Mosa Senior School (formerly called Mosa Secondary School) is a C4 Public Mixed Senior School that is physically located in Kitui County, Kisasi Sub County in the Eastern Region of the Republic of Kenya. This article provides all the details about Mosa Senior School, including: the school’s cluster, level, UIC Code, Knec Code, Admissions and location.
This Day Senior School forms part of the Kitui Education Network and has fully transitioned to a Senior School that offers Competency Based Education (CBE) Curriculum to Grade 10, 11 and 12 Learners.
Mosa Senior School School’s Basic Data and National Information.
| School’s Old Name | Mosa Secondary School |
| School’s New Name | Mosa Senior School |
| Cluster | C4 |
| Gender | Mixed |
| Accomodation Type | Day |
| Region | Eastern |
| County | Kitui |
| Sub County | Kisasi |
| UIC Code | KHA6 |
| KNEC Code | 13354203 |
| Type of School | Public |
| Regular or SNE | Regular |
| Disability Type | None |
Mosa 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 Mosa Senior School at grade 10 specialize in any one of the following three main CBE pathways:
- 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.
- 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.
- 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.
Mosa Senior School’s Background and History.
Mosa Senior School, historically known as Mosa Secondary School, has played a very key role in the Kenyan Education Sector and more particularly in Kitui 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, Mosa Senior School admitted the first grade 10 learners under the CBE Curriculum.
Location of Mosa Senior School.
Mosa Senior School’s exact physical location is in Kitui County, Kisasi in the Eastern Region of the Republic of Kenya.
What to know about Eastern Region’s Senior Schools.
Eastern is the home of some of the best and highly competitive Senior Schools in Kenya. Mosa Senior School, just like other Senior schools in the region, favourably compete in co-curricular activities, academics and Infrastructural development. Before joining Mosa Senior School, confirm the pathways it offers.
Frequently Asked Questions About Mosa Senior School.
1. What is the UIC Code for Mosa Senior School?
The UIC Code for Mosa Senior School is KHA6.
2. Is Mosa Senior School a Boarding or Day School?
Mosa Senior School is a Day Senior School.
3. What CBE Grades are taught at Mosa Senior School?
Mosa Senior School offers CBE Senior Schools Grades at Grade 10, 11 and 12.
4. What is the Knec Code for Mosa Senior School?
The Official Knec Code for Mosa Senior School is 13354203.
5. In Which County is Mosa Senior School Found?
Mosa Senior School is located in Kitui County.
6. Does Mosa Senior School admit Boys, Girls or Both?
Mosa Senior School is a Mixed Senior School.
7. What was Mosa Senior School’s Fomer Name under the 8-4-4 Education System?
Mosa Senior School was formerly called Mosa Secondary School.
8. What is Mosa Senior School’s New Cluster?
Mosa Senior School is now classified as a C4 Senior School.
9. Is there SNE Support for Learners at Mosa Senior School?
Mosa Senior School offers support for Regular learners. The school’s Disability Type is None.
10. Where is Mosa Senior School Located?
Mosa Senior School is found in Kisasi Subcounty of Kitui County; in the Eastern Region of the Republic of Kenya.
11. Is a Mosa Senior School Private or Public School?
Mosa 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.
