Centre region: Lekié division, Sa’a subdivision, Nkolebassimbi and Nkolndzomo villages; Mbam-and-Inoubou division, north of the Sanaga river.
The Mangisa people reportedly speak 2 languages: Mengisa [mct], and Leti. However the linguistic context is rather complex and a very thorough sociolinguistic survey needs to be done. Most of the Mangisa people speak Mengisa; a percentage of them use Leti as a ‘secret language´, but there is a smaller population of the Mangisa who speak Leti as their mother tongue (2014 SIL). Second language only. Also use French [fra], Mengisa [mct], Tuki [bag].
Ethnically, Leti speakers consider themselves Mengissa people, even though their language is very different from Mengisa [mct], the other language spoken by their ethnic group.