List of High Schools in St. Charles County Missouri | ||||||
|---|---|---|---|---|---|---|
| Map Key | School Name | School District | City | Total Students | ||
| Fort Zumwalt East High School | Fort Zumwalt R-II School District | St Peters | 1257 | |||
| Fort Zumwalt North High School | Fort Zumwalt R-II School District | O'Fallon | 1505 | |||
| Fort Zumwalt South High School | Fort Zumwalt R-II School District | St Peters | 1372 | |||
| Fort Zumwalt West High School | Fort Zumwalt R-II School District | O'Fallon | 1902 | |||
| Francis Howell Central High School | Francis Howell R-III School District | Cottleville | 1807 | |||
| Francis Howell North High School | Francis Howell R-III School District | St Charles | 1667 | |||
| Francis Howell Union High School | Francis Howell R-III School District | O'Fallon | 0 | |||
| Holt High School | Wentzville R-IV School District | Wentzville | 1976 | |||
| Liberty High School | Wentzville R-IV School District | Lake St. Louis | 1480 | |||
| Orchard Farm High School | Orchard Farm R-V School District | St. Charles | 573 | |||
| St. Charles High School | St. Charles R-VI School District | St Charles | 778 | |||
| St. Charles West High School | St. Charles R-VI School District | St Charles | 657 | |||
| Timberland High School | Wentzville R-IV School District | Wentzville | 1845 | |||