mandiraja inhabits the northern mountains of south serayu to the zone of serayu alluvial depression with an altitude between 50 and 450 meters above sea level, south of the hills covering 6 villages namely salamerta,glempang,kebanaran,somawangi,jalatunda, and kaliwungu while the other 10 villages are lowlands, the highest point of mandiraja is igir hill 475 meters in the border between somawangi village and kebumen district, the big river across the mandiraja district is the kalisapi river and serayu river