Maranda High School emerged the best school in the KCSE 2021/2022 exams in the County with a mean score of 9.1 which is a B (plain).
2021/2022 BEST, TOP PERFORMING SCHOOLS IN SIAYA COUNTY
| Pos Nationally | School Name | Mean Score | County | |
| 26 | Maranda High School | 9.1 | B | Siaya |
| 27 | Ugenya High School | 9.05 | B | Siaya |
| 61 | Ambira High School | 8.45 | B- | Siaya |
| 104 | Rangala Girls | 7.79 | B- | Siaya |
| 126 | Ngiya Girls | 7.3 | C+ | Siaya |
| 127 | Sawagongo High School | 7.3 | C+ | Siaya |
| 130 | St Mary’s Yala | 7.25 | C+ | Siaya |
| 138 | Ramba Boys | 7.04 | C+ | Siaya |
