Part of the East Welega Zone, Jimma Horo was bordered on the south by the East Shewa Zone, on the southwest by Bila Seyo, on the west by Abe Dongoro, on the northwest by Amuru Jarte, on the northeast by Abay Chomen, on the east by Guduru, and on the southeast by Jimma Rare.
Part of the East Welega Zone, Jimma Horo was bordered on the south by the East Shewa Zone, on the southwest by Bila Seyo, on the west by Abe Dongoro, on the northwest by Amuru Jarte, on the northeast by Abay Chomen, on the east by Guduru, and on the southeast by Jimma Rare.