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 Schools in Murang’ a County:
| NAME | KNEC CODE | TYPE | CATEGORY | |
| 1 | ST. PAULS BOYS HIGH SCHOOL,
GATHUKI – INI |
10204201 | Boys | County |
| 2 | GATURI GIRLS SECONDARY SCHOOL | 10204202 | Girls | County |
| 3 | IGIKIRO SECONDARY SCHOOL | 10208204 | Boys | County |
| 4 | KAHARO SECONDARY SCHOOL | 10208305 | Girls | County |
| 5 | GICHAGI-INI SECONDARY SCHOOL | 10226203 | Mixed | County |
| 6 | KIRANGA SECONDARY SCHOOL | 10226212 | Boys | County |
| 7 | ST PETERS KANDARA BOYS SECONDARY SCHOOL | 10226226 | Boys | County |
| 8 | KIGUMO GIRLS HIGH SCHOOL | 10227112 | Girls | County |
| 9 | RARAKWA SECONDARY SCHOOL | 10227303 | Girls | County |
| 10 | KIRITI GIRLS SECONDARY SCHOOL | 10228102 | Girls | County |
| 11 | WAHUNDURA HIGH SCHOOL | 10228201 | Boys | County |
| 12 | KAMACHARIA SECONDARY SCHOOL | 10228204 | Girls | County |
| 13 | KIRU SECONDARY SCHOOL | 10228402 | Boys | County |
| 14 | KAIRO GIRLS SECONDARY SCHOOL | 10228404 | Girls | County |
| 15 | KIANGUNYI GIRLS SECONDARY SCHOOL | 10229103 | Girls | County |
| 16 | MUGURU SECONDARY SCHOOL | 10229105 | Mixed | County |
| 17 | RWATHIA GIRLS SECONDARY SCHOOL | 10229201 | Girls | County |
| 18 | DR KIANO BOYS SECONDARY SCHOOL | 10229206 | Mixed | County |
| 19 | KIRURI SECONDARY SCHOOL | 10229207 | Boys | County |
| 20 | GATURA GIRLS | 10234101 | Girls | County |
| 21 | MBUGITI SECONDARY SCHOOL | 10234112 | Boys | County |
| 22 | GIACHUKI SECONDARY SCHOOL | 10234206 | Boys | County |
| 23 | KIUNYU SECONDARY SCHOOL | 10234306 | Girls | County |
| 24 | KIHUMBU-INI SECONDARY SCHOOL | 10234308 | Girls | County |
| 25 | ST. ANUARITE GATANGA GIRLS SECONDARY SCHOOL | 10234406 | Girls | County |
| 26 | CHOMO SECONDARY SCHOOL | 10234410 | Boys | County |
| 27 | GITITU SECONDARY SCHOOL | 10234601 | Mixed | County |
| 28 | KOIMBI SECONDARY SCHOOL | 10238107 | Boys | County |
| 29 | GITWEKU SECONDARY SCHOOL | 10238110 | Girls | County |
| 30 | DR. KIANO GIRLS SECONDARY SCHOOL | 10238118 | Girls | County |
| 31 | KIUMBA MIXED DAY SECONDARY SCHOOL | 10238141 | Mixed | County |