- ACK Nyathuna Secondary School – Mixed Boarding
- Broadway Secondary School – Mixed Day
- Chania Boys’ High School – Boys Boarding
- Chania Girls’ High School – Girls Boarding
- Cianda High School – Mixed Day
- Gacece Secondary School – Mixed Day
- Gacharage High School – Mixed Day
- Gachie High School – Mixed Day
- Gachika Secondary School – Mixed Day
- Gachororo Secondary School – Mixed Day
- Gakoe High School – Girls Boarding
- Gatamaiyu High School – Boys Boarding
- Gathaithi Secondary School – Mixed Day
- Gathiga Secondary School – Mixed Boarding
- Gathiru Secondary School – Mixed Day & Boarding
- Gathugu Secondary School – Mixed Day
- Gathuri Secondary School – Mixed Day
- Gatitu Day Mixed Secondary School – Mixed Day
- Gatitu Secondary School – Girls Boarding
- Gatunguru Secondary School – Boys Boarding
- Gichuru High School – Mixed Day
- Gichuru Memorial High School – Mixed Boarding
- Gikang’a Kageche Secondary School – Mixed Day
- Gikindu Secondary School – Girls Boarding
- Gikure Secondary School – Mixed Day
- Gitare Secondary School – Mixed Day
- Githaruru Secondary School – Mixed Day
- Githiga High School – Boys Boarding
- Githima Secondary School – Mixed Day
- Githiruini Secondary School – Boys Boarding
- Githunguri High School – Mixed Boarding
- Githunguri Technical and Secondary – Mixed Day
- Githurai Mixed Secondary School – Mixed Boarding
- Gitiha Secondary School – Mixed Day
- Gititu Secondary School – Mixed Day & Boarding
- Handege Secondary School – Mixed Day
- Icaciri Secondary School – Mixed Day & Boarding
- Igegania Secondary School – Mixed Day
- IHM Kairi Girls Secondary School – Girls Day
- Ithanga Secondary School – Mixed Day & Boarding
- Ituru High School – Boys Boarding
- JG Kiereini Secondary School – Boys Boarding
- Juja Farm Secondary School – Mixed Day
- Juja Secondary School – Mixed Day
- Kabete High School – Mixed Day & Boarding
- Kagio Secondary School – Mixed Day
- Kagwe Girls Secondary School – Girls Boarding
- Kahuguini Secondary School – Mixed Day
- Kahuho Uhuru High School – Boys Boarding
- Kahunira Secondary – Mixed Day
- Kairi Rumwe High School – Mixed Day
- Kairi Secondary School – Boys Boarding
- Kamandura Girls High School – Girls Day & Boarding
- Kamondo Secondary School – Mixed Day
- Kamutua Secondary School – Mixed Day
- Kamwirigi Secondary School – Mixed Day
- Kanjai Secondary School – Mixed Day
- Kanjeru Girls’ High School – Girls Boarding
- Kanjuku Secondary School – Mixed Day
- Kanunga High School – Boys Boarding
- Kanyariri High School – Mixed Day & Boarding
- Karai Mixed Day Secondary School – Mixed Boarding
- Karibaribi Secondary School – Mixed Day
- Karinga Girls’ High School – Girls Boarding
- Karuri High School – Mixed Day
- Kenyatta Secondary School – Girls Day
- Kerwa Secondary School – Mixed Boarding
- Kiambu High School – Boys Boarding
- Kiambu Township Secondary School – Mixed Day
- Kiambururu Secondary School – Mixed Day
- Kiamwangi Secondary School – Mixed Day
- Kiamworia Secondary School – Mixed Day
- Kiangunu Secondary School – Mixed Day & Boarding
- Kibichiku Secondary School – Mixed Boarding
- Kibiru Secondary School – Girls Boarding
- Kiganjo Secondary School – Mixed Day
- Kigumo Secondary School – Mixed Day
- Kihara Secondary School – Mixed Day
- Kikuyu Day Secondary School – Boys Boarding
- Kimuchu Secondary School – Mixed Day
- Kimunyu Secondary School – Boys Day & Boarding
- Kinyogori Secondary School – Mixed Day
- Kirangari High School – Boys Boarding
- Kiriko Secondary School – Girls Boarding
- Kitamaiyu Secondary School – Mixed Boarding
- Komo Secondary School – Mixed Day
- Komothai Boys High School – Boys Boarding
- Komothai Girl’s Technical School – Girls Boarding
- Kwihota Secondary School – Mixed Boarding
- Lioki Secondary School – Mixed Day
- Loreto Girls High School Kiambu – Girls Boarding
- Magogoni Community Secondary School – Mixed Day
- Makutano Secondary School – Mixed Day
- Makwa Secondary School – Mixed Day & Boarding
- Manguo Secondary School – Mixed Day
- Mariaini Secondary School – Mixed Day
- Mary Leakey Girls’ High School – Girls Boarding
- Mataara Secondary School – Mixed Day
- Matunda Secondary School – Mixed Day & Boarding
- Mbichi Secondary School – Mixed Day
- Mirithu Secondary School – Girls Boarding
- Moi Girls Secondary School Kamangu – Girls Boarding
- Muguga Wagatonye Secondary School – Mixed Boarding
- Muhoho High – Boys Boarding
- Muhu Secondary School – Mixed Boarding
- Mukoma High School – Mixed Day
- Mukurwe Secondary School – Mixed Day
- Mukuyu Secondary School – Mixed Day
- Munyu Girls Secondary School – Girls Boarding
- Munyu Mixed Day Secondary School – Mixed Day
- Munyuini Secondary School – Mixed Day
- Muongoiya Secondary School – Mixed Day
- Murera Secondary School – Mixed Boarding
- Mururia Secondary School – Boys Boarding
- Musa Gitau Secondary School – Mixed Boarding
- Muthiga Girls’ Secondary School – Girls Boarding
- Muthurumbi Secondary School – Mixed Day
- Muthurwa Secondary School – Girls Boarding
- Muti Secondary School – Mixed Day
- Mutuma Secondary School – Mixed Day
- Mutunguru Secondary School – Mixed Day
- Ndarugu Secondary School – Mixed Day
- Ndekei Secondary School – Mixed Day
- Nderi Secondary School – Mixed Boarding
- Ndireti Secondary – Mixed Day
- Ndumberi Girls Secondary School – Girls Boarding
- Ndundu Secondary School – Mixed Day
- Ndung’u Girls Secondary School – Girls Day
- Ndung’u Njenga Boys Secondary School – Boys Day
- Nembu Secondary – Mixed Day
- Ngarariga Girls Secondary School – Girls Day & Boarding
- Ngelelya Secondary School – Mixed Day
- Ngenda Secondary School – Mixed Day & Boarding
- Ngenia High School – Boys Day & Boarding
- Ngethu Secondary School – Mixed Day
- Ngoliba Secondary School – Mixed Day
- Nguirubi Secondary – Mixed Day
- Njahi Secondary School – Boys Boarding
- Nyamang’ara Secondary School – Mixed Day
- Nyamathumbi Secondary School – Mixed Day
- PCEA MaiaIhii High School – Mixed Boarding
- PCEA Mukuyuini Secondary School – Mixed Day
- Renguti High School – Mixed Boarding
- Riabai High School – Boys Boarding
- Riara Secondary School – Mixed Day
- Rironi Secondary School – Boys Day
- Ruburi Secondary School – Mixed Day
- Ruiru Girls High School – Girls Boarding
- Ruiru Secondary School – Boys Boarding
- Rungiri Secondary School – Mixed Day & Boarding
- Senior Chief Koinange High School – Girls Boarding
- Spinners Boys Secondary School – Mixed Boarding
- St Anne’s Secondary SchoolLioki – Girls Boarding
- St Elizabeth Orthodox High School – Mixed Boarding
- St Francis Girls High School (Mang’u) – Girls Boarding
- St Joseph High School – Gathanga – Mixed Day
- St Joseph the Worker Secondary School Mangu – Mixed Day
- St Kevin’s Secondary School – Mixed Boarding
- St Mary’s Girls – Thigio – Girls Boarding
- St Paul’s Gatuanyaga Secondary School – Boys Boarding
- St Stephe Ndiko Secondary School – Girls Day & Boarding
- St Teresa’s Secondary School – Mixed Day
- Thigio Boys Secondary School – Boys Day & Boarding
- Thika High School – Boys Boarding
- Thuita Secondary School – Mixed Day
- Tigoni Secondary School – Mixed Day
- Ting’ang’a Secondary School – Mixed Day
- Ucekeini Secondary School – Girls Boarding
- Uthiru Secondary School – Girls Boarding
- Wamwangi Secondary School – Mixed Day
- Wangunyu High School – Girls Boarding
- William Ng’iru Gitau Secondary School – Mixed Day
Gatundu South Kiamwangi, Kiganjo, Ndarugu, Ngenda, Gatundu North Gituamba, Githobokoni, Chania, Mang’u, Juja Murera, Theta, Juja, Witeithie, Kalimoni, Thika Town Township, Kamenu, Hospital, Gatuanyaga, Ngoliba, Ruiri Gitothua, Biashara, Gatongora, Kahawa Sukari, Kahawa Wendani, Kiuu, Mwiki, Mwihoko, Githunguri Githunguri, Githiga, Ikinu, Ngewa, Komothai, Kiambu Ting’gang’a, Ndumberi, Riabai, Township, Kiambaa Cianda, Karuiri, Ndenderu, Muchatha, Kihara
Kabete Gitaru, Muguga, Nyathuna, Kabete, Uthiru, Kikuya Karai, Nachu, Sigona, Kikuyu, Kinoo, Limuru Bibirioni, Limuru Central, Ndeiya, Limuru East, Ngecha Tigoni, Lari Kijabe, Nyanduma, Kamburu, Lari/Kirenga