12,000 (1990 SIL).
Guéra Region, Guéra department, Bitkine subprefecture, below Guéra massif: Moukoulou, Séguine, Doli, Morgué, Djarkatché (Mezimi), and Gougué villages.
Doliki, Gugiko, Mezimko, Mokilko, Moriko, Seginki.
All domains. All ages. Low proficiency in Chadian Spoken Arabic [shu].
Gergiko and Gergagi (pl.) are umbrella terms of recent creation to include all villages and dialects of this language, since Mukulu (or Mokilko), which is always used in the literature, properly designates only the principal village and its speech. Traditional religion, Christian, Muslim.