Strathmore school from Nairobi dethroned 2017 top school, Sing’ore girls, to clinch position one in the 2018 Kenya Certificate of Secondary Education (KCSE) exams. With a performance index of 72.28. Strathmore, a private school from Nairobi, outclassed other giants to sit at the summit of this year’s KCSE list of top schools, Nationally. At the second position is another private school from Nakuru, Moi High school- Kabarak, which recorded a performance index of 72.12. Below, is the list of top performers, nationally, in the 2018 KCSE Exams.
| School | Category | County |
| · Strathmore | Private | Nairobi |
| · Moi High Schl Kabarak | Private | Nakuru |
| · Moi Tea Girls | Extra County | Kericho |
| · Alliance Girls | National | Kiambu |
| · Alliance High | National | Kiambu |
| · Mang’u High | National | Kiambu |
| · Kisima Mixed Sec. | Private | Nyandarua |
| · Precious Blood Riruta | Extra County | Nairobi |
| · Orero Boys Sec. | Extra County | Homa Bay |
| · The Kenya High | National | Nairobi |
| · Moi Girls, Eldoret | National | Uasin Gishu |
| · Kianda School | Private | Nairobi |
| · Segero Adventist | Private | Uasin Gishu |
| · Anestar Boys, Lanet | Private | Nakuru |
| · Kapsabet Boys | National | Nandi |
| · Starehe Girls’ | National | Nairobi |
| · Maryhill Girls’ | National | Kiambu |
| · Pangani Girls’ | National | Nairobi |
| · Light Academy, Nairobi | Private | Nairobi |
| · Sheikh Khalifa Bin Zayed-Nahyan | Private | Mombasa |
| · Starehe Boys’ Centre | Private | Nairobi |
| · Loreto High, Limuru | Private | Kiambu |
| · Mary Mother of Grace Sec. Schl. | National | Laikipia |
| · Maseno School | National | Kisumu |
| · Agoro Sare High | Extra County | Homa Bay |
| · Sunshine Secondary | Private | Nairobi |
| · Kyeni Girls High | Extra County | Embu |
| · Mutira Girls’ Sec. | Extra County | Kirinyaga |
| · St. Theresa’s Girls Sec. | Private | Samburu |
| · Maranda High | National | Siaya |
| · Murang’a High | National | Muranga |
| · Riara Springs Academy | Private | Nairobi |
| · Light Academy, Mombasa | Private | Mombasa |
| · Pioneer School | Private | Muranga |
| · Metkei Sec. Schl | Extra County | Elgeyo Marakwet |
