 Part of the Misraq (East) Hararghe Zone, Deder is bordered on the south by Malka Balo, on the west by the Mirab (West) Hararghe Zone, on the north by Goro Gutu, on the east by Meta, and on the southeast by Bedeno.Towns in the woreda include Kobo.The altitude of this woreda ranges from 1200 to 3140 meters above sea level; Gondela is the highest point.