Ganga School Zone School name Search School type All7Primary0Senior7 Igwanjau SecondaryC2 · Mixed · Boarding, Maara sub-county, Tharaka-Nithi CountyIkumbo Secondary SchoolC4 · Mixed · Day, Maara sub-county, Tharaka-Nithi CountyKiamaogo Mixed Day SecondaryC4 · Mixed · Day, Maara sub-county, Tharaka-Nithi CountyMikui Mixed Day SecondarySenior school · Mixed · Day, Tharaka-Nithi CountyNgatia Girls SecondarySenior school · Girls · Day & Boarding, Tharaka-Nithi CountyNgeru Boys SecondaryC3 · Boys · Boarding, Maara sub-county, Tharaka-Nithi CountySt Anne Girls Secondary KariakomoSenior school · Girls · Day, Tharaka-Nithi County Tharaka-Nithi County KCSE results · Historical KCSE rankings for Ganga Sources Senior schools: Ministry of Education lists for the 2026 intake, from the June 2025 list and the December 2025 C1, C2, C3 and C4 lists. Checked 22 October 2026. Other schools come from our older directory. Each school page shows its dates.