In Kenya, extra county schools fall in the second tier after national schools. In recent years, cases have emerged where extra county schools perform better than national school. St Patricks Iten and Moi Girls Kapsowar are the national schools in Elgeyo Marakwet county. Extra county secondary schools in Elgeyo Marakwet county are grouped into three clusters; cluster one(C1), cluster two(C2) and cluster three (C3). Sing’ore Girls Secondary School, Tambach Boys High School, Our Lady Of Glory-Kaptagat Girls High School among other schools form cluster one schools in Elgeyo Marakwet County.
Here is a list of best performing Extra County Secondary schools in Elgeyo Marakwet County
| S/N | SCHOOL CODE | SCHOOL NAME | TYPE | CLUSTER |
| 1. | 34518102 | Sing’ore Girls Secondary School | Girls | C1 |
| 2. | 34518401 | Tambach Boys High School | Boys | C1 |
| 3. | 34520101 | Chebara Secondary School | Boys | C1 |
| 4. | 34559201 | Kapkenda Girls’ High School | Girls | C1 |
| 5. | 34559208 | Our Lady Of Glory-Kaptagat Girls High School | Girls | C1 |
| 6. | 34559502 | Metkei Secondary School | Girls | C1 |
| 7. | 34518104 | Kipsoen Secondary School | Boys | C2 |
| 8. | 34518402 | Aic Girls Secondary School Kessup | Girls | C2 |
| 9. | 34520102 | St. Peter’s Marakwet Boys Secondary School | Boys | C2 |
| 10. | 34520103 | Yemit Boys High School | Boys | C2 |
| 11. | 34520104 | Santa Maria Girls Secondary School | Girls | C2 |
| 12. | 34559501 | Simotwo Secondary School | Boys | C2 |
| 13. | 34561301 | Sambirir Girls Secondary School | Girls | C2 |
| 14. | 34520109 | Yemit Girls’ Secondary School | Girls | C3 |
| 15. | 34520202 | Kapsowar Boys’ Secondary School | Boys | C3 |
| 16. | 34559204 | Mokwo Girls Secondary School | Girls | C3 |
| 17. | 34559503 | Kipsaos Secondary School | Boys | C3 |
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