| School | District | County |
|---|---|---|
| Hollister Middle | Hollister R-V | Taney |
| Holman | Ferguson-Florissant R-Ii | St Louis |
| Holt | Kearney R-I | Clay |
| Holt Co. | Holt Co. R-Ii | Holt |
| Horace Mann | Springfield R-Xii | Greene |
| Horace Mann | Sedalia 200 | Pettis |
| Hornersville Middle | Senath-Hornersville C-8 | Dunklin |
| Hosea | St. Joseph | Buchanan |
| House Springs | Northwest R-I | Jefferson |
| House Springs | Northwest R-I | Jefferson |
| Houston | Houston R-I | Texas |
| Houston | Houston R-I | Texas |
| Howard Co. | Howard Co. R-Ii | Howard |
| Howell Valley | Howell Valley R-I | Howell |
| Hudson | Hudson R-Ix | Bates |
| Hudson | Webster Groves | St Louis |
| Humansville | Humansville R-Iv | Polk |
| Humboldt | St. Joseph | Buchanan |
| Hume | Hume R-Viii | Bates |
| Hurley | Hurley R-I | Stone |
| Hurricane Deck | Camdenton R-Iii | Camden |
| Hyde | St. Joseph | Buchanan |
| Iberia | Iberia R-V | Miller |
| Ida Cannon Middle | Elsberry R-Ii | Lincoln |
| Independence | Francis Howell R-Iii | St Charles |
| Indian Creek | Center 58 | Jackson |
| Ingels | Hickman Mills C-1 | Jackson |
| Intermediate | North St. Francois Co. R-I | Ste Genevieve |
| Irving | Joplin R-Viii | Jasper |
| Iveland | Ritenour | St Louis |
| J. S. Chick | Kansas City 33 | Jackson |
| Jackson | St. Louis City | St Louis City |
| Jackson Park | University City | St Louis |
| James | Kansas City 33 | Jackson |
| James E. Freer | Windsor C-1 | Jefferson |
| James Lewis | Blue Springs R-Iv | Jackson |
| James Walker | Blue Springs R-Iv | Jackson |
| Jamestown | Hazelwood | St Louis |
| Jana | Hazelwood | St Louis |
| Jasper Co. | Jasper Co. R-V | Jasper |
| Jefferson | Cape Girardeau 63 | Cape Girardeau |
| Jefferson | Joplin R-Viii | Jasper |
| Jefferson | Jefferson C-123 | Nodaway |
| Jefferson | Normandy | St Louis |
| Jefferson | St. Louis City | St Louis City |
| Jefferson | Farmington R-Vii | Ste Genevieve |
| Jeffries | Springfield R-Xii | Greene |
| Joe D. Esther | Lebanon R-Iii | Laclede |
| Joel E. Barber | Laclede Co. C-5 | Laclede |
| John Glenn | Savannah R-Iii | Andrew |