The following classification is taken from Blench (2008). The languages are not closely related and are morphologically quite diverse due to different contact situations; given the poor state of their description, their relationship is provisional.
Ethnologue scatters these languages throughout Plateau: Hasha and Sambe with Eggon (Southern branch), and Alumu–Tesu and Toro as two independent branches.
Names and locations
Below is a list of language names, populations, and locations from Blench (2019).
|Language||Cluster||Alternate spellings||Own name for language||Endonym(s)||Other names (location-based)||Speakers||Location(s)|
|Akpondu (extinct)||Akpondu||1 (2005). The last speaker was only a remember and can only recall fragmentary vocabulary||Plateau State|
|Sambe||Sambe||Sambe||2 (2005)||Kaduna State|
|Alumu-Tәsu cluster||Alumu-Tәsu||Arum–Chessu||Nasarawa State, Akwanga LGA|
|Alumu||Alumu-Tәsu||Arum||Alumu||Seven villages. ca. 5000 (Blench 1999)|
|Tәsu||Alumu-Tәsu||Chessu||Two villages. ca. 1000 (Blench 1999)|
|Hasha||Iyashi, Yashi||400 (SIL); 3000 (Blench est. 1999)||Nasarawa State, Akwanga LGA|
|Toro||Tɔrɔ||Turkwam||6,000 (1973 SIL). 2000 (Blench 1999). The Toro people live in one large village, Turkwam, some two km. southeast of Kanja on the Wamba-Fadan Karshi road||Nasarawa State, Akwanga LGA|
|Nigbo (extinct)||near Agameti on the Fadan Karshi-Wamba road.|
- Blench (2008) Prospecting proto-Plateau. Manuscript.
- Roger Blench, Alumic languages (wordlists)