There are over two thousand fluent speakers in an area roughly bounded by Kakadu National Park to the west, the Arafura Sea to the north, the Blyth River to the east, and the Katherine region to the south.
Kundjeyhmi and Kunwinjku are dialects of Bininj Kunwok, while Jawoyn is a separate language spoken in the southern areas.
[9] As of June 2015, the Gundjeihmi dialect group officially adopted standard Kunwinjku orthography, meaning it would in future be spelt Kundjeyhmi.
[3] Bininj Kunwok is typical of the languages of central Arnhem Land (and contrasts with most other Australian languages) in having a phonemic glottal stop, two stop series (short and long), five vowels without a length contrast, relatively complex consonant clusters in codas (though only single-consonant onsets) and no essential distinction between word and syllable phonotactics.
[3] This is an abnormal vowel inventory for one of the Australian Aboriginal languages, as most of them simply have a three-vowel /i/, /u/, /a/ system with length distinctions.