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 schools. St. Brigids Kiminini, Kakamega High School and Butere Girls are the national schools in Kakamega county.
Read also; St. Brigids Kiminini location, contacts, kcse results, knec code, form one selection
Extra county secondary schools in Kakamega county are grouped into three clusters; cluster one(C1), cluster two(C2) and cluster three (C3).
Read also; Top ten best private primary schools in Kakamega County
Archbishop Njenga Girls’ High School, Butere Boys High School, St. Mary’s Mumias Girls High School among other schools form cluster one schools in Kakamega County.
Here is a list of best performing Extra County Secondary schools in Kakamega County
| S/N | SCHOOL CODE | SCHOOL NAME | TYPE | CLUSTER |
| 1. | 37607201 | Archbishop Njenga Girls’ High School | Girls | C1 |
| 2. | 37608003 | Butere Boys High School | Boys | C1 |
| 3. | 37615001 | Musingu Boys High School | Boys | C1 |
| 4. | 37615004 | Musoli Girls High School | Girls | C1 |
| 5. | 37615009 | Shikunga Secondary School | Mixed | C1 |
| 6. | 37616007 | The Sacred Heart Girls, Mukumu | Girls | C1 |
| 7. | 37617210 | St. Mary’s Mumias Girls High School | Girls | C1 |
| 8. | 37617211 | St. Peter’s Mumias Boys’ High School | Boys | C1 |
| 9. | 37624002 | Kivaywa Secondary School | Boys | C1 |
| 10. | 37625106 | Mwihila High School | Boys | C1 |
| 11. | 37627112 | St. Mathias Kholera Boys Secondary School | Boys | C1 |
| 12. | 37631302 | St John The Baptist Likuyani Secondary School | Boys | C1 |
| 13. | 37632101 | Chebuyusi Boys High School | Boys | C1 |
| 14. | 37634307 | Lubinu Secondary School | Boys | C1 |
| 15. | 37607203 | Lugari Secondary School | Boys | C2 |
| 16. | 37614102 | Malava Boys High School | Boys | C2 |
| 17. | 37615003 | Eregi Girls High School | Girls | C2 |
| 18. | 37616006 | St.Ignatius Mukumu Boys High School | Boys | C2 |
| 19. | 37627109 | Mary Seat Of Wisdom Bulimbo Girls Secondary School | Girls | C2 |
| 20. | 37631401 | Moi Girls’ Secondary School-Nangili | Girls | C2 |
| 21. | 37632304 | Ingotse High School | Boys | C2 |
| 22. | 37603005 | Bishop Sulumeti Girls Secondary School | Girls | C3 |
| 23. | 37607101 | Mautuma Secondary School | Boys | C3 |
| 24. | 37616001 | St. Agnes Girls High School – Shibuye | Girls | C3 |
| 25. | 37616020 | Shanderema Secondary School | Boys | C3 |
| 26. | 37631502 | St.Anne’s Nzoia Girls’ Secondary School | Girls | C3 |
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