The Best Secondary Schools in Mangu Location 2010 Filter Year 20102009200820072006 #Rank School County No. of students Mean Grade No. of As 1 Mutuma Secondary School Kiambu735.350 2 Igegania Secondary School Kiambu774.870 3 Nyamathumbi Secondary School Kiambu484.430 4 Nyamangara Secondary School Kiambu484.380 5 Mukurwe Secondary School Kiambu193.170