Ilbissil Girls Senior School (formerly called Ilbissil Girls Secondary School) is a C3 Public Girls Senior School that is physically located in Kajiado County, Oloililai Sub County  in the Rift Valley Region of the  Republic of Kenya. This article provides all the details about Ilbissil Girls Senior School, including: the school’s cluster, level, UIC Code, Knec Code, Admissions and location.

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

Ilbissil Girls Senior School School’s Basic Data and National Information.

School’s Old Name	Ilbissil Girls Secondary School
School’s New Name	Ilbissil Girls Senior School
Cluster	C3
Gender	Girls
Accomodation Type	Boarding
Region	Rift Valley
County	Kajiado
Sub County	Oloililai
UIC Code	UTAV
KNEC Code	31590404
Type of School	Public
Regular or SNE	Regular
Disability Type	None

Ilbissil Girls 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 Ilbissil Girls 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.

Ilbissil Girls Senior School’s Background and History.

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

Location of Ilbissil Girls Senior School.

Ilbissil Girls Senior School’s exact physical location is in Kajiado County, Oloililai in the Rift Valley Region of the  Republic of Kenya.

What to know about Rift Valley Region’s Senior Schools.

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

Frequently Asked Questions About Ilbissil Girls Senior School.

1. What is the UIC Code for Ilbissil Girls Senior School?

The UIC Code for Ilbissil Girls Senior School is UTAV.

2. Is Ilbissil Girls Senior School a Boarding or Day School?

Ilbissil Girls Senior School is a Boarding Senior School.

3. What CBE Grades are taught at Ilbissil Girls Senior School?

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

4. What is the Knec Code for Ilbissil Girls Senior School?

The Official Knec Code for Ilbissil Girls Senior School is 31590404.

5. In Which County is Ilbissil Girls Senior School Found?

Ilbissil Girls Senior School is located in Kajiado County.

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

Ilbissil Girls Senior School is a Girls Senior School.

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

Ilbissil Girls Senior School was formerly called Ilbissil Girls Secondary School.

8. What is Ilbissil Girls Senior School’s New Cluster?

Ilbissil Girls Senior School is now classified as a C3 Senior School.

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

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

10. Where is Ilbissil Girls Senior School Located?

Ilbissil Girls Senior School is found in Oloililai Subcounty of Kajiado County; in the Rift Valley Region of the Republic of Kenya.

11. Is a Ilbissil Girls Senior School Private or Public School?

Ilbissil Girls 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.