Kitui County Best Performing Schools at 2022/2023 Exams
| Position Nationally | Name of School | Region | County | Mean Score | Mean Grade |
| 25 | Matinyani Secondary | Eastern | Kitui | 9.942 | B+{plus} |
| 49 | Kitui School | Eastern | Kitui | 9.312 | B{plain} |
| 114 | AIC Sombe Girls | Eastern | Kitui | 8.545 | B{plain} |
| 147 | ST CHARLES LWANGA SCHOOL KITUI | Eastern | Kitui | 8.18 | B-{minus) |
| 148 | St. Charles Lwanga | Eastern | Kitui | 8.18 | B-{minus) |
| 154 | MUTHALE GIRLS HIGH | Eastern | kitui | 8.11 | B-{minus) |
| 171 | KISASI SECONDARY | Eastern | kitui | 7.965 | B-{minus) |
| 294 | ST ANGELAS GIRLS SECONDARY | Eastern | Kitui | 6.935 | C+{plus} |
| 313 | KATHEKA BOYS SECONDARY | Eastern | Kitui | 6.4818 | #VALUE! |
| 375 | St Peters Voo Secondary | Eastern | Kitui | 5.667 | C (plain) |
