Top Kiambu County Secondary School in KCSE 2017
The Kiambu County Secondary school performed considerably well this year with 8 schools appearing in the top 100 schools nationally among them 6 national schools, one private school,Highlands high school that was position 53 Nationally with 58.18399 points and one extra county school, St. Francis Girls high school that had a remarkable improvement this year at position 72 Nationally with a mean score of 56.14096
The following schools under the Kiambu county appeared in the best performing list of school in Kenya lead by Alliance High school that was position 3 Nationally with a mean score of 68.68268, then followed by Loreto High School that emerged position 5 nationally with 68.13454, here is the list of best Kiambu county secondary schools that managed top 100 schools Nationally
| POSITION | CODE | SCHOOL | CATEGORY | MEAN SCORE |
| 3 | 11200002 | ALLIANCE GIRLS’ HIGH SCHOOL | NATIONAL | 68.68268 |
| 5 | 11200005 | LORETO HIGH SCHOOL LIMURU | NATIONAL | 68.13454 |
| 9 | 11200001 | ALLIANCE HIGH SCHOOL | NATIONAL | 67.35696 |
| 14 | 11200003 | MANGU HIGH SCHOOL | NATIONAL | 65.23101 |
| 29 | 11200006 | MARYHILL GIRLS HIGH SCHOOL | NATIONAL | 62.73497 |
| 39 | 11200004 | LIMURU GIRLS’ SCHOOL | NATIONAL | 60.20917 |
| 53 | 11211340 | HIGHLANDS HIGH SCHOOL, LIMURU | PRIVATE | 58.18399 |
| 72 | 11236101 | ST.FRANCIS GIRLS HIGH SCHOOL (MANG’U) | EXTRA COUNTY | 56.14096 |