| SCHOOL | LOCATION |
| Academy of St. Louis (Special Education K-12) | Manchester |
| Al Salam Day School | Manchester |
| All Saints – St. Ferdinand School | Florissant |
| All Saints – St. Norbert School | Florissant |
| All Saints – St. Rose Philippine Duchesne School | Florissant |
| All Saints School | Saint Peters |
| Annunziata – Department of Special Education | St. Louis County |
| Ascension School-Chesterfield | Chesterfield |
| Assumption School-Mattese | St. Louis County |
| Assumption School-O’Fallon | O’Fallon |
| Atonement Lutheran | Florissant |
| Barat Academy | Chesterfield |
| Bishop DuBourg High School | St. Louis City |
| Blessed Teresa of Calcutta | Ferguson |
| Cardinal Ritter College Prep | St. Louis City |
| Chaminade College Preparatory School | St. Louis County |
| Christ the King School | University City |
| Christ, Prince of Peace School | Manchester |
| Christ Community Lutheran School | St. Louis County |
| Christian Brothers College High School | St. Louis County |
| City Academy | St. Louis City |
| Cor Jesu Academy | St. Louis County |
| Crossroads College Prep | St. Louis City |
| De Smet Jesuit High School | St. Louis County |
| Duchesne High School | St. Charles |
| Good Shepherd Catholic School-Hillsboro | Hillsboro |
| Greenways Academy | St. Louis County |
| Holy Child School | Arnold |
| Holy Cross – Annunciation School | Webster Grove |
| Holy Cross – Our Lady of Providence School | St. Louis County |
| Holy Cross – St. Michael the Archangel School | St. Louis County |
| Holy Infant School | Ballwin |
| Holy Redeemer School | Webster Groves |
| Holy Rosary School | Warrenton |
| Holy Spirit School | Maryland Heights |
| Immacolata School | Richmond Heights |
| Immaculate Conception School – Dardenne | Dardenne Prairie |
| Immaculate Conception School – Old Monroe | Old Monroe |
| Immaculate Conception School – Union | Union |
| Incarnate Word Academy – High School | St. Louis County |
| Incarnate Word School – Elementary School | Chesterfield |
| Little Flower School | Richmond Heights |
| Living Word Christian School | O’Fallon |
| LOGOS School | St. Louis County |
| Loyola Academy | St. Louis City |
| Lutheran South High School | St. Louis County |
| Marian Middle School | St. Louis City |
| Mary Institute Country Day School | St. Louis County |
| Mary, Queen of Peace School | Webster Groves |
| Miriam School and Learning Center | St. Louis County |
| Most Sacred Heart School – Eureka | Eureka |
| Nerinx Hall | St. Louis County |
| New City School | St. Louis City |
| Notre Dame High School | St. Louis City |
| Our Lady of Guadalupe School | St. Louis County |
| Our Lady of Lourdes School – University City | University City |
| Our Lady of Lourdes School – Washington | Washington |
| Our Lady of the Pillar School | St. Louis County |
| Our Lady School | Festus |
| Principia School | St. Louis County |
| Queen of All Saints School | St. Louis County |
| River Roads Lutheran School | St. Louis County |
| Rosati-Kain High School | St. Louis City |
| Sacred Heart School – Florissant | Florissant |
| Sacred Heart School – Troy | Troy |
| Sacred Heart School – Valley Park | Valley Park |
| Salem Lutheran School – Florissant | Florissant |
| Seton Regional Catholic School | Saint Charles |
| South City Catholic Academy | St. Louis City |
| South City Catholic Academy Learning Center – Department of Special Education | St. Louis City |
| South City Community School | St. Louis City |
| St. Agnes School | Bloomsdale |
| St. Alban Roe School | Wildwood |
| St. Alphonsus School | Silex |
| St. Ambrose School | St. Louis City |
| St. Ann School | Normandy |
| St. Anthony School – Sullivan | Sullivan |
| St. Austin School | St. Louis County |
| St. Bridget of Kildare School | Pacific |
| St. Catherine Laboure School | St. Louis County |
| St. Cecilia School and Academy | St. Louis City |
| St. Charles Borromeo School | Saint Charles |
| St. Clare of Assisi School | Ellisville |
| St. Cletus School | Saint Charles |
| St. Dominic High School | O’Fallon |
| St. Frances Cabrini Academy | St. Louis City |
| St. Francis Borgia Regional High School | Washington |
| St. Francis Borgia School – Washington (Elementary School) | Washington |
| St. Francis of Assisi School | St. Louis County |
| St. Gabriel the Archangel School | St. Louis City |
| St. Gerard Majella School | Kirkwood |
| St. Gertrude School | Washington |
| St. Ignatius Loyola School | Marthasville |
| St. Joachim School | Old Mines |
| St. John Lutheran School | Arnold |
| St. John Paul II Preparatory School | St. Charles |
| St. John the Baptist School – Gildehaus | Villa Ridge |
| St. John Vianney High School | St. Louis County |
| St. Joseph School – Cottleville | Saint Charles |
| St. Joseph School – Farmington | Farmington |
| St. Joseph School – Imperial | Imperial |
| St. Joseph School – Josephville | Wentzville |
| St. Joseph School – Zell | Ste. Geneveive |
| St. Joseph’s Academy | St. Louis County |
| St. Louis Catholic Academy | St. Louis City |
| St. Louis Priory School | St. Louis County |
| St. Louis University High School | St. Louis City |
| St. Margaret Mary Alacoque School | St. Louis County |
| St. Margaret of Scotland School | St. Louis City |
| St. Mark School | St. Louis City |
| St. Mary Magdalen School | Brentwood |
| St. Mary’s High School | St. Louis City |
| St. Michael School of Clayton | St. Louis County |
| St. Monica School | Creve Coeur |
| St. Patrick School | Wentzville |
| St. Paul School – Fenton | Fenton |
| St. Paul School – St. Paul | Saint Paul |
| St. Peter School – Kirkwood | Kirkwood |
| St. Pius X High School | Festus |
| St. Raphael the Archangel School | St. Louis City |
| St. Roch School | St. Louis City |
| St. Rose of Lima School | DeSoto |
| St. Simon the Apostle School | St. Louis County |
| St. Stephen Protomartyr School | St. Louis City |
| St. Theodore School | Wentzville |
| St. Vincent Elementary School – Perryville | Perryville |
| St. Vincent High School | Perryville |
| St. Vincent Junior High School – Perry. (7&8) | Perryville |
| St. Vincent School – Dutzow | Marthasville |
| Ste. Genevieve du Bois School | St. Louis County |
| Sts. Joachim & Ann School | St. Charles |
| The Freedom School | St. Louis County |
| Tower Grove Christian | St. Louis City |
| Transformation Christian School | St. Louis City |
| Twin Oaks Christian School | Ballwin |
| Ursuline Academy | St. Louis County |
| Valle Catholic Grade School | Ste. Genevieve |
| Valle Catholic High School | Ste. Genevieve |
| Villa Duchesne and Oak Hill School | St. Louis County |
| Visitation Academy | St. Louis County |
| Word of Life Lutheran School | St. Louis City |