The Best Secondary Schools in Ndumberi School Zone 2010
| School | No. of students | Mean Grade | No. of As |
|---|---|---|---|
| Kiambu High School | 158 | 8.50 | 8 |
| Ndumberi Secondary | 91 | 5.50 | 0 |
| Riabai High School | 60 | 4.83 | 0 |
| Kiambu Township Secondary School | 95 | 4.67 | 0 |
| Riara Secondary Sch | 76 | 4.00 | 0 |
| Don Bosco High School | 52 | 3.00 | 0 |