Oldonyiro Senior School (formerly called Oldonyiro Secondary School) is a C3 Public Mixed Senior School that is physically located in Isiolo County, Oldonyiro Sub County in the Eastern Region of the Republic of Kenya. This article provides all the details about Oldonyiro Senior School, including: the school’s cluster, level, UIC Code, Knec Code, Admissions and location.
This Boarding Senior School forms part of the Isiolo Education Network and has fully transitioned to a Senior School that offers Competency Based Education (CBE) Curriculum to Grade 10, 11 and 12 Learners.
Oldonyiro Senior School School’s Basic Data and National Information.
| School’s Old Name | Oldonyiro Secondary School |
| School’s New Name | Oldonyiro Senior School |
| Cluster | C3 |
| Gender | Mixed |
| Accomodation Type | Boarding |
| Region | Eastern |
| County | Isiolo |
| Sub County | Oldonyiro |
| UIC Code | R8K2 |
| KNEC Code | 17372301 |
| Type of School | Public |
| Regular or SNE | Regular |
| Disability Type | None |
Oldonyiro 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 Oldonyiro 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.
Oldonyiro Senior School’s Background and History.
Oldonyiro Senior School, historically known as Oldonyiro Secondary School, has played a very key role in the Kenyan Education Sector and more particularly in Isiolo 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, Oldonyiro Senior School admitted the first grade 10 learners under the CBE Curriculum.
Location of Oldonyiro Senior School.
Oldonyiro Senior School’s exact physical location is in Isiolo County, Oldonyiro 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. Oldonyiro Senior School, just like other Senior schools in the region, favourably compete in co-curricular activities, academics and Infrastructural development. Before joining Oldonyiro Senior School, confirm the pathways it offers.
Frequently Asked Questions About Oldonyiro Senior School.
1. What is the UIC Code for Oldonyiro Senior School?
The UIC Code for Oldonyiro Senior School is R8K2.
2. Is Oldonyiro Senior School a Boarding or Day School?
Oldonyiro Senior School is a Boarding Senior School.
3. What CBE Grades are taught at Oldonyiro Senior School?
Oldonyiro Senior School offers CBE Senior Schools Grades at Grade 10, 11 and 12.
4. What is the Knec Code for Oldonyiro Senior School?
The Official Knec Code for Oldonyiro Senior School is 17372301.
5. In Which County is Oldonyiro Senior School Found?
Oldonyiro Senior School is located in Isiolo County.
6. Does Oldonyiro Senior School admit Boys, Girls or Both?
Oldonyiro Senior School is a Mixed Senior School.
7. What was Oldonyiro Senior School’s Fomer Name under the 8-4-4 Education System?
Oldonyiro Senior School was formerly called Oldonyiro Secondary School.
8. What is Oldonyiro Senior School’s New Cluster?
Oldonyiro Senior School is now classified as a C3 Senior School.
9. Is there SNE Support for Learners at Oldonyiro Senior School?
Oldonyiro Senior School offers support for Regular learners. The school’s Disability Type is None.
10. Where is Oldonyiro Senior School Located?
Oldonyiro Senior School is found in Oldonyiro Subcounty of Isiolo County; in the Eastern Region of the Republic of Kenya.
11. Is a Oldonyiro Senior School Private or Public School?
Oldonyiro 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.
