Indiana High School Athletics Conferences: Mid-Eastern – Northwestern Mid-State Conference Mid-State Conference

| School | Mascot | Location_ | Enrollment | IHSAA_Class | IHSAA_Football_Class | County |
|---|---|---|---|---|---|---|
| Indianapolis Decatur Central | Hawks | Indianapolis | 1870 | AAAA | AAAAA | 49 Marion |
| Franklin Community | Grizzly Cubs | Franklin | 1601 | AAAA | AAAAA | 41 Johnson |
| Greenwood | Woodmen | Greenwood | 1167 | AAAA | AAAA | 41 Johnson |
| Martinsville | Artesians | Martinsville | 1661 | AAAA | AAAAA | 55 Morgan |
| Mooresville | Pioneers | Mooresville | 1348 | AAAA | AAAA | 55 Morgan |
| Plainfield | Quakers | Plainfield | 1388 | AAAA | AAAA | 32 Hendricks |
| Whiteland Community | Warriors | Whiteland | 1713 | AAAA | AAAAA | 41 Johnson |