St Marks Kagilo Senior School (formerly called St Marks Kagilo Secondary School) is a C4 Public Mixed Senior School that is physically located in Siaya County, Gem Yala Sub County  in the Nyanza Region of the  Republic of Kenya. This article provides all the details about St Marks Kagilo Senior School, including: the school’s cluster, level, UIC Code, Knec Code, Admissions and location.

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

St Marks Kagilo Senior School School’s Basic Data and National Information.

School’s Old Name	St Marks Kagilo Secondary School
School’s New Name	St Marks Kagilo Senior School
Cluster	C4
Gender	Mixed
Accomodation Type	Day
Region	Nyanza
County	Siaya
Sub County	Gem Yala
UIC Code	MG8N
KNEC Code	42749119
Type of School	Public
Regular or SNE	Regular
Disability Type	None

St Marks Kagilo 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 St Marks Kagilo 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.

St Marks Kagilo Senior School’s Background and History.

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

Location of St Marks Kagilo Senior School.

St Marks Kagilo Senior School’s exact physical location is in Siaya County, Gem Yala in the Nyanza Region of the  Republic of Kenya.

What to know about Nyanza Region’s Senior Schools.

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

Frequently Asked Questions About St Marks Kagilo Senior School.

1. What is the UIC Code for St Marks Kagilo Senior School?

The UIC Code for St Marks Kagilo Senior School is MG8N.

2. Is St Marks Kagilo Senior School a Boarding or Day School?

St Marks Kagilo Senior School is a Day Senior School.

3. What CBE Grades are taught at St Marks Kagilo Senior School?

St Marks Kagilo Senior School offers CBE Senior Schools Grades at Grade 10, 11 and 12.

4. What is the Knec Code for St Marks Kagilo Senior School?

The Official Knec Code for St Marks Kagilo Senior School is 42749119.

5. In Which County is St Marks Kagilo Senior School Found?

St Marks Kagilo Senior School is located in Siaya County.

6. Does St Marks Kagilo Senior School admit Boys, Girls or Both?

St Marks Kagilo Senior School is a Mixed Senior School.

7. What was St Marks Kagilo Senior School’s Fomer Name under the 8-4-4 Education System?

St Marks Kagilo Senior School was formerly called St Marks Kagilo Secondary School.

8. What is St Marks Kagilo Senior School’s New Cluster?

St Marks Kagilo Senior School is now classified as a C4 Senior School.

9. Is there SNE Support for Learners at St Marks Kagilo Senior School?

St Marks Kagilo Senior School offers support for Regular learners. The school’s Disability Type is None.

10. Where is St Marks Kagilo Senior School Located?

St Marks Kagilo Senior School is found in Gem Yala Subcounty of Siaya County; in the Nyanza Region of the Republic of Kenya.

11. Is a St Marks Kagilo Senior School Private or Public School?

St Marks Kagilo 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.