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

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

Nzaini Senior School School’s Basic Data and National Information.

School’s Old Name	Nzaini Secondary School
School’s New Name	Nzaini Senior School
Cluster	C4
Gender	Mixed
Accomodation Type	Day
Region	Eastern
County	Machakos
Sub County	Kalama
UIC Code	S5N4
KNEC Code	12363202
Type of School	Public
Regular or SNE	Regular
Disability Type	None

Nzaini 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 Nzaini 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.

Nzaini Senior School’s Background and History.

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

Location of Nzaini Senior School.

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

Frequently Asked Questions About Nzaini Senior School.

1. What is the UIC Code for Nzaini Senior School?

The UIC Code for Nzaini Senior School is S5N4.

2. Is Nzaini Senior School a Boarding or Day School?

Nzaini Senior School is a Day Senior School.

3. What CBE Grades are taught at Nzaini Senior School?

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

4. What is the Knec Code for Nzaini Senior School?

The Official Knec Code for Nzaini Senior School is 12363202.

5. In Which County is Nzaini Senior School Found?

Nzaini Senior School is located in Machakos County.

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

Nzaini Senior School is a Mixed Senior School.

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

Nzaini Senior School was formerly called Nzaini Secondary School.

8. What is Nzaini Senior School’s New Cluster?

Nzaini Senior School is now classified as a C4 Senior School.

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

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

10. Where is Nzaini Senior School Located?

Nzaini Senior School is found in Kalama Subcounty of Machakos County; in the Eastern Region of the Republic of Kenya.

11. Is a Nzaini Senior School Private or Public School?

Nzaini 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.