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

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

Thiba Mixed Senior School School’s Basic Data and National Information.

School’s Old Name	Thiba Mixed Secondary School
School’s New Name	Thiba Mixed Senior School
Cluster	C4
Gender	Mixed
Accomodation Type	Day
Region	Central
County	Kirinyaga
Sub County	Mwea West
UIC Code	ADD8
KNEC Code	9239107
Type of School	Public
Regular or SNE	Regular
Disability Type	None

Thiba Mixed 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 Thiba Mixed 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.

Thiba Mixed Senior School’s Background and History.

Thiba Mixed Senior School, historically known as Thiba Mixed Secondary School, has played a very key role in the Kenyan Education Sector and more particularly in Kirinyaga 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, Thiba Mixed Senior School admitted the first grade 10 learners under the CBE Curriculum.

Location of Thiba Mixed Senior School.

Thiba Mixed Senior School’s exact physical location is in Kirinyaga County, Mwea West 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. Thiba Mixed Senior School, just like other Senior schools in the region, favourably compete in co-curricular activities, academics and Infrastructural development. Before joining  Thiba Mixed Senior School, confirm the pathways it offers.

Frequently Asked Questions About Thiba Mixed Senior School.

1. What is the UIC Code for Thiba Mixed Senior School?

The UIC Code for Thiba Mixed Senior School is ADD8.

2. Is Thiba Mixed Senior School a Boarding or Day School?

Thiba Mixed Senior School is a Day Senior School.

3. What CBE Grades are taught at Thiba Mixed Senior School?

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

4. What is the Knec Code for Thiba Mixed Senior School?

The Official Knec Code for Thiba Mixed Senior School is 9239107.

5. In Which County is Thiba Mixed Senior School Found?

Thiba Mixed Senior School is located in Kirinyaga County.

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

Thiba Mixed Senior School is a Mixed Senior School.

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

Thiba Mixed Senior School was formerly called Thiba Mixed Secondary School.

8. What is Thiba Mixed Senior School’s New Cluster?

Thiba Mixed Senior School is now classified as a C4 Senior School.

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

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

10. Where is Thiba Mixed Senior School Located?

Thiba Mixed Senior School is found in Mwea West Subcounty of Kirinyaga County; in the Central Region of the Republic of Kenya.

11. Is a Thiba Mixed Senior School Private or Public School?

Thiba Mixed 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.