They fall into two clusters, East and West, with a limited degree of mutual intelligibility between members of each cluster. The Ogoni think of the cluster members as separate languages, however.
The classification of the Ogoni languages is as follows:
East: Khana and Tẹẹ, with around 1,800,000 speakers between them, and Gokana, with about 250,000.
West: Eleme, with about 90,000 speakers, and Baan, with around 50,500.
Names and locations
Below is a list of language names, populations, and locations from Blench (2019).[1]
^Blench, Roger (2019). An Atlas of Nigerian Languages (4th ed.). Cambridge: Kay Williamson Educational Foundation.
^Talbot, P. Amaury 1926. The peoples of Southern Nigeria. A sketch of the history, ethnology and languages with an abstract of the 1923 census. 4 vols. London.