Nhangu (Ngangu'mi ~ Nhangu'mirri) is described in the online Yolngu Matha dictionary as a language spoken by Bararrngu N129, Bararrpararr N228, Gamalangga N100, Golpa N130, Gurryindi N212, Yalukal N107 and Yan-nhangu N72 clans. Clans affiliated with Nhangu language include Golpa N130; Bararrpararr N228; Bararrngu N129 and Yan-nhangu N72. For Yolngu language groups and clans see Yolngu Matha N230. For Nhangu (N211), Schebeck includes the same clans and adds Walamangu N79 (2011: 15-16).
Wessel Islands east of Brown Strait; on Cunningham Islands; at Elcho Island, Drysdale Island, Mooroonga and Yabooma islands in the Crocodile group; on Banyan Island at the mouth of the Woolen River (Tindale 1974).
Speaker numbers were measured differently across the censuses and various other sources listed in AUSTLANG. You are encouraged to refer to the sources.
Speaker numbers for ‘NILS 2004’ and ‘2005 estimate’ come from 'Table F.3: Numbers of speakers of Australian Indigenous languages (various surveys)' in 'Appendix F NILS endangerment and absolute number results' in McConvell, Marmion and McNicol 2005, pages 198-230 (PDF, 2.5MB).