| Abc Kiatineni | Boarding | Mixed |
| Abc Maiani Boys High School | Boarding | Boys |
| Ack St. Thomas Kithingii’Syo | Boarding | Mixed |
| Aic Mavindini Boys Secondary School | Boarding | Boys |
| Aic Mwaani-Ilima Secondary School | Boarding | Mixed |
| Darajani Secondary School | Boarding | Boys |
| Enguli Abc Secondary School | Boarding | Mixed |
| Gigiri Lions Girls’ Secondary School | Boarding | Girls |
| Gigiri Nzeeni Lions Boys Secondary School | Boarding | Boys |
| Good Shepherd Girls Secondary School | Boarding | Girls |
| Imale | Boarding | Boys |
| Inyokoni Secondary School | Boarding | Mixed |
| Itetani Boys | Boarding | Boys |
| Joanna Chase Secondary School | Boarding | Mixed |
| Kalawa Girls’ Secondary School | Boarding | Girls |
| Kasikeu Girls High School | Boarding | Girls |
| Kasikeu Secondary School | Boarding | Boys |
| Kasue Girls’ Secondary School | Boarding | Girls |
| Kathonzweni Girls Secondary School | Boarding | Girls |
| Kathyaka Secondary School | Boarding | Mixed |
| Kikima | Boarding | Mixed |
| Kikumini Secondary School | Boarding | Boys |
| Kilungu Boys High School | Boarding | Boys |
| Kisayani Secondary School | Boarding | Mixed |
| Kitaingo Boys’ Secondary School | Boarding | Boys |
| Kiteta Boys Secondary School | Boarding | Boys |
| Kiteta Girls Secondary School | Boarding | Girls |
| Kithyululu Secondary School | Boarding | Mixed |
| Kivuthini Secondary School | Boarding | Mixed |
| Kyanginywa High School | Boarding | Mixed |
| Makindu Girls Secondary School | Boarding | Girls |
| Mbiini Secondary School | Boarding | Mixed |
| Mbooni Aic Girls | Boarding | Girls |
| Mt. Carmel Girls’ Secondary School – Kilome | Boarding | Girls |
| Mukaa Girls’ High School | Boarding | Girls |
| Mulala Girls’ High School | Boarding | Girls |
| Mulooni | Boarding | Mixed |
| Mutanda Girls Secondary School | Boarding | Girls |
| Muthingiini High School | Boarding | Boys |
| Ndolo Secondary School | Boarding | Boys |
| Nduluku Secondary School | Boarding | Boys |
| Nduluni Secondary School | Boarding | Mixed |
| Nguumo Girls Secondary School | Boarding | Girls |
| Nzeveni | Boarding | Mixed |
| Shine Star Kai Secondary School | Boarding | Mixed |
| St . Angela Merici Ititu Girls Secondary School | Boarding | Girls |
| St John’S Malivani Secondary School | Boarding | Mixed |
| St Peter Claver’S Secondary School-Kithuki | Boarding | Boys |
| St. Albertina Kiongwani Girls High School | Boarding | Girls |
| St. Andrian Kiongwani Boys’ High School | Boarding | Boys |
| St. Anns Kiboko Secondary School | Boarding | Girls |
| St. Bakhita Girls-Kiangini | Boarding | Girls |
| St. Jude Girls Secondary School | Boarding | Girls |
| St. Lawrence’S Nziu Girls | Boarding | Girls |
| St. Mary’S Girls High School Kinyambu | Boarding | Girls |
| St. Mary’S Komboyoo Girls Secondary | Boarding | Girls |
| St. Patrick’S Kako Secondary School | Boarding | Mixed |
| St. Paul’S Kyamuthei Secondary School | Boarding | Boys |
| St.Lucia Girls’ High School- Kauti | Boarding | Girls |
| Sumbi Secondary School | Boarding | Mixed |
| Utangwa Girls | Boarding | Girls |
| Utangwa High | Boarding | Mixed |
| Utini Girls Secondary School | Boarding | Girls |
| Utithi Secondary School | Boarding | Mixed |