Mobamba High School is located in Masaba South, Kisii County. It is a public mixed boarding secondary school. It is an Extra County level institution, meaning it serves students from the wider region beyond the local community. The school started as a sub county school way back in 1977. It was officially registered in the year 1985. It was elevated to a County School in the year 2018. The school has a significant enrollment of 2600 students. The school offers a boarding facility for its students and is located near Kiamokama or Keroka town in Kisii County. The school's development over time has contributed to the education landscape in the region, offering secondary education opportunities to many students from the area. The institution is known for being sponsored by the Church of God East Africa.