Central Delta languages
Introduction The '''Central Delta languages''' are spoken in Rivers State and Bayelsa State, Nigeria. Ogbia is the most populous, with over 200,000 speakers.The languages are Abua–Odual, Ogbia, Kugbo, Abureni, Obulom, O’chi’chi’, Ogbogolo, Ogbronuagum.
Names and locations Below is a list of language names, populations, and locations from Blench (2019). Language  Cluster  Dialects  Alternate spellings  Own name for language  Endonym(s)  Other names (location-based)  Other names for language  Exonym(s)  Speakers  Location(s)  Notes Abua   Central Abuan, Ẹmughan, Ọtabha (Ọtapha), Okpeḍen   Abuan  Abua     11,000 (1963): estimated 25,000 (Faraclas 1989)  Rivers State, Ahoada LGA   '''''Kolo cluster'''''  Kolo      Ọgbia, Ogbinya    100,000 (1987 UBS)  Rivers State, Brass LGA   Kolo  Kolo   Agholo          Oloiḅiri  Kolo            Anyama  Kolo           no data Obulom    Abuloma        Rivers State, Okrika LGA, Abuloma town   Oḍual   Arughaunya, Aḍibom   Ọḍual  Oḍual    Saka  8,400 (1963); 15,000 (1980 UBS)  Rivers State, Ahoada LGA  (F&J 1940) report 700 speakers, but in the 1970s, Barnwell (p.c.) found only 20 speakers living in a quarter of one town. The Odut are Mbembe speakers, and there is no separate language. Ogbogolo          One town only  Rivers State, Ahoada LGA   Ogbrọnuagụm       Bukuma  Agum   One town only, north of Buguma  Rivers State, Degema LGA   Ọchịchị     Ọchịchị  Ọchịchị     A few speakers; moribund, since speakers have switched to Echie  Rivers State, Etche LGA, towns of Ikwerengwo and Umuebulu   Kụgbọ          2,000 (1973 SIL)  Rivers State, Brass LGA   Abureni      Mini    Mini  3 villages  Rivers State, Brass LGA  no data
References *Blench, Roger. 2008.The Central Delta languages: comparative word list and historical reconstructions.