[2][3] The language is spoken solely in Nigeria, and had approximately 900 native speakers in 1993.
Ju is part of the Guruntum (Gurdung according to the work of Roger Blench) group of the South Bauchi language group, and is thus similar to the Guruntum, Tala, and Zangwal languages.
To the east, Ju borders the sprachbund of the Dulbu language.
[5] Information on the number of speakers of the Ju language is varied: in 1971, Ju had around 150 speakers,[6] and Ethnologue measured 900 in 1993.
However, the Joshua Project, has reported that Ju is used solely among the older generation, while the youth are switching to Hausa.