36,000 (2005 SIL).
Mara Region, Serengeti district, Gurumeti division.
Ikoma (Kiikoma), Isenye (Isenyi, Issenye, Kiisenye, Kiissenye Ikisenyi), Nata (Kinata, Kinatta, Natta). Lexical similarity: 81% with Zanaki [zak], 73% with Ngoreme [ngq], 68% with Kuria [kuj], 44% with Gusii [guz]. Dialect similarity: Ikoma 85% with Isenye and 89% with Nata; Isenye and Nata share 88%.
7 vowel system
Strong Swahili [swh] use among Nata dialect speakers. Many Nata children learn Swahili as L1. All domains, if no speakers of other languages are present. All ages.
Ikoma, Nata and Isenye are 3 different ethnic groups. They consider their 3 speech varieties different, but similar enough to use the same written material. Nata seems more endangered with many children speaking more Swahili [swh] than Nata. Christian, Muslim, traditional religion.