County secondary schools in Kenya form the third tier after national and extra-county schools respectively.
Most of Kenyan learners are absorbed by these schools.
Admission to county schools is done online by the Ministry of Education.
They are either mixed or single-sex.
Here is a list of county secondary schools in Uasin Gishu County:
| KNEC CODE | NAME | TYPE | CATEGORY | |
| 1 | 26509109 | KAPKEBEN SECONDARY SCHOOL | Mixed | County |
| 2 | 26509113 | A.I.C LESERU BOYS SCHOOL | Boys | County |
| 3 | 26509115 | KAPTEBEE SECONDARY SCHOOL | Mixed | County |
| 4 | 26509124 | KOSACHEI SECONDARY SCHOOL | Mixed | County |
| 5 | 26509141 | A.I.C LESERU GIRLS SCHOOL | Girls | County |
| 6 | 26534115 | BISHOP BIRECH GIRLS TILOL | Girls | County |
| 7 | 26534117 | CHEPNG’OROR SECONDARY SCHOOL | Mixed | County |
| 8 | 26576106 | KIBOROM SECONDARY SCHOOL | Mixed | County |
| 9 | 26576112 | SISYOBEI ADVENTIST SECONDARY SCHOOL | Mixed | County |
| 10 | 26577105 | KIMONING SECONDARY SCHOOL | Boys | County |
| 11 | 26577131 | ST MARY’S GIRLS SECONDARY SCHOOL KAPSILIOT | Girls | County |
| 12 | 26578036 | KERINGET SECONDARY SCHOOL | Boys | County |
Here is a list of county secondary schools in Uasin Gishu County:
