5,000 (1996 R. Blench).
Kebbi state: Ngaski LGA, Lopa, Gafara, and Raishe; Niger state: Magama LGA, Cifamini, Gungun Tagwaye, and Kwanga; Kainji Reservoir eastern shore, from inlet to dam. Ollop dialect: Lopa to Wara.
Ollop. Marginal intelligibility between dialects; use Hausa [hau] instead.
Also use Hausa [hau].
Those in Borgu LGA assimilating to Bisã language and culture.