Member H.S. Districts
| Hinsdale Township High School District 86 55th & Grant Streets Hinsdale, IL 60521 |
Westmont Community Unit School District 201 133 S. Grant Westmont, IL 60559 |
| Glenbard Township High School District 87 596 Crescent Blvd. Glen Ellyn, IL 60137 |
Lisle Community Unit School District 202 1800 Short Street Lisle, IL 60532 |
| DuPage High School District 88 2 Friendship Plaza Addison, IL 60101 |
Naperville Community Unit School District 203 203 West Hillside Avenue Naperville, IL 60540 |
| Community High School District 94 326 Joliet Street West Chicago, IL 60185 |
Lyons Township High School District 204 100 S. Brainard Ave. La Grange, IL 60525-2101 |
| Community High School District 99 6301 Springside Ave. Downers Grove, IL 60516 |
Indian Prairie School District 204 780 Shoreline Drive Aurora, IL 60504 |
| Fenton Community High School District 100 1000 W. Green Street Bensenville, IL 60106 |
Elmhurst Community Unit School District 205 162 S. York Rd. Elmhurst, IL 60126 |
| Lake Park Community High School District 108 590 S. Medinah Road Roselle, IL 60172 |
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| Wheaton Warrenville Community Unit District 200 130 West Park Avenue Wheaton, IL 60189 |