For the 2025-26 school year, the Wisconsin Interscholastic Athletic Association will begin sponsoring a new athletic conference in south central Wisconsin. Initial membership will consist of seven schools formerly in the Capitol Conference and one school from the Rock Valley Conference: [1]
| School | Location | Affiliation | Enrollment | Mascot | Colors | Joined | Former Conference |
|---|---|---|---|---|---|---|---|
| Belleville | Cambridge, WI | Public | 279 | Wildcats | 2025 | Capitol | |
| Brodhead | Brodhead, WI | Public | 315 | Cardinals | 2025 | Rock Valley | |
| Cambridge | Cambridge, WI | Public | 266 | Bluejays | 2025 | Capitol | |
| Marshall | Marshall, WI | Public | 292 | Cardinals | 2025 | Capitol | |
| New Glarus | New Glarus, WI | Public | 323 | Glarner Knights | 2025 | Capitol | |
| Poynette | Poynette, WI | Public | 310 | Pumas | 2025 | Capitol | |
| Waterloo | Waterloo, WI | Public | 259 | Pirates | 2025 | Capitol | |
| Wisconsin Heights | Mazomanie, WI | Public | 228 | Vanguards | 2025 | Capitol |
