Public senior school

Thiba Mixed Secondary School

Also listed as Thiba Secondary School.

A senior school in Mwea West sub-county, Kirinyaga County. It offers STEM and Social Sciences, with 9 subject combinations.

School details admission facts are for the 2026 intake

Cluster: C4Ministry of Education senior-school cluster.
Gender: Mixed
Boarding or day: Day
2026 fees: For the listed day-school fee heads, parents are charged KSh 0.Government-set schedule, not an individual school invoice.
Ownership: Public

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 2006–2010

Thiba Mixed Secondary School scored a mean of 4.80 (C-) in KCSE 2010, 0.4 points below the national average, up from 4.36 in 2009.

	2010	2009	2008	2007	2006
Mean	4.797	4.356	4.163	3.946	4.053
Grade	C-	D+	D+	D+	D+
Candidates	64	73	49	37	38

KCSE results

Pathways and subject combinations checked 15 October 2026

STEM6 combinationsPure Sciences 2 · Applied Sciences 4

Pure Sciences · 2Agriculture, Biology, ChemistryST1042

Biology, Chemistry, PhysicsST1048

Applied Sciences · 4Agriculture, Biology, Home ScienceST2081

Agriculture, Home Science, PhysicsST2093

Biology, Computer Studies, GeographyST2011

Business Studies, Computer Studies, Home ScienceST2023

Social Sciences3 combinationsHumanities & Business Studies 3

Humanities & Business Studies · 3Business Studies, Christian Religious Education, Fasihi ya KiswahiliSS2109

Business Studies, Geography, History & CitizenshipSS2025

Computer Studies, Geography, History & CitizenshipSS2024

Arts & Sports ScienceNot offered

Subjects in these combinations · 11

Agriculture, Biology, Business Studies, Chemistry, Christian Religious Education, Computer Studies, Fasihi ya Kiswahili, Geography, History & Citizenship, Home Science, Physics

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

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

Codes and registration

KNEC code: 09239107
UIC: ADD8
School code: B2020163
Level: Senior school
Sponsor: Central Government/DEB
Student needs: Ordinary
Postal address: 3 WANGURU

Older records figures from the 2013 records; counts made in 2007

Students enrolled: 271
Teaching staff: 14
Students per teacher: 19.4

Staff counted in 2007 ›

Role	Men	Women	Total
TSC teachers	6	7	13
PTA and board teachers	0	1	1
Non-teaching staff	3	2	5

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Data sources

The school description and 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 2375 classification and codes
June 2025 senior-school register, row 3220 checked 15 October 2026
Kenya Gazette Notice No. 1449 2026 fee schedule