TEAI Region 8 Bond County ● Greenville High School, Greenville ​ ​ ● Mulberry Grove High School Calhoun County ● Brussels High School, Brussels ​ ​ ● Calhoun High School, Hardin ​ ​ Christian County ● Edinburg High School, Edinburg ​ ​ ● Morrisonville High School, Morrisonville ​ ​ ● Pana Senior High School, Pana ​ ​ ● South Fork Jr Sr High School (6–12), Kincaid ​ ​ ● Taylorville High School, Taylorville ​ ​ Effingham County ● Altamont High School, Altamont ​ ​ ● Beecher City Junior-Senior High School, Beecher City ​ ​ ● Dieterich Junior-Senior High School, Dieterich ​ ​ ● Effingham High School, Effingham ​ ​ ● St. Anthony High School, Effingham ​ ​ ● Teutopolis High School, Teutopolis ​ ​ Fayette County ● Brownstown Junior-Senior High School, Brownstown ​ ​ ● Ramsey High School, Ramsey ​ ​ ● St. Elmo Junior-Senior High School, St. Elmo ​ ​ ● Vandalia Community High School, Vandalia ​ ​ Greene County ● Carrollton High School, Carrollton ● Greenfield High School, Greenfield ​ ​ ● North Greene High School, White Hall ​ ​ Jersey County ● Jersey Community High School, Jerseyville ​ ​ Macoupin County ● Bunker Hill High School, Bunker Hill ​ ​ ● Carlinville High School, Carlinville ​ ​ ● Gillespie High School, Gillespie ​ ​ ● Mount Olive High School, Mount Olive ​ ​ ● North Mac High School, Virden ​ ​ ● Northwestern High School, Palmyra ​ ​ ● Southwestern High School, Piasa ​ ​ ● Staunton High School, Staunton ​ ​ Madison County ● Alton Senior High School, Alton ​ ​ ● Civic Memorial High School, Bethalto ​ ​ ● Collinsville High School, Collinsville ​ ​ ● East Alton-Wood River High School, Wood River ​ ​ ● Edwardsville High School, Edwardsville ​ ​ ● Father McGivney Catholic High School, Maryville ​ ​ ● Granite City High School, Granite City ​ ​ ● Highland High School, Highland ​ ​ ● Madison Senior High School, Madison ​ ​ ● Marquette Catholic High School, Alton ​ ​ ● Metro-East Lutheran High School, Edwardsville ​ ​ ● Roxana High School, Roxana ​ ​ ● Triad High School, Troy ​ ​ Montgomery County ● Hillsboro High School, Hillsboro ​ ​ ● Lincolnwood High School, Raymond ​ ​ ● Litchfield High School, Litchfield ​ ​ ● Nokomis High School, Nokomis ​ ​ .