Tri-River Conference (IHSAA) Former members Former members

| School | Location_ | Mascot | County | Year_Joined | Year_Left | Conference_Joined |
|---|---|---|---|---|---|---|
| Van Buren | Carbon | Blue Devils | 11 Clay | 1964 | 1984 | none (consolidated into Northview ) |
| Union (Dugger) * | Dugger | Bulldogs | 77 Sullivan | 1965 | 2010 | SW Indiana |
| North Central (Farmersburg) | Farmersburg | Thunderbirds | 77 Sullivan | 1977 | 2010 | SW Indiana |
| Eminence | Eminence | Eels | 55 Morgan | 1986 | 2010 | Independents |
| Sullivan | Sullivan | Golden Arrows | 77 Sullivan | 1986 | 1999 | Western Indiana |
| Linton Stockton * | Linton | Miners | 28 Greene | 1991 | 2010 | SW Indiana |