Kakamega High School managed a mean score of 7.7 (B- minus) in the 2019 Kenya Certificate of Secondary Education, KCSE, examination to lead other schools in Kakamega County. The school took position 111 nationally.
The second and third positions were scooped by Booker Academy and Butere girls high school; respectively.
Here is a list of the KCSE 2019 best 10 schools in Kakamega County:
| Pos in County | School | KCSE 2019 Mean | County | Pos Nationally |
| 1 | Kakamega High | 7.7 | Kakamega | 111 |
| 2 | Booker Academy | 7.508 | Kakamega | 120 |
| 3 | Butere Girls High | 7.452 | Kakamega | 129 |
| 4 | St Peters Mumias | 7.332 | Kakamega | 138 |
| 5 | St Peter’s Boys Mumias | 7.322 | Kakamega | 141 |
| 6 | Mabole Boys | 7.118 | Kakamega | 156 |
| 7 | St Mary’s Girls Mumias | 7.007 | Kakamega | 171 |
| 8 | St Peters Seminary | 7.000 | Kakamega | 172 |
| 8 | Eshibinga High | 6.9635 | Kakamega | 181 |
| 10 | Shikunga High | 6.842 | Kakamega | 187 |