Public senior school
Gatamaiyu Boys High School
Also listed as Gatamaiyu Secondary School.
A senior school in Lari sub-county, Kiambu County. It offers STEM, Social Sciences and Arts & Sports Science, with 12 subject combinations.
School details admission facts are for the 2026 intake
- Cluster
- C3Ministry of Education senior-school cluster.
- Gender
- Boys
- Boarding or day
- Boarding
- 2026 fees
- KSh 53,554 or 40,535 per year, depending on the approved tierGovernment-set schedule, not an individual school invoice.
- Ownership
- Public
- Postal address
- BOX 8 KAGWE
Not released yet for the January 2027 intake. Last year: 19 December 2025. KEMIS placement portal · Get an alert when they’re released.
KCSE results the latest 5 years we hold
Gatamaiyu Boys High School scored a mean of 4.50 (C-) in KCSE 2022, close to that year’s national average of 4.50, up from 3.81 in 2021. Over 2020–2022 it ranks 34th of 69 schools in Kiambu County with 3 or more years of published results.
| 2022 | 2021 | 2020 | 2010 | 2009 | |
|---|---|---|---|---|---|
| Mean | 4.500 | 3.808 | 4.273 | 4.941 | 5.263 |
| Grade | C- | D+ | D+ | C- | C- |
| Candidates | 120 | 93 | 110 | 118 | 95 |
Pathways and subject combinations checked 15 October 2026
STEM5 combinationsPure Sciences 2 · Applied Sciences 3
Social Sciences5 combinationsHumanities & Business Studies 5
Arts & Sports Science2 combinationsSports 2
Subjects in these combinations · 16
Agriculture, Biology, Business Studies, Chemistry, Christian Religious Education, Computer Studies, Fine Arts, French, General Science, Geography, History & Citizenship, Literature in English, Mandarin Chinese, Physics, Sports & Recreation, Theatre & FilmSenior schools in Kiambu County offering STEM · Social Sciences · Arts & Sports Science
Codes and registration
- KNEC code
- 11231101
- UIC
- GB2F
- School code
- L2010201
- Level
- Senior school
- Sponsor
- Religious Organisation
- Student needs
- Ordinary
School figures most recent counts
- Students enrolled
- 528
- Teaching staff
- 26
- Board teachers
- 6
- Students per teacher
- 20.3
- Acres
- 25
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Data sources
School history and updated details use the sources below. Other details come from the 2013 school data. Classification and codes come from the 2026 senior-school register.
Register, pathways and fees
- Ministry of Education Grade 10 selection portal (KEMIS) pathways, combinations, emblem · checked 15 October 2026
- December 2025 senior-school list, row 475 classification and codes
- June 2025 senior-school register, row 2788 checked 1 October 2026
- Kenya Gazette Notice No. 1449 2026 fee schedule
KCSE results
- KNEC for 2006–2010, the school’s audit reports since: every source, on the results page 2006–2022
2013 school data
- Kenya Open Data Initiative 2013 school data
Map
- © OpenStreetMap contributors; county outline: IEBC via UN OCHA map data