Tri-Eastern Conference (IHSAA) Membership Membership

| School | Location_ | Mascot | Size_ | IHSAA_Class | _County | Year_Joined | Previous_Conference |
|---|---|---|---|---|---|---|---|
| Cambridge City Lincoln | Cambridge City | Golden Eagles | 367 | AA | 89 Wayne | 1965 | none (new school) |
| Centerville | Centerville | Bulldogs | 530 | AA | 89 Wayne | 1962 | East Central |
| Hagerstown | Hagerstown | Tigers | 401 | AA | 89 Wayne | 1966 | Mississinewa Valley |
| Northeastern | Fountain City | Knights | 379 | AA | 89 Wayne | 1974 | Mid-Eastern |
| Tri | Straughn | Titans | 274 | A | 33 Henry | 1989 | Big Blue River |
| Union City Community | Union City | Indians | 287 | A | 68 Randolph | 1962 | East Central |
| Union County | Liberty | Patriots | 535 | AA | 81 Union | 1973 | none (new school) |
| Winchester Community | Winchester | Golden Falcons | 494 | AA | 68 Randolph | 1972 | Mississinewa Valley |