Extra County Schools in Kenya form the second tier of secondary schools; after National schools. They were formerly referred to as Provincial schools. These schools are distributed all over the Country with each county having its share. The schools admit students from all over the country. These schools are in 3 Categories i.e category 1 (C1), Category 2 (C2) and Category 3 (C3).

Here are the Extra County Schools in Kiambu County:

School  Code	School Name	Category	Type	Cluster
11205101	KANUNGA HIGH SCHOOL	Extra County	Boys	C1
11205108	LORETO GIRLS HIGH SCHOOL KIAMBU	Extra County	Girls	C1
11205201	ST. ANNE’S SECONDARY SCHOOL-LIOKI	Extra County	Girls	C1
11205204	KIAMBU HIGH SCHOOL	Extra County	Boys	C1
11205205	NDUMBERI GIRLS SECONDARY SCHOOL	Extra County	Girls	C3
11207101	THIKA HIGH SCHOOL	Extra County	Boys	C1
11207102	CHANIA BOYS’ HIGH SCHOOL	Extra County	Boys	C1
11207108	CHANIA GIRLS’ HIGH SCHOOL	Extra County	Girls	C1
11212101	MUHOHO HIGH	Extra County	Boys	C1
11231102	PRECIOUS BLOOD KAGWE GIRLS SECONDARY SCHOOL	Extra County	Girls	C1
11231207	KIJABE BOYS HIGH SCHOOL	Extra County	Boys	C1
11231208	KIJABE GIRLS HIGH SCHOOL	Extra County	Girls	C1
11232102	ST JOSEPH HIGH SCHOOL	Extra County	Boys	C3
11232201	GITHIGA HIGH SCHOOL	Extra County	Boys	C3
11236101	ST.FRANCIS GIRLS HIGH SCHOOL (MANG’U)	Extra County	Girls	C1
11240106	SENIOR CHIEF KOINANGE GIRLS HIGH SCHOOL	Extra County	Girls	C1
11240107	MUTHURWA SECONDARY SCHOOL	Extra County	Girls	C3
11241001	MARY LEAKEY GIRLS’ HIGH SCHOOL	Extra County	Girls	C1
11241005	KABETE HIGH SCHOOL	Extra County	Boys	C3

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