The first secondary class began in 1951 after the school operated as a primary school for Asian community children since 1948. Later on the primary section was phased out in 1961 and after independence more and more African children were admitted. Today African children form over 95% of the student’s population. Menengai High School is a six streamed mixed day school with a student population of 1,317 drawn from the town and its environs. Classes begin at 7.55 a.m. and end at 4.10 p.m. everyday. Lunch is served to all students between 1.00 p.m. and 1.30 p.m. There are remedial classes on Saturday for the form three and four students.
The school is managed by a Board of Governors appointed by the Minister of Education, but the day to day running of the school is entrusted in the Principal. The Parents – Teachers Association (PTA) takes care of the students’ welfare and supplements government efforts by raising money for development projects. The school has 50 trained teachers employed by the Teachers Service Commission (TSC) and 20 non teaching staff deployed in various sectors of the school.
The school has a wide curriculum, with 19 examinable subjects at the Kenya Certificate of Secondary Education (KCSE) examinations. It also offers variety of co-curricular activities such as games and sports, drama, music, and clubs, such as Christian Union (CU), Young Christian Society (YCS), Peer Counseling, Junior Achievers (JA), Mathematics Club, Wildlife and Young Life. The academic programmes are funded by government through free secondary education program.