There are about fifty three (53) County secondary schools in Kiambu County. These schools are either Mixed or Single.County schools are the third best schools after National and Extra County schools.
Thika girls, Muthiga, karinga and Kahuho are among the best County schools in Kiambu.
The County schools admit students majorly from within the County. Admission of form ones is via the Education Ministry’s Portal. Calling letters to these schools are downloaded from the Ministry’s website; http://www.education.go.ke/
FOR A COMPLETE GUIDE TO ALL SCHOOLS IN KENYA CLICK ON THE LINK BELOW;
Here are links to the most important news portals:
- KUCCPS News Portal
- TSC News Portal
- Universities and Colleges News Portal
- Helb News Portal
- KNEC News Portal
- KSSSA News Portal
- Schools News Portal
- Free Teaching Resources and Revision Materials
Here is a list of all the County schools in Kiambu County:
| School Code | School Name | Category | Type | County |
| 11205206 | RIABAI HIGH SCHOOL | County | Boys | Kiambu |
| 11207125 | THIKA GIRLS KARIBARIBI SECONDARY SCHOOL | County | Girls | Kiambu |
| 11211301 | NGENIA HIGH SCHOOL | County | Boys | Kiambu |
| 11211303 | NGARARIGA GIRLS SECONDARY SCHOOL | County | Girls | Kiambu |
| 11211305 | THIGIO BOYS SECONDARY SCHOOL | County | Boys | Kiambu |
| 11211307 | MIRITHU SECONDARY SCHOOL | County | Girls | Kiambu |
| 11211308 | ST. MARY’S GIRLS – THIGIO | County | Girls | Kiambu |
| 11211313 | KAMANDURA GIRLS HIGH SCHOOL | County | Girls | Kiambu |
| 11212102 | ITURU HIGH SCHOOL | County | Boys | Kiambu |
| 11212103 | MURURIA SECONDARY SCHOOL | County | Boys | Kiambu |
| 11212104 | KAHUGUINI SECONDARY SCHOOL | County | Mixed | Kiambu |
| 11212105 | GATITU SECONDARY SCHOOL | County | Girls | Kiambu |
| 11212106 | KARINGA GIRLS’ HIGH SCHOOL | County | Girls | Kiambu |
| 11212108 | KIMUNYU SECONDARY SCHOOL | County | Boys | Kiambu |
| 11212109 | ICACIRI SECONDARY SCHOOL | County | Mixed | Kiambu |
| 11212110 | KIBIRU SECONDARY SCHOOL | County | Girls | Kiambu |
| 11212114 | MUTHIGA GIRLS’ SECONDARY SCHOOL | County | Girls | Kiambu |
| 11212115 | GATHIRU SECONDARY SCHOOL | County | Mixed | Kiambu |
| 11212117 | UCEKEINI SECONDARY SCHOOL | County | Girls | Kiambu |
| 11212118 | QUEEN OF PEACE NEMBU SECONDARY SCHOOL | County | Mixed | Kiambu |
| 11212121 | MUTUNGURU SECONDARY SCHOOL | County | Mixed | Kiambu |
| 11212123 | GATHURI SECONDARY SCHOOL | County | Mixed | Kiambu |
| 11212128 | KIAMWORIA SECONDARY SCHOOL | County | Mixed | Kiambu |
| 11230202 | MOI GIRLS SECONDARY SCHOOL KAMANGU | County | Girls | Kiambu |
| 11230315 | KIKUYU BOYS HIGH SCHOOL | County | Boys | Kiambu |
| 11230401 | KIKUYU DAY SECONDARY SCHOOL | County | Boys | Kiambu |
| 11230406 | MUSA GITAU SECONDARY SCHOOL | County | Girls | Kiambu |
| 11231101 | GATAMAIYU BOYS HIGH SCHOOL | County | Boys | Kiambu |
| 11231104 | GACHOIRE SECONDARY SCHOOL | County | Girls | Kiambu |
| 11231201 | LARI BOYS SECONDARY SCHOOL | County | Boys | Kiambu |
| 11231203 | KAMBAA GIRL’S HIGH SCHOOL | County | Girls | Kiambu |
| 11231204 | KINALE GIRLS HIGH SCHOOL | County | Girls | Kiambu |
| 11232101 | KAMBUI GIRLS’ HIGH SCHOOL | County | Girls | Kiambu |
| 11232104 | GATHIRIMU GIRLS TECHNICAL HIGH SCHOOL | County | Girls | Kiambu |
| 11232107 | GITWE GIRLS SECONDARY SCHOOL | County | Girls | Kiambu |
| 11232301 | KOMOTHAI BOYS HIGH SCHOOL | County | Boys | Kiambu |
| 11232302 | GATHIRU-INI SECONDARY SCHOOL | County | Boys | Kiambu |
| 11232303 | J G KIEREINI SECONDARY SCHOOL | County | Boys | Kiambu |
| 11232304 | KOMOTHAI GIRL’S TECHNICAL SCHOOL | County | Girls | Kiambu |
| 11233301 | MUNYU GIRLS HIGH SCHOOL | County | Girls | Kiambu |
| 11233302 | NGOLIBA SECONDARY SCHOOL | County | Mixed | Kiambu |
| 11233303 | ST. PAUL’S GATUANYAGA SECONDARY SCHOOL | County | Boys | Kiambu |
| 11236102 | KAIRI SECONDARY SCHOOL | County | Boys | Kiambu |
| 11236105 | GAKOE HIGH SCHOOL | County | Girls | Kiambu |
| 11236106 | OUR LADY OF FATIMA KIRIKO GIRLS SECONDARY SCHOOL | County | Girls | Kiambu |
| 11236111 | GATUNGURU SECONDARY SCHOOL | County | Boys | Kiambu |
| 11236116 | GIKINDU SECONDARY SCHOOL | County | Girls | Kiambu |
| 11236119 | MAKWA SECONDARY SCHOOL | County | Boys | Kiambu |
| 11240110 | ST. ANGELAS GIRLS HIGH SCHOOL KARURA | County | Girls | Kiambu |
| 11241002 | KIRANGARI HIGH SCHOOL | County | Boys | Kiambu |
| 11241012 | KAHUHO UHURU HIGH SCHOOL | County | Boys | Kiambu |
| 11241014 | KANJERU GIRLS’ HIGH SHOOL | County | Girls | Kiambu |
| 11241015 | UTHIRU GIRLS HIGH SCHOOL | County | Girls | Kiambu |