... much of the Gibson, Little Sandy and Great Sandy deserts in Western Australia (Davenport 2005). Contemporary location: ... in and around the Gibson and Great Sandy Desert area of Western Australia. The communities where a significant number of Martu Wangka speakers live are Jigalong, Parnngurr, Punmu, Purntawari, Newman and Nullagine. (Marsh 1992:9). Jigalong and all desert communities (Dixon 2011:51).
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).