150,000 (1992 CAPRO).
Adamawa state: Lamurde, Numan, Demsa, and Mayobelwa LGAs; Kaduna state: northeast of Kaduna town; Kogi state: confluence of Benue and Niger rivers.
Mulyen (Mulwyin, Mwulyin), Opalo (Opolo), Wa-Duku, Central Bwatiye (Demsa, Demsa Bata). In Bata dialect subgroup. Bacama and Central Bwatiye [bcy] 54%–68% of non-riverine Bata [bta] dialects (Furo and Song); Upriver dialects have contact with downriver dialects due to fishing practices. Lexical similarity: Bacama [bcy] 89% with Central Bwatiye [bcy], 81% with Njoboliyo [bta], 86% with Furo [bta], 84% with Song Bata [bta].
Latin script [Latn].
Bacama fishermen migrate long distances down the Benue River with camps as far as the confluence. Bacama are joined with the Bata [bta] in the Bwaatye Association. Christian.