Marimu Senior (formerly called Marimu Sec) is a C4 Public Mixed Senior School that is physically located in Nyandarua County, Wanjohi Sub County  in the Central Region of the  Republic of Kenya. This article provides all the details about Marimu Senior, including: the school’s cluster, level, UIC Code, Knec Code, Admissions and location.

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

Marimu Senior School’s Basic Data and National Information.

School’s Old Name	Marimu Sec
School’s New Name	Marimu Senior
Cluster	C4
Gender	Mixed
Accomodation Type	Day
Region	Central
County	Nyandarua
Sub County	Wanjohi
UIC Code	SW78
KNEC Code	07247218
Type of School	Public
Regular or SNE	Regular
Disability Type	None

Marimu Senior 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 Marimu Senior 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.

Marimu Senior’s Background and History.

Marimu Senior, historically known as Marimu Sec, has played a very key role in the Kenyan Education Sector and more particularly in Nyandarua county; where it is domiciled.

The school has grown over the years and is now a fully recognized  C4 Public Senior School. In January 2026, Marimu Senior admitted the first grade 10 learners under the CBE Curriculum.

Location of Marimu Senior.

Marimu Senior’s exact physical location is in Nyandarua County, Wanjohi 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. Marimu Senior, just like other Senior schools in the region, favourably compete in co-curricular activities, academics and Infrastructural development. Before joining  Marimu Senior, confirm the pathways it offers.

Frequently Asked Questions About Marimu Senior.

1. What is the UIC Code for Marimu Senior?

The UIC Code for Marimu Senior is SW78.

2. Is Marimu Senior a Boarding or Day School?

Marimu Senior is a Day Senior School.

3. What CBE Grades are taught at Marimu Senior?

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

4. What is the Knec Code for Marimu Senior?

The Official Knec Code for Marimu Senior is 07247218.

5. In Which County is Marimu Senior Found?

Marimu Senior is located in Nyandarua County.

6. Does Marimu Senior admit Boys, Girls or Both?

Marimu Senior is a Mixed Senior School.

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

Marimu Senior was formerly called Marimu Sec.

8. What is Marimu Senior’s New Cluster?

Marimu Senior is now classified as a C4 Senior School.

9. Is there SNE Support for Learners at Marimu Senior?

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

10. Where is Marimu Senior Located?

Marimu Senior is found in Wanjohi Subcounty of Nyandarua County; in the Central Region of the Republic of Kenya.

11. Is a Marimu Senior Private or Public School?

Marimu Senior 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.