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

This Day Senior School forms part of the Nyamira 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. Theresa Omonono Senior School School’s Basic Data and National Information.

School’s Old Name	St. Theresa Omonono Secondary School
School’s New Name	St. Theresa Omonono Senior School
Cluster	C4
Gender	Mixed
Accomodation Type	Day
Region	Nyanza
County	Nyamira
Sub County	Nyamira North
UIC Code	ML9M
KNEC Code	43728131
Type of School	Public
Regular or SNE	Regular
Disability Type	None

St. Theresa Omonono 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. Theresa Omonono 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. Theresa Omonono Senior School’s Background and History.

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

Location of St. Theresa Omonono Senior School.

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

Frequently Asked Questions About St. Theresa Omonono Senior School.

1. What is the UIC Code for St. Theresa Omonono Senior School?

The UIC Code for St. Theresa Omonono Senior School is ML9M.

2. Is St. Theresa Omonono Senior School a Boarding or Day School?

St. Theresa Omonono Senior School is a Day Senior School.

3. What CBE Grades are taught at St. Theresa Omonono Senior School?

St. Theresa Omonono Senior School offers CBE Senior Schools Grades at Grade 10, 11 and 12.

4. What is the Knec Code for St. Theresa Omonono Senior School?

The Official Knec Code for St. Theresa Omonono Senior School is 43728131.

5. In Which County is St. Theresa Omonono Senior School Found?

St. Theresa Omonono Senior School is located in Nyamira County.

6. Does St. Theresa Omonono Senior School admit Boys, Girls or Both?

St. Theresa Omonono Senior School is a Mixed Senior School.

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

St. Theresa Omonono Senior School was formerly called St. Theresa Omonono Secondary School.

8. What is St. Theresa Omonono Senior School’s New Cluster?

St. Theresa Omonono Senior School is now classified as a C4 Senior School.

9. Is there SNE Support for Learners at St. Theresa Omonono Senior School?

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

10. Where is St. Theresa Omonono Senior School Located?

St. Theresa Omonono Senior School is found in Nyamira North Subcounty of Nyamira County; in the Nyanza Region of the Republic of Kenya.

11. Is a St. Theresa Omonono Senior School Private or Public School?

St. Theresa Omonono 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.