13,000,000 (2006 SIL).
3 (Wider communication).Used as an L2 in Rangamati, Bandarban, Cox’ s Bazar, and Chittagong districts primarily for business and market.
Not inherently intelligible with Bengali [ben], although considered a nonstandard Bengali dialect. Dialects form a continuum from north to south, with a larger religious distinction between Muslim and others. Rohingya [rhg] in Myanmar is reportedly similar to the southern dialect of Chittagonian. Lexical similarity: 43%–64% with Bangla [ben].
Home, family, religion. 60% also use Bengali [ben]. Village women without access to TV do not understand Bengali. Educated people understand some Bengali, but are not comfortable using it. Education is in standard Bengali. Used as L2 by Bengali [ben], Chakma [ccp], Marma [rmz], Mru [mro], Rakhine [rki], Rohingya [rhg], Tippera [tpe].
Muslim, Christian, Hindu.