Population total all countries: 17,467,900.
Member languages are: Borana-Arsi-Guji Oromo [gax], Eastern Oromo [hae], Orma [orc] (Kenya), West Central Oromo [gaz]
Member languages are: Borana-Arsi-Guji Oromo [gax], Eastern Oromo [hae], Orma [orc] (Kenya), West Central Oromo [gaz]