26,000 (2002 SIL).
Far North Region, Mayo-Sava division, Tokombere subdivision, east edge of Mandara mountains, north of Maroua. 16 villages.
Gemzek (Gaduwa), Mineo (Minew), Zulgo (Zelgwa, Zoulgo, Zulgwa). Slight dialect differences between villages.
If Zulgo is used in church, interpretation is not given into Gemzek. Fulfulde [fub] often used in church, but interpreted into Gemzek or Zulgo.