Gathiru Senior School (formerly called Gathiru Secondary School) is a C3 Public Boys Senior School that is physically located in Kiambu County, Gatundu South Sub County  in the Central Region of the  Republic of Kenya. This article provides all the details about Gathiru Senior School, including: the school’s cluster, level, UIC Code, Knec Code, Admissions and location.

This Boarding Senior School forms part of the Kiambu Education Network and has fully transitioned to a Senior School that offers Competency Based Education (CBE) Curriculum to Grade 10, 11 and 12 Learners.

Gathiru Senior School School’s Basic Data and National Information.

School’s Old Name	Gathiru Secondary School
School’s New Name	Gathiru Senior School
Cluster	C3
Gender	Boys
Accomodation Type	Boarding
Region	Central
County	Kiambu
Sub County	Gatundu South
UIC Code	74WJ
KNEC Code	11212115
Type of School	Public
Regular or SNE	Regular
Disability Type	None

Gathiru Senior School operates as a fully Senior School offering the Competency Based Education (CBE/CBC) Curriculum. Students transition to this school from Junior School after sitting for the Kenya Junior School Education Assessment (KJSEA); which is a national assessment for Grade 9 learners under the Competency-Based Curriculum (CBC/ CBE). It assesses students in nine learning areas to evaluate their readiness to transition into Senior School.

Students who join Gathiru Senior School at grade 10 specialize in any one of the following three main CBE pathways:

1. STEM (Science, Technology, Engineering, and Mathematics): Focuses on innovators and problem-solvers. It branches into Pure Sciences, Applied Sciences, and Technical Studies, leading to careers like medicine, engineering, and IT. 
2. Social Sciences: Designed for communicators and leaders. It includes tracks in Languages, Literature, Humanities, and Business Studies, preparing students for fields like law, journalism, and education. 
3. Arts & Sports Science: For creative minds and athletes. It features tracks in Visual Arts, Performing Arts, Music, and various sports disciplines, fostering careers in the creative and sports industries.

Gathiru Senior School’s Background and History.

Gathiru Senior School, historically known as Gathiru Secondary School, has played a very key role in the Kenyan Education Sector and more particularly in Kiambu county; where it is domiciled.

The school has grown over the years and is now a fully recognized  C3 Public Senior School. In January 2026, Gathiru Senior School admitted the first grade 10 learners under the CBE Curriculum.

Location of Gathiru Senior School.

Gathiru Senior School’s exact physical location is in Kiambu County, Gatundu South in the Central Region of the  Republic of Kenya.

What to know about Central Region’s Senior Schools.

Central is the home of some of the best and highly competitive Senior Schools in Kenya. Gathiru Senior School, just like other Senior schools in the region, favourably compete in co-curricular activities, academics and Infrastructural development. Before joining  Gathiru Senior School, confirm the pathways it offers.

Frequently Asked Questions About Gathiru Senior School.

1. What is the UIC Code for Gathiru Senior School?

The UIC Code for Gathiru Senior School is 74WJ.

2. Is Gathiru Senior School a Boarding or Day School?

Gathiru Senior School is a Boarding Senior School.

3. What CBE Grades are taught at Gathiru Senior School?

Gathiru Senior School offers CBE Senior Schools Grades at Grade 10, 11 and 12.

4. What is the Knec Code for Gathiru Senior School?

The Official Knec Code for Gathiru Senior School is 11212115.

5. In Which County is Gathiru Senior School Found?

Gathiru Senior School is located in Kiambu County.

6. Does Gathiru Senior School admit Boys, Girls or Both?

Gathiru Senior School is a Boys Senior School.

7. What was Gathiru Senior School’s Fomer Name under the 8-4-4 Education System?

Gathiru Senior School was formerly called Gathiru Secondary School.

8. What is Gathiru Senior School’s New Cluster?

Gathiru Senior School is now classified as a C3 Senior School.

9. Is there SNE Support for Learners at Gathiru Senior School?

Gathiru Senior School offers support for Regular learners. The school’s Disability Type is None.

10. Where is Gathiru Senior School Located?

Gathiru Senior School is found in Gatundu South Subcounty of Kiambu County; in the Central Region of the Republic of Kenya.

11. Is a Gathiru Senior School Private or Public School?

Gathiru Senior School is a Public School.

12. What CBE Pathways are offered at Senior School?

Senior schools offere 3 pathways; STEM, Social Sciences and Arts and Sports.