St Marys Girls Senior School (formerly called St Marys Girls Secondary School) is a C4 Public Girls Senior School that is physically located in Nakuru County, Nakuru East Sub County in the Rift Valley Region of the Republic of Kenya. This article provides all the details about St Marys Girls Senior School, including: the school’s cluster, level, UIC Code, Knec Code, Admissions and location.
This Day Senior School forms part of the Nakuru 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 Marys Girls Senior School School’s Basic Data and National Information.
| School’s Old Name | St Marys Girls Secondary School |
| School’s New Name | St Marys Girls Senior School |
| Cluster | C4 |
| Gender | Girls |
| Accomodation Type | Day |
| Region | Rift Valley |
| County | Nakuru |
| Sub County | Nakuru East |
| UIC Code | PMDY |
| KNEC Code | 27511530 |
| Type of School | Public |
| Regular or SNE | Regular |
| Disability Type | None |
St Marys 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 St Marys Girls Senior School at grade 10 specialize in any one of the following three main CBE pathways:
- 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.
- 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.
- 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 Marys Girls Senior School’s Background and History.
St Marys Girls Senior School, historically known as St Marys Girls Secondary School, has played a very key role in the Kenyan Education Sector and more particularly in Nakuru 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 Marys Girls Senior School admitted the first grade 10 learners under the CBE Curriculum.
Location of St Marys Girls Senior School.
St Marys Girls Senior School’s exact physical location is in Nakuru County, Nakuru East 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. St Marys Girls Senior School, just like other Senior schools in the region, favourably compete in co-curricular activities, academics and Infrastructural development. Before joining St Marys Girls Senior School, confirm the pathways it offers.
Frequently Asked Questions About St Marys Girls Senior School.
1. What is the UIC Code for St Marys Girls Senior School?
The UIC Code for St Marys Girls Senior School is PMDY.
2. Is St Marys Girls Senior School a Boarding or Day School?
St Marys Girls Senior School is a Day Senior School.
3. What CBE Grades are taught at St Marys Girls Senior School?
St Marys Girls Senior School offers CBE Senior Schools Grades at Grade 10, 11 and 12.
4. What is the Knec Code for St Marys Girls Senior School?
The Official Knec Code for St Marys Girls Senior School is 27511530.
5. In Which County is St Marys Girls Senior School Found?
St Marys Girls Senior School is located in Nakuru County.
6. Does St Marys Girls Senior School admit Boys, Girls or Both?
St Marys Girls Senior School is a Girls Senior School.
7. What was St Marys Girls Senior School’s Fomer Name under the 8-4-4 Education System?
St Marys Girls Senior School was formerly called St Marys Girls Secondary School.
8. What is St Marys Girls Senior School’s New Cluster?
St Marys Girls Senior School is now classified as a C4 Senior School.
9. Is there SNE Support for Learners at St Marys Girls Senior School?
St Marys Girls Senior School offers support for Regular learners. The school’s Disability Type is None.
10. Where is St Marys Girls Senior School Located?
St Marys Girls Senior School is found in Nakuru East Subcounty of Nakuru County; in the Rift Valley Region of the Republic of Kenya.
11. Is a St Marys Girls Senior School Private or Public School?
St Marys 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.