| Akaiga Secondary School | Boarding | Boys |
| Akirang’Ondu Secondary School | Boarding | Mixed |
| Akithii Girls Secondary School | Boarding | Girls |
| Antuambui Secondary School | Boarding | Boys |
| Antubetwe Kiongo Secondary School | Boarding | Mixed |
| Athwana High School | Boarding | Mixed |
| Chugu Boys Secondary School | Boarding | Boys |
| Fgck Kisima Secondary School | Boarding | Mixed |
| Gaitu Secondary School | Boarding | Mixed |
| Gakando Girls Secondary School | Boarding | Girls |
| Githongo Secondary School | Boarding | Boys |
| Igandene Secondary School | Boarding | Boys |
| Igoki Boys’ Secondary School | Boarding | Boys |
| Irindiro Secondary School | Boarding | Mixed |
| Kaliene Secondary School | Boarding | Mixed |
| Kanjalu Girls Secondary School | Boarding | Girls |
| Kaongo Girls Secondary School | Boarding | Girls |
| Karama Boys Secondary School | Boarding | Boys |
| Karugwa Girls’ Secondary School | Boarding | Girls |
| Kathera Girls Secondary School | Boarding | Girls |
| Kathera Secondary School | Boarding | Boys |
| Katheri Girls High School | Boarding | Girls |
| Katheri High School | Boarding | Boys |
| Keeru Secondary School | Boarding | Boys |
| Kiamuri Secondary School | Boarding | Mixed |
| Kiangua Secondary School | Boarding | Mixed |
| Kianjai Girls Secondary School | Boarding | Girls |
| Kianjai Secondary School | Boarding | Boys |
| Kibuline Secondary School | Boarding | Mixed |
| Kiirua Boys Secondary School | Boarding | Boys |
| Kimachia Secondary School | Boarding | Mixed |
| Kiriene Mixed Day And Girls Boarding Secondary Sc H | Boarding | Girls |
| Kirige High School | Boarding | Boys |
| Kithangari Boys Secondary School | Boarding | Boys |
| Kithangari Girls Secondary School | Boarding | Girls |
| Kithatu Girls Secondary School | Boarding | Girls |
| Kitheo Secondary School | Boarding | Mixed |
| Kithirune Girls’ Secondary School | Boarding | Girls |
| Machikine Girls Secondary School | Boarding | Girls |
| Mck Mituntu Girls’ Secondary School | Boarding | Girls |
| Mikumbune Boys Secondary School | Boarding | Boys |
| Miruriiri Boys Secondary School | Boarding | Boys |
| Miruriiri Girls Secondary School | Boarding | Girls |
| Mucheene Secondary School | Boarding | Mixed |
| Mukuiru Mixed Day Boarding Secondary School | Boarding | Mixed |
| Mulathankari Girls High School | Boarding | Girls |
| Munithu Mixed Day Secondary School | Boarding | Mixed |
| Mutuati Secondary School | Boarding | Boys |
| Naari Secondary School | Boarding | Girls |
| Naathu Secondary School | Boarding | Girls |
| Ndagene Secondary School | Boarding | Boys |
| Ngage Mixed Day Secondary School | Boarding | Mixed |
| Nkabune Girls Secondary School | Boarding | Girls |
| Nkando Secondary School | Boarding | Boys |
| Nthare Secondary School | Boarding | Mixed |
| Nthimbiri Secondary School | Boarding | Boys |
| Ntuene Secondary School | Boarding | Mixed |
| Nyagene Girls’ Secondary School | Boarding | Girls |
| Nyambene Girls’ Secondary School | Boarding | Girls |
| Ruiga Girls Secondary School | Boarding | Girls |
| Rumanthi Girls’ Seconary | Boarding | Girls |
| St Agnes-Gaukune Girls Secondary School | Boarding | Girls |
| St Angela’S Girls’ | Boarding | Girls |
| St. Bakhita Giaki Girls Secondary School | Boarding | Girls |
| St. Cyprian High School | Boarding | Mixed |
| St. Luke’S Secondary School | Boarding | Boys |
| St. Marys Mbaranga | Boarding | Mixed |
| St. Peter Nkuene Boys | Boarding | Boys |
| St. Ritas’ Amwamba Girls Secondary School | Boarding | Girls |
| St.Francis Of Assisi Secondary School – Muramba | Boarding | Mixed |
| Thitha Secondary School | Boarding | Mixed |
| Thuura Secondary School | Boarding | Boys |
| Ukuu High School | Boarding | Girls |
| Uringu Girls Secondary School | Boarding | Girls |
| Uruku Girls Secondary School | Boarding | Girls |