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 Laikipia County:
| KNEC CODE | NAME | TYPE | CATEGORY | |
| 1 | 30514107 | ENDANA SECONDARY SCHOOL | Mixed | County |
| 2 | 30514209 | KALALU GIRLS SECONDARY SCHOOL | Girls | County |
| 3 | 30543103 | ILPOLEI MIXED DAY SECONDARY SCHOOL | Mixed | County |
| 4 | 30543105 | LOKUSERO SECONDARY SCHOOL | Mixed | County |
| 5 | 30544202 | MUHOTETU GIRLS SECONDARY SCHOOL | Girls | County |
| 6 | 30555102 | INORO SECONDARY SCHOOL | Mixed | County |
| 7 | 30555103 | MALE SECONDARY SCHOOL | Girls | County |
| 8 | 30555104 | SWEETWATERS SECONDARY SCHOOL | Mixed | County |
| 9 | 30555106 | THOME BOYS SECONDARY SCHOOL | Boys | County |
| 10 | 30555201 | ST AUGUSTINE SIRIMA SECONDARY SCHOOL | Mixed | County |
| 11 | 30555301 | NGOBIT SECONDARY SCHOOL | Boys | County |
| 12 | 30555303 | NGOBIT GIRLS SECONDARY SCHOOL | Girls | County |
| 13 | 30556102 | MARMANET SECONDARY SCHOOL | Mixed | County |
| 14 | 30556203 | NJORUA HIGH SCHOOL | Mixed | County |
| 15 | 30556305 | IGWAMITI SECONDARY SCHOOL | Mixed | County |