Siaya County KCSE 2022-2023 Ranking of Best 100 Schools (Ultimate List)
| Position Nationally | Name of School | Region | County | Mean Score | Mean Grade |
| 33 | Sawagongo High | NYANZA | Siaya | 9.619 | B+{plus} |
| 37 | MARANDA SCHOOL | NYANZA | Siaya | 9.541 | B+{plus} |
| 134 | Rang’ala Girls | NYANZA | Siaya | 8.2264 | B-{minus) |
| 135 | RAN’GALA GIRLS | NYANZA | Siaya | 8.226 | B-{minus) |
| 146 | RAN’GALA BOYS | NYANZA | Siaya | 8.117 | B-{minus) |
| 164 | Ramba Boys | NYANZA | Siaya | 7.924 | B-{minus) |
| 185 | Lwak Girls | NYANZA | Siaya | 7.7 | B-{minus) |
| 193 | Ugenya High | NYANZA | Siaya | 7.5 | B-{minus) |
| 195 | St Mary’s Yala | NYANZA | Siaya | 7.5 | B-{minus) |