
| Hinsdale | 12 |
| Homewood | 2 |
| Hudson | 1 |
| Huntley | 1 |
| Itasca | 1 |
| Jacksonville | 3 |
| Joliet | 3 |
| Kenilworth | 6 |
| Kewanee | 1 |
| Kildeer | 1 |
| La Grange | 2 |
| La Grange Park | 1 |
| La Harpe | 1 |
| Lake Bluff | 6 |
| Lake Forest | 20 |
| Lake Zurich | 2 |
| Lemont | 2 |
| Lexington | 1 |
| Libertyville | 7 |
| Lincolnshire | 3 |
| Lisle | 1 |
| Macomb | 1 |
| Macon | 1 |
| Mahomet | 1 |
| Makanda | 1 |
| Marengo | 1 |
| McHenry | 1 |
| Medinah | 1 |
| Moline | 2 |
| Monticello | 1 |
| Morris | 1 |
| Morton Grove | 3 |
| Mount Prospect | 2 |
| Mount Vernon | 1 |
| Murphysboro | 1 |
| Naperville | 16 |
| New Lenox | 2 |
| Normal | 2 |
| Northbrook | 21 |
| Northfield | 5 |
| Oak Brook | 2 |
| Oak Park | 18 |
| O'Fallon | 1 |
| Okawville | 1 |
| Olympia Fields | 1 |
| Orland Park | 1 |
| Oswego | 3 |
| Palatine | 2 |
| Palos Park | 1 |
| Park Ridge | 3 |
| Pecatonica | 1 |
| Peoria | 6 |
| Plainfield | 2 |
| Princeton | 2 |
| Prospect Heights | 1 |
| Quincy | 1 |
| River Forest | 1 |
| Riverside | 1 |
| Riverwood | 1 |
| Robinson | 1 |
| Rock Island | 1 |
| Rockford | 6 |
| Rockton | 1 |
| Rolling Meadows | 1 |
| Roselle | 1 |
| Saint Charles | 5 |
| Salem | 1 |
| Savoy | 1 |
| Schaumburg | 3 |
| Sleepy Hollow | 1 |
| Springfield | 6 |
| Sullivan | 1 |
| Tower Lakes | 1 |
| Urbana | 6 |
| Ursa | 1 |
| Vernon Hills | 3 |
| Villa Park | 2 |
| Volo | 1 |
| Washington | 1 |
| Waukegan | 2 |
| Westchester | 1 |
| Western Springs | 2 |
| Wheaton | 6 |
| Wheeling | 1 |
| Wilmette | 29 |
| Winfield | 2 |
| Winnetka | 30 |
| Woodstock | 4 |