In Cameroon, Hdi is only spoken in one village on the Nigerian border, namely Tourou (arrondissement of Mokolo, department of Mayo-Tsanaga, Far North Region) by 1000 speakers. It is mainly spoken in Nigeria. The Hdi and Mabas languages are closely related, but are distinct languages.[2]
References
^Hdi at Ethnologue (18th ed., 2015) (subscription required)
^Binam Bikoi, Charles, ed. (2012). Atlas linguistique du Cameroun (ALCAM) [Linguistic Atlas of Cameroon]. Atlas linguistique de l'Afrique centrale (ALAC) (in French). Vol. 1: Inventaire des langues. Yaoundé: CERDOTOLA. ISBN9789956796069.