Being part of the West Arsi Zone, Kokosa is bordered on the south and west by the Sidama  Region, on the north by the Kofele, on the northeast by Dodola, and on the southeast by Nensebo.
Located in the West Arsi Zone, Kokosa is situated adjacent to the Sidama Region to the south and west, the Kofele Region to the north, the Dodola Region to the east-northeast, and the Nensebo Region to the southeast.