| Name of School | Total enrolment | Type of School | Status of School | Name of County | Name of Sub County |
| GATITU HIGH SCHOOL | 316 | Mixed Boarding | Sub County | Kiambu | GATUNDU |
| Immaculate Heart of mary kairi girls | 285 | Boarding Girls | Sub County | Kiambu | Gatundu North |
| Kamwirigi secondary school | 201 | Day | Sub County | Kiambu | Gatundu North |
| ST STEPHEN NDIKO SECONDARY SCHOOL | 210 | Day | Sub County | Kiambu | GATUNDU NORTH |
| kairi secondary school | 803 | Boarding Boys | County | Kiambu | Gatundu North |
| Kiangunu Secondary School | 593 | Mixed Boarding | Sub County | Kiambu | Gatundu North |
| Kaibere secondary | 66 | Day | Sub County | Kiambu | Gatundu north |
| St joseph the worker | 582 | Day | Sub County | Kiambu | Gatundu North |
| mutuma sec school | 516 | Day | Sub County | Kiambu | Gatundu north |
| OUR LADY OF FATIMA KIRIKO GIRLS SECONDARY SCHOOL | 553 | Boarding Girls | County | Kiambu | GATUNDU NORTH |
| Igegania Secondary school | 372 | Mixed Day | Sub County | Kiambu | Gatundu North |
| Maria ini mixed day secondary school | 227 | Girls boarding mixed day | Sub County | Kiambu | Gatundu North |
| MBICHI SEC. SCHOOL | 153 | Day | Sub County | Kiambu | GATUNDU NORTH |
| Makwa Boys sec | 760 | Boarding Boys | County | Kiambu | Gatundu North |
| P.C.E.A MUKUYU-INI | 200 | Day | Sub County | Kiambu | GATUNDU NORTH |
| Njahi secondary school | 379 | Mixed Boarding | Sub County | Kiambu | Gatundu north |
| Gakoe mixed secondary school | 245 | Day | Sub County | Kiambu | Gatundu North |
| Ngethu Secondary School | 290 | Boarding gilrs/ mixed day | Sub County | Kiambu | Gatundu North |
| Holy kamwangi sec school | 130 | Day | Sub County | Kiambu | Gatundu North |
| Gatei Sec sch | 202 | Day | Sub County | Kiambu | Gatundu North |
| Gacege secondary school | 311 | Mixed day secondary school | Sub County | Kiambu | Gatundu North |
| Kiriko Mixed Day Sec | 140 | Day | Sub County | Kiambu | Gatundu North |
| Mitero sec school | 162 | Day | Sub County | Kiambu | Gatundu north |
| Kanjuku secondary School | 335 | Day | Sub County | Kiambu | Gatundu North |
| Gikindu secondary school | 645 | Boarding Girls | County | Kiambu | Gatundu North |
| Rumwe sec | 212 | Day | Sub County | Kiambu | Gatundu north |
| Dt Francis girls Mangu | 1200 | Boarding Girls | Extra County | Kiambu | Gatundu North |
| Mukurwe secondary | 190 | Day | Sub County | Kiambu | Gatundu north |
| Nyamangara sec | 320 | Day | Sub County | Kiambu | Gatundu north |
| Gakoe Girls | 553 | Boarding Girls | County | Kiambu | Gatundu North |
| Ndekei secondary school | 530 | Day | Sub County | Kiambu | Gatundu North |
| Iruri secondary school | 245 | Day | Sub County | Kiambu | Gatundu NORTH |
| Gatunguru boys high school | 420 | Boarding Boys | County | Kiambu | Gatundu north |
| Mwea secondary school | 219 | Day | Sub County | Kiambu | Gatundu north |
| Nyamathumbi secondary school | 354 | Day | Sub County | Kiambu | Gatundu North |
| St.peter Barigitu sec. | 69 | Day | Sub County | Kiambu | Gatundu North. |
| Ituru high school | 895 | Boarding Boys | County | Kiambu | Gatundu south |
| KAMUTUA SECONDARY SCHOOL | 272 | Mixed Boarding | Sub County | Kiambu | Gatundu south |
| Icaciri secondary school | 435 | Boarding Girls | County | Kiambu | Gatundu south |
| St Clare girls Gatitu | 459 | Boarding Girls | County | Kiambu | Gatundu south |
| NDUNDU HIGH SCHOOL | 288 | Mixed Boarding | Sub County | Kiambu | GATUNDU SOUTH |
| Kibiru Girls | 515 | Boarding Girls | County | Kiambu | Gatundu South |
| Mutunguru girls secondary | 408 | Boarding Girls | County | Kiambu | Gatundu south |
| Gathiru high school | 300 | Boarding Boys | County | Kiambu | Gatundu south |
| Gathuri secondary | 236 | Boarding Boys | Sub County | Kiambu | Gatundu south |
| Gikure secondary | 592 | Mixed Boarding | Sub County | Kiambu | Gatundu South |
| Muthurumbi secondary | 215 | Day | Sub County | Kiambu | Gatundu south |
| Wamwangi Secondary school | 561 | Day | Sub County | Kiambu | Gatundu South |
| Ikuma | 300 | Day | Sub County | Kiambu | Gatundu south |
| Kiganjo secondary school | 167 | Day | Sub County | Kiambu | Gatundu south |
| QUEEN OF PEACE NEMBU GIRLS | 580 | Mixed Boarding | County | Kiambu | Gatundu south |
| Kiamworia girls sec | 549 | Boarding Girls | County | Kiambu | Gatundu south |
| Gitare secondary school | 175 | Boarding Boys | Sub County | Kiambu | Gatundu South |
| Kahuguini secondary school | 710 | Boarding Boys | County | Kiambu | Gatundu South |
| Gachika sec sch | 360 | Mixed Boarding | Sub County | Kiambu | Gatundu south |
| GITHUYA SECONDARY SCHOOL | 141 | Day | Sub County | Kiambu | GATUNDU SOUTH |
| Kiamwangi secondary | 483 | Mixed day, boys boarding | Sub County | Kiambu | Gatundu south |
| Gachoka Secondary school | 472 | Mixed day | Sub County | Kiambu | Gatundu south |
| Muthiga Girls High School | 673 | Boarding Girls | County | Kiambu | Gatundu South |
| Ng’enda sec | 484 | Mixed Day/Boarding | Sub County | Kiambu | Gatundu south |
| Karinga Girls high school | 536 | Boarding Girls | County | Kiambu | Gatundu South |
| MUNYU-INI SEC SCHOOL | 350 | Day | Sub County | Kiambu | GATUNDU SOUTH. |
| GATHIRU-INI BOYS | 740 | Boarding Boys | County | Kiambu | GITHUNGURI |
| Gathaithi sec school | 240 | Day | Sub County | Kiambu | Githunguri |
| Thuita sec.school | 161 | Day | Sub County | Kiambu | Githunguri |
| St. Vincent Lioki secondary | 390 | Mixed day | Sub County | Kiambu | Githunguri |
| PCEA karia sec school | 182 | Day | Sub County | Kiambu | Githunguri |
| Githunguri technical and secondary school | 405 | Day | Sub County | Kiambu | Githunguri |
| Kanjai Secondary School | 271 | Day | Sub County | Kiambu | Githunguri |
| Kiawairia secondary school | 202 | Day | Sub County | Kiambu | Githunguri |
| Gikang’a Kagece Secondary School | 506 | Day | Sub County | Kiambu | Githunguri |
| Miiri secondary | 198 | Day | Sub County | Kiambu | Githunguri |
| Pcea mitahato | 209 | Day | Sub County | Kiambu | Githunguri |
| St. Joseph’s Githunguri | 1190 | Boarding Boys | Extra County | Kiambu | Githunguri |
| Ndireti secondary school | 98 | Day | Sub County | Kiambu | Githunguri |
| Mukua secondary school | 237 | Girls boarding and day mixed | Sub County | Kiambu | Githunguri |
| Kahunira secondary. | 520 | Day | Sub County | Kiambu | Githunguri |
| Githiga boys high school | 1100 | Boarding Boys | Extra County | Kiambu | GITHUNGURI |
| GITIHA SEC. SCHOOL | 215 | Day | Sub County | Kiambu | GITHUNGURI |
| Miguta secondary | 250 | Day | Sub County | Kiambu | Githunguri |
| Kiairia Secondary School | 210 | Day | Sub County | Kiambu | Githunguri |
| Matuguta sec school | 363 | Day | Sub County | Kiambu | Githunguri |
| KOMOTHAI BOYS HIGH SCHOOL | 795 | Boarding Boys | County | Kiambu | GITHUNGURI |
| Kamondo sec school | 406 | Day | Sub County | Kiambu | Githunguri |
| Kambui girls high school | 815 | Boarding Girls | County | Kiambu | Githunguri |
| Gitwe girls | 860 | Boarding Girls | County | Kiambu | Githunguri |
| Kagema Secondary School | 340 | Day | Sub County | Kiambu | GITHUNGURI |
| WILLIAM NG’IRU GITAU SEC. SCHOOL | 600 | Day | Sub County | Kiambu | GITHUNGURI |
| GATHIRIMU GIRLS TECH HIGH SCHOOL | 1088 | Boarding Girls | County | Kiambu | GITHUNGURI |
| KOMOTHAI GIRLS TECH HIGH SCHOOL | 870 | Boarding Girls | County | Kiambu | GITHUNGURI |
| Theta Secondary School | 456 | Day | Sub County | Kiambu | Juja |
| Murera sec school | 974 | Day | Sub County | Kiambu | Juja |
| GACHORORO MIXED SECONDARY SCHOOL | 627 | Mixed day | Sub County | Kiambu | Juja |
| Kitamaiyu sec sch | 205 | Day | Sub County | Kiambu | Juja |
| Blessed Mugutha sec | 412 | Mixed day | Sub County | Kiambu | Juja |
| ST.FRANCIS NYACABA SEC SCHOOL | 574 | Day | Sub County | Kiambu | Juja |
| Ndururumo Sec School | 171 | Day | Sub County | Kiambu | Juja |
| Mangu high school | 1924 | Boarding Boys | National | Kiambu | Juja |
| Juja Farm secondary school | 519 | Day | Sub County | Kiambu | Juja |
| Kibiku High School | 150 | Day | Sub County | Kiambu | Kabete |
| Kabete High school | 403 | Day and boarding for boys | County | Kiambu | Kabete |
| Gathiga sec | 319 | Day | Sub County | Kiambu | Kabete |
| Muguga wagatonye sec | 602 | Day | Sub County | Kiambu | Kabete |
| Rungiri secondary school | 1171 | Day | Sub County | Kiambu | Kabete |
| Kanyariri High School | 372 | Day | Sub County | Kiambu | kabete |
| Kirangari high school | 877 | Boarding Boys | County | Kiambu | Kabete |
| Cura secondary school | 185 | Day | Sub County | Kiambu | Kabete |
| Kahuho Uhuru High School | 830 | Boarding Boys | County | Kiambu | Kabete |
| Uthiru girls | 762 | Boarding Girls | County | Kiambu | Kabete |
| KANJERU GIRLS HIGH SCHOOL | 400 | Day | County | Kiambu | KABETE |
| THIMBIGUA SECONDARY SCHOOL | 362 | Day | Sub County | Kiambu | KIAMBAA |
| Senior Chief Koinange Girls High school | 1478 | Boarding Girls | Extra County | Kiambu | Kiambaa |
| Gacharage high sch | 323 | Day | Sub County | Kiambu | Kiambaa |
| Muongoiya Secondary | 647 | Day | Sub County | Kiambu | Kiambaa |
| St. Joseph High School___Gathanga | 284 | Day | Sub County | Kiambu | Kiambaa |
| Muchatha high school | 195 | Day | Sub County | Kiambu | Kiambaa |
| ACK KARURA SEC school | 429 | Day | Sub County | Kiambu | Kiambaa |
| Muthurwa girls sec school.kiambaa | 830 | Boarding Girls | Extra County | Kiambu | Kiambaa |
| St Andrews Ndenderu Sec School | 321 | Mixed day school | Sub County | Kiambu | Kiambaa |
| St Angelas Girls High school Karura | 746 | Boarding Girls | County | Kiambu | Kiambaa |
| Cianda high school | 459 | Day | Sub County | Kiambu | Kiambaa |
| kihara secondary school | 637 | Day | Sub County | Kiambu | kiambaa |
| KIAMBURURU SECONDARY SCHOOL | 223 | Mixed day boys boarding | Sub County | Kiambu | KIAMBU |
| Kasarini Secondary Sch | 352 | Day | Sub County | Kiambu | Kiambu |
| STS. ANN AND JOAKIM SECONDARY SCHOOL – KANGOYA | 168 | Day | Sub County | Kiambu | KIAMBU |
| ACK Kiu River Secondary | 330 | Day | Sub County | Kiambu | Kiambu |
| HGM TING’ANG’A SECONDARY SCHOOL | 307 | Day | Sub County | Kiambu | KIAMBU |
| Kiambu Township Secondary school | 553 | Day | Sub County | Kiambu | Kiambu |
| Loreto Kiambu Girls High School | 1348 | Boarding Girls | Extra County | Kiambu | Kiambu |
| St Annes Lioki | 893 | Boarding Girls | Extra County | Kiambu | Kiambu |
| Riara secondary school | 590 | Day | Sub County | Kiambu | Kiambu |
| Kiambu high school | 1408 | Boarding Boys | Extra County | Kiambu | Kiambu |
| Loreto Kiambu girls high school | 1348 | Boarding Girls | Extra County | Kiambu | Kiambu |
| St. Joseph Riabai Secondary School | 340 | Day | Sub County | Kiambu | Kiambu |
| Ndumberi Girls Secondary school | 665 | Boarding Girls | Extra County | Kiambu | Kiambu |
| Riabai High School | 424 | Boarding Boys | County | Kiambu | Kiambu |
| St Peter’s High school Ndumberi | 398 | Day | Sub County | Kiambu | Kiambu |
| Ting’ang’a secondary school | 562 | Day | Sub County | Kiambu | Kiambu municipality |
| MAMA NGINA SENIOR HIGH SCHOOL | 361 | Day | Sub County | Kiambu | KIKUYU |
| Alliance Girls High School | 1943 | Boarding Girls | National | Kiambu | Kikuyu |
| Kerwasecondaryschool | 412 | Day | Sub County | Kiambu | Kikuyu |
| Kikuyu boys high school | 400 | Boarding Boys | County | Kiambu | Kikuyu |
| P.C.E.A KARAI MIXED SECONDARY | 548 | Mixed Boarding | Sub County | Kiambu | Kikuyu |
| Muhu secondary | 489 | Mixed Boarding | Sub County | Kiambu | Kikuyu |
| Nachu secondary | 200 | Day | Sub County | Kiambu | Kikuyu |
| Musa Gitau sec sch | 718 | Boarding Boys | County | Kiambu | kikuyu |
| Fr kevin kelly | 289 | Day | Sub County | Kiambu | Kikuyu |
| RENGUTI HIGH SCHOOL | 258 | Mixed Boarding | Sub County | Kiambu | KIKUYU |
| Nderi Sec school | 231 | Day | Sub County | Kiambu | Kikuyu |
| Moi girl’s kamangu | 756 | Boarding Girls | County | Kiambu | Kikuyu |
| Alliance high school | 1762 | Boarding Boys | National | Kiambu | Kikuyu |
| PCEA Mai-a-ihii High School | 273 | Day | Sub County | Kiambu | Kikuyu |
| Kambaa Girls | 851 | Boarding Girls | County | Kiambu | Lari |
| Kambaa Girls High School | 851 | Boarding Girls | County | Kiambu | Lari |
| GATHAITI SECONDARY | 156 | Day | Sub County | Kiambu | LARI |
| Gachema High School | 100 | Day | Sub County | Kiambu | Lari |
| King’atua secondary school | 185 | Boys Boarding and Mixed Day | Sub County | Kiambu | Lari |
| Kirenga boys high school | 430 | Day | Sub County | Kiambu | Lari |
| Kinale Girls | 547 | Boarding Girls | County | Kiambu | Lari |
| Juvenalis Gitau Secondary School | 134 | Mixed Boarding | Sub County | Kiambu | Lari |
| ST AUGUSTINE NYANDUMA HIGH SCHOOL | 366 | Day | Sub County | Kiambu | LARI |
| Gachoire Girls Sec | 1005 | Boarding Girls | County | Kiambu | Lari |
| Mbauini Secondary Sch | 250 | Day | Sub County | Kiambu | Lari |
| KAMUCHEGE SECONDARY SCHOOL | 156 | Day | Sub County | Kiambu | LARI |
| Kagaa High school | 200 | Mixed Day + Boys Boarding | Sub County | Kiambu | Lari |
| Ragia Forest Sec | 144 | Day | Sub County | Kiambu | Lari |
| NDURIRI SECONDARY SCHOOL | 103 | Day | Sub County | Kiambu | LARI |
| KARATINA TECHNICAL AND SECONDARY SCHOOL | 79 | Day | Sub County | Kiambu | LARI |
| Gitithia girls | 550 | Day and boarding for girls | Sub County | Kiambu | Lari |
| Utugi sec | 468 | Day | Sub County | Kiambu | Lari |
| Kijabe Girls | 1000 | Boarding Girls | Extra County | Kiambu | Lari |
| St Patrick’s sec Nyanduma | 145 | Mixed day, boys boarding | Sub County | Kiambu | Lari |
| KAMBURU HIGH SCHOOL | 91 | Day | Sub County | Kiambu | LARI |
| Kariguini secondary school-lari | 104 | Day | Sub County | Kiambu | Lari |
| MUGIKO SECONDARY SCHOOL | 655 | Day | Sub County | Kiambu | LARI |
| LARI BOYS’ SECONDARY SCHOOL | 813 | Boarding Boys | County | Kiambu | Lari |
| DN Kiburi Sulmac secondary | 257 | Mixed Day | Sub County | Kiambu | Lari |
| Gachema High School | 90 | Day | Sub County | Kiambu | Lari |
| GATHIMA SECONDARY SCHOOL | 160 | Day | Sub County | Kiambu | LARI |
| Kirenga girls | 371 | Day | Sub County | Kiambu | Lari |
| Magina secondary school | 340 | Day | Sub County | Kiambu | Lari |
| Gatamaiyu High School | 519 | Boarding Boys | County | Kiambu | Lari |
| Gitithia mixed secondary school | 893 | Mixed Day | Sub County | Kiambu | Lari |
| Manguo Secondary school | 368 | Day | Sub County | Kiambu | Limuru |
| OLM Ngarariga girls’ | 826 | Day/Boarding girls’ | County | Kiambu | Limuru |
| Nyanjega Secondary School | 119 | Day | Sub County | Kiambu | Limuru |
| Tigoni secondary school | 420 | Mixed | Sub County | Kiambu | Limuru |
| Rironi secondary | 330 | Day | Sub County | Kiambu | Limuru |
| Loreto High School..Limuru | 1400 | Boarding Girls | National | Kiambu | Limuru |
| Ngecha Girls High Schoo | 285 | Day | Sub County | Kiambu | Limuru |
| GICHURU HIGH SCHOOL | 359 | Day | Sub County | Kiambu | LIMURU |
| Limuru Girls School | 1546 | Boarding Girls | National | Kiambu | Limuru |
| Nguirubi mixed Secondary School | 336 | Day | Sub County | Kiambu | Limuru |
| Mukoma Secondary school | 88 | Day | Sub County | Kiambu | Limuru |
| KINYOGORI HIGH SCHOOL | 780 | Day | Sub County | Kiambu | LIMURU |
| Kamirithu sec school | 356 | Day | Sub County | Kiambu | Limuru |
| Kamandura Girls | 817 | Boarding Girls | County | Kiambu | Limuru |
| Magogoni community school | 424 | Day | Sub County | Kiambu | Thika East |
| Komo secondary school | 320 | Day | Sub County | Kiambu | Thika east |
| Munyu Mixed Day Sec School | 386 | Day | Sub County | Kiambu | Thika East |
| Ngoliba secondary school | 400 | Day | County | Kiambu | Thika East |
| Munyu girls high school | 412 | Boarding Girls | County | Kiambu | Thika East |
| NDULA SECONDARY SCHOOL | 251 | Day | Sub County | Kiambu | THIKA EAST |
| Gatuanyaga mixed day secondary school | 431 | Day | Sub County | Kiambu | Thika east |
| St.Pauls Gatuanyaga Secondary school | 534 | Boarding Boys | County | Kiambu | Thika East |
| Thika Girls Karibaribi | 735 | Boarding Girls | County | Kiambu | Thika West |
| Thika High school | 1561 | Boarding Boys | Extra County | Kiambu | Thika West |
| Kimuchu Mixed Secondary | 936 | Day | Sub County | Kiambu | Thika West |
| Broadway High School | 1106 | Day | Sub County | Kiambu | Thika West |
| Karibaribi secondary school | 380 | Day | Sub County | Kiambu | Thika west |
| QUEEN OF ROSARY MIXED SECONDARY | 423 | MIXED DAY | Sub County | Kiambu | THIKA WEST |
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