Machakos County Best Performing Schools at 2022/2023 Exams
| Position Nationally | Name of School | Region | County | Mean Score | Mean Grade |
| 66 | KATHIANI GIRLS HIGH | Eastern | Machakos | 9.1235 | B{plain} |
| 167 | MACHAKOS BOYS | Eastern | Machakos | 8.0081 | B-{minus) |
| 198 | CARING HEARTS HIGH SCHOOL | Eastern | Machakos | 7.76 | B-{minus) |
| 223 | MISYANI GIRLS HIGH | Eastern | Machakos | 7.4823 | C+{plus} |
| 261 | Machakos Girls | Eastern | Machakos | 7.1406 | C+{plus} |
| 290 | Kabaa High | Eastern | Machakos | 6.98 | C+{plus} |
| 315 | MASINGA BOYS HIGH | Eastern | Machakos | 6.455 | C (plain) |