A.I.C Lessos Senior School (formerly called A.I.C Lessos Secondary School) is a C4 Public Mixed Senior School that is physically located in Trans Nzoia County, Kwanza Sub County  in the Rift Valley Region of the  Republic of Kenya. This article provides all the details about A.I.C Lessos Senior School, including: the school’s cluster, level, UIC Code, Knec Code, Admissions and location.

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

A.I.C Lessos Senior School School’s Basic Data and National Information.

School’s Old Name	A.I.C Lessos Secondary School
School’s New Name	A.I.C Lessos Senior School
Cluster	C4
Gender	Mixed
Accomodation Type	Day
Region	Rift Valley
County	Trans Nzoia
Sub County	Kwanza
UIC Code	4E6M
KNEC Code	23529133
Type of School	Public
Regular or SNE	Regular
Disability Type	None

A.I.C Lessos 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 A.I.C Lessos 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.

A.I.C Lessos Senior School’s Background and History.

A.I.C Lessos Senior School, historically known as A.I.C Lessos Secondary School, has played a very key role in the Kenyan Education Sector and more particularly in Trans Nzoia 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, A.I.C Lessos Senior School admitted the first grade 10 learners under the CBE Curriculum.

Location of A.I.C Lessos Senior School.

A.I.C Lessos Senior School’s exact physical location is in Trans Nzoia County, Kwanza 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. A.I.C Lessos Senior School, just like other Senior schools in the region, favourably compete in co-curricular activities, academics and Infrastructural development. Before joining  A.I.C Lessos Senior School, confirm the pathways it offers.

Frequently Asked Questions About A.I.C Lessos Senior School.

1. What is the UIC Code for A.I.C Lessos Senior School?

The UIC Code for A.I.C Lessos Senior School is 4E6M.

2. Is A.I.C Lessos Senior School a Boarding or Day School?

A.I.C Lessos Senior School is a Day Senior School.

3. What CBE Grades are taught at A.I.C Lessos Senior School?

A.I.C Lessos Senior School offers CBE Senior Schools Grades at Grade 10, 11 and 12.

4. What is the Knec Code for A.I.C Lessos Senior School?

The Official Knec Code for A.I.C Lessos Senior School is 23529133.

5. In Which County is A.I.C Lessos Senior School Found?

A.I.C Lessos Senior School is located in Trans Nzoia County.

6. Does A.I.C Lessos Senior School admit Boys, Girls or Both?

A.I.C Lessos Senior School is a Mixed Senior School.

7. What was A.I.C Lessos Senior School’s Fomer Name under the 8-4-4 Education System?

A.I.C Lessos Senior School was formerly called A.I.C Lessos Secondary School.

8. What is A.I.C Lessos Senior School’s New Cluster?

A.I.C Lessos Senior School is now classified as a C4 Senior School.

9. Is there SNE Support for Learners at A.I.C Lessos Senior School?

A.I.C Lessos Senior School offers support for Regular learners. The school’s Disability Type is None.

10. Where is A.I.C Lessos Senior School Located?

A.I.C Lessos Senior School is found in Kwanza Subcounty of Trans Nzoia County; in the Rift Valley Region of the Republic of Kenya.

11. Is a A.I.C Lessos Senior School Private or Public School?

A.I.C Lessos 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.