Public senior school

Isiolo Boys Secondary School

A senior school in Isiolo sub-county, Isiolo County. It offers STEM, Social Sciences and Arts & Sports Science, with 8 subject combinations.

School details admission facts are for the 2026 intake

Cluster: C2Ministry 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: -

Next placements

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 2019–2023

Isiolo Boys Secondary School scored a mean of 5.20 (C-) in KCSE 2023, 0.7 points above the national average, up from 4.70 in 2022. Over 2018–2023 it ranks 6th of 16 schools in Isiolo County with 3 or more years of published results.

	2023	2022	2021	2020	2019
Mean	5.200	4.700	3.721	4.696	2.785
Grade	C-	C-	D+	C-	D
Candidates	54	60	55	69	65

All 11 years of KCSE results, 2006–2023

Pathways and subject combinations checked 15 October 2026

STEM4 combinationsPure Sciences 2 · Applied Sciences 2

Pure Sciences · 2Agriculture, Biology, ChemistryST1042

Biology, Chemistry, PhysicsST1048

Applied Sciences · 2Business Studies, Computer Studies, PhysicsST2007

Computer Studies, Geography, PhysicsST2018

Social Sciences3 combinationsHumanities & Business Studies 3

Humanities & Business Studies · 3Business Studies, Geography, History & CitizenshipSS2025

Computer Studies, Geography, Islamic Religious EducationSS2033

Geography, History & Citizenship, Literature in EnglishSS2004

Arts & Sports Science1 combinationSports 1

Sports · 1General Science, Sports & Recreation, Theatre & FilmAS2038

Subjects in these combinations · 13

Agriculture, Biology, Business Studies, Chemistry, Computer Studies, General Science, Geography, History & Citizenship, Islamic Religious Education, Literature in English, Physics, Sports & Recreation, Theatre & Film

Senior schools in Isiolo County offering STEM · Social Sciences · Arts & Sports Science

How subject selection works: what pathways, tracks and the codes mean

Codes and registration

KNEC code: 17306101
UIC: 59YN
School code: L4020013
Level: Senior school
Sponsor: Central Government/DEB
Student needs: Ordinary
2013 boarding or day: Day

School figures most recent counts

Students enrolled: 324

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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 121 classification and codes
June 2025 senior-school register, row 1775 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 2006–2023