Kisii County Best Performing Schools at 2022/2023 Exams
| Position Nationally | Name of School | Region | County | Mean Score | Mean Grade |
| 2 | CARDINAL OTUNGA | NYANZA | Kisii | 10.76 | A-{minus} |
| 15 | ST. PAULS IGONGA | NYANZA | Kisii | 10.24 | B+{plus} |
| 16 | Igonga DOK Secondary | NYANZA | Kisii | 10.24 | B+{plus} |
| 52 | MOBAMBA HIGH | NYANZA | Kisii | 9.284 | B{plain} |
| 59 | Kiage Tumaini High | NYANZA | Kisii | 9.23 | B{plain} |
| 67 | KISII SCHOOL | NYANZA | Kisii | 9.12 | B{plain} |
| 86 | Moteiribe Secondary | NYANZA | Kisii | 8.859 | B{plain} |
| 89 | Nyamagwa girls | NYANZA | Kisii | 8.823 | B{plain} |
| 107 | NYABURURU GIRLS | NYANZA | Kisii | 8.631 | B{plain} |
| 108 | Nyabite DOK Secondary | NYANZA | Kisii | 8.601 | B{plain} |
| 109 | NYAKOIBA HIGH | NYANZA | Kisii | 8.6 | B{plain} |
| 133 | BOGICHONCHO PAG | NYANZA | Kisii | 8.275 | B-{minus) |
| 161 | SAMETA HIGH | NYANZA | Kisii | 8.0637 | B-{minus) |
| 164 | NYABISASE MIXED | NYANZA | Kisii | 8.025 | B-{minus) |
| 165 | AMASEGE SDA | NYANZA | Kisii | 8.023 | B-{minus) |
| 166 | AMABUKO SEC | NYANZA | Kisii | 8.011 | B-{minus) |
| 183 | Riokindo Boys | NYANZA | Kisii | 7.83 | B-{minus) |
| 190 | Maroo Esinde | NYANZA | Kisii | 7.795 | B-{minus) |
| 204 | Omwari Secondary | NYANZA | Kisii | 7.647 | B-{minus) |
| 218 | Moi Gesusu | NYANZA | Kisii | 7.49 | C+{plus} |
| 224 | Mokubo Secondary | NYANZA | Kisii | 7.46 | C+{plus} |
| 237 | Kereri Girls High | NYANZA | Kisii | 7.312 | C+{plus} |
| 239 | Riooga Secondary | NYANZA | Kisii | 7.3 | C+{plus} |
| 243 | Itierio Girls | NYANZA | Kisii | 7.28 | C+{plus} |
| 276 | Ibacho High | NYANZA | Kisii | 7.053 | C+{plus} |
| 281 | Nyamagwa Boys | NYANZA | Kisii | 7.0269 | C+{plus} |
| 285 | Ichuni girls | NYANZA | Kisii | 7 | C+{plus} |
| 358 | Nyabigena Boys | NYANZA | Kisii | 5.88502 | C (plain) |