Southwestern Indiana Conference Membership Membership

| School | Location_ | Mascot | Enrollment | IHSAA_Class | County | Year_Joined | Previous_Conference |
|---|---|---|---|---|---|---|---|
| Bloomfield * | Bloomfield | Cardinals | 358 | AA | 28 Greene | 1939 | Independents |
| Clay City * | Clay City | Eels | 278 | A | 11 Clay | 1992 | Tri-River |
| Eastern Greene | Bloomfield | Thunderbirds | 440 | AA | 28 Greene | 1962 | none (new school) |
| Linton Stockton * | Linton | Miners | 404 | AA | 28 Greene | 1980 | Independents |
| North Central (Farmersburg) | Farmersburg | Thunderbirds | 525 | A | 77 Sullivan | 2010 | Tri-River |
| North Daviess | Elnora | Cougars | 321 | A | 14 Daviess | 1986 | Blue Chip Conference |
| Shakamak * | Jasonville | Lakers | 256 | A | 28 Greene | 1968 | Tri-River |
| Union (Dugger) * | Dugger | Bulldogs | 127 | A | 77 Sullivan | 1974 | Tri-River |
| White River Valley | Switz City | Wolverines | 273 | A | 28 Greene | 1990 | none (new school) |