Moi Tea and Litein High school headline the list of best extra county schools in Kericho County.
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). The Schools are either of Mixed or single sex type.
Here are the Extra County Schools in Kericho County:
| School Code | School Name | Category | Type | Cluster |
| 28512101 | KERICHO HIGH SCHOOL | Extra County | Boys | C1 |
| 28512104 | KERICHO TEA SECONDARY SCHOOL | Extra County | Boys | C2 |
| 28512112 | MOI TEA GIRLS SECONDARY SCHOOL | Extra County | Girls | C1 |
| 28522501 | TENGECHA BOYS HIGH SCHOOL | Extra County | Boys | C1 |
| 28522504 | CHEBWAGAN SECONDARY SCHOOL | Extra County | Boys | C3 |
| 28522505 | LITEIN HIGH SCHOOL | Extra County | Boys | C1 |
| 28522508 | CHEBORGE BOYS HIGH SCHOOL | Extra County | Boys | C3 |
| 28522509 | TENGECHA GIRLS SECONDARY SCHOOL | Extra County | Girls | C1 |
| 28522512 | KORONGOI GIRLS’ SECONDARY | Extra County | Girls | C2 |
| 28522515 | CHELILIS GIRLS SECONDARY SCHOOL | Extra County | Girls | C2 |
| 28522520 | A.I.C LITEIN GIRLS SECONDARY S CHOOL | Extra County | Girls | C1 |
| 28539105 | KIPKELION GIRLS’ HIGH | Extra County | Girls | C1 |
| 28553102 | CHEPTENYE SECONDARY SCHOOL | Extra County | Boys | C2 |
| 28553103 | SOSIOT GIRLS’ SECONDARY SCHOOL | Extra County | Girls | C1 |
| 28553104 | KABOROK GIRLS HIGH SCHOOL | Extra County | Girls | C3 |
| 28553113 | CHEPKOTON GIRLS SECONDARY SCHOOL | Extra County | Girls | C3 |
| 28571201 | LONDIANI BOYS SECONDARY SCHOOL | Extra County | Boys | C1 |
| 28571202 | LONDIANI GIRLS’ SECONDARY SCHOOL | Extra County | Girls | C1 |
| 28571203 | SACRED HILL GIRLS’ HIGH SCHOOL – LONDIANI | Extra County | Girls | C1 |
| 28575203 | SOLIAT BOYS’ SECONDARY SCHOOL | Extra County | Boys | C2 |
| 28575204 | MOI KIPSITET GIRLS SECONDARY SCHOOL | Extra County | Girls | C2 |
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