Index of Member Schools

* Last updated at 8:30 am on Friday, December 13, 2024

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— Sacred Heart-Griffin, see Springfield (Sacred Heart-Griffin)

St. Anne

— St. Anthony, see Effingham (St. Anthony)

— St. Bede, see Peru (St. Bede)

St. Charles (East)

St. Charles (North)

— St. Edward, see Elgin (St. Edward)

St. Elmo

— St. Francis, see Wheaton (St. Francis)

— St. Francis de Sales, see Chicago (St. Francis de Sales)

— St. Ignatius College Prep, see Chicago (St. Ignatius College Prep)

— St. John's Lutheran School, see Mattoon (St. John's Lutheran School)

St. Joseph (S.J.-Ogden)

— St. Laurence, see Burbank (St. Laurence)

— St. Patrick, see Chicago (St. Patrick)

— St. Rita, see Chicago (St. Rita)

— St. Teresa, see Decatur (St. Teresa)

— St. Thomas More, see Champaign (St. Thomas More)

— St. Viator, see Arlington Heights (St. Viator)

Salem

— Salt Fork, see Catlin (Salt Fork)

— Sandburg, see Orland Park (Sandburg)

Sandoval

Sandwich

— Sangamon Valley, see Niantic (Sangamon Valley)

Savanna (West Carroll)

Scales Mound

Schaumburg (H.S.)

Schaumburg (S. Christian)

— Schlarman, see Danville (Schlarman)

— Schurz, see Chicago (Schurz)

Sciota (West Prairie)

Seneca

— Senn, see Chicago (Senn)

Serena

Sesser (S.-Valier)

— Seymour, see Payson (Seymour)

Shabbona (Indian Creek)

— Shawnee, see Wolf Lake (Shawnee)

Shelbyville

— Shepard, see Palos Heights (Shepard)

Sherrard

— Shiloh, see Hume (Shiloh)

— Simeon, see Chicago (Simeon)

— SIUE Charter, see East St. Louis (SIUE Charter)

Skokie (Ida Crown)

Skokie (Niles North)

Skokie (Niles West)

Skokie (Yeshiva)

— Solorio Academy, see Chicago (Solorio Academy)

Somonauk

— South, see Crystal Lake (South)

— South, see Downers Grove (South)

— South, see Plainfield (South)

South Beloit

— South Central, see Farina (South Central)

South Elgin

— South Fork, see Kincaid (South Fork)

South Holland (Thornwood)

South Holland (Unity Christian Academy)

— South Shore International College Prep, see Chicago (South Shore International College Prep)

— Southeast, see Springfield (Southeast)

— Southeastern, see Augusta (Southeastern)

— Southland College Prep Charter, see Richton Park (Southland College Prep Charter)

— Southwestern, see Piasa (Southwestern)

Sparta

— Spoon River Valley, see London Mills (Spoon River Valley)

Spring Valley (Hall)

Springfield (Calvary)

Springfield (H.S.)

Springfield (Lanphier)

Springfield (Lutheran)

Springfield (Sacred Heart-Griffin)

Springfield (Southeast)

— Spry Community Links, see Chicago (Spry Community Links)

— Stagg, see Palos Hills (Stagg)

Stanford (Olympia)

— Stark County, see Toulon (Stark County)

Staunton

Steeleville

— Steinmetz, see Chicago (Steinmetz)

Sterling (H.S.)

Sterling (Newman Central Catholic)

— Stevenson, see Lincolnshire (Stevenson)

— Stewardson-Strasburg, see Strasburg (Stewardson-S.)

Stillman Valley

Stockton

Strasburg (Stewardson-S.)

Streamwood

Streator (Twp.)

Streator (Woodland)

— Sullivan, see Chicago (Sullivan)

Sullivan

Summit (Argo)

Sycamore (H.S.)