Public senior school
Isinya Boys Secondary School
A C3 boys' boarding senior school in Isinya sub-county, Kajiado County. It offers STEM, Social Sciences and Arts & Sports Science, with 7 subject combinations.
School details admission facts are for the 2026 intake
- Cluster
- C3
- Gender
- Boys
- Boarding or day
- Boarding
- 2026 fees
-
2026 public boarding-school parent fee ceiling: KSh 53,554 or KSh 40,535, depending on the school's previously approved tier. This school's tier is not listed here.
Government-set schedule, not an individual school invoice.
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 2020–2024
Isinya Boys Secondary School scored a mean of 2.64 (D) in KCSE 2024, 2.1 points below the national average, down from 3.41 in 2023. Over 2018–2024 it ranks 14th of 22 schools in Kajiado County with 3 or more years of published results.
| 2024 | 2023 | 2022 | 2021 | 2020 | |
|---|---|---|---|---|---|
| Mean | 2.640 | 3.405 | 3.457 | 2.946 | 3.000 |
| Grade | D | D | D | D | D |
| Candidates | 100 | 74 | 84 | 76 | 74 |
Pathways and subject combinations checked 15 October 2026
STEM4 combinationsPure Sciences 2 · Applied Sciences 2
Social Sciences2 combinationsHumanities & Business Studies 2
Arts & Sports Science1 combinationSports 1
Subjects in these combinations · 12
Agriculture, Biology, Business Studies, Chemistry, Computer Studies, General Science, Geography, History & Citizenship, Literature in English, Physics, Sports & Recreation, Theatre & FilmSenior schools in Kajiado County offering STEM · Social Sciences · Arts & Sports Science
School figures most recent counts
- Students enrolled
- 357
- Teaching staff
- 22
- Board teachers
- 3
- Students per teacher
- 16.2
- Classrooms
- 12
- Dormitories
- 3
- Laboratories
- 1
- Dining halls
- 1
- Toilets
- 28
Codes and registration
- KNEC code
- 31567109
- UIC
- H754
- Level
- Senior school
- Ownership
- Public
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Data sources
The public senior-school list supplies this profile's classification and codes. It does not give coordinates or a school-specific fee invoice.
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 305 checked 1 October 2026
- Kenya Gazette Notice No. 1449 2026 fee schedule
KCSE results
- The school’s audit reports: every source, on the results page 2018–2024