... in the "Sandy country" (Yerongpan) between Brisbane and Ipswich (Lauterer 1895 P 6088). Brisbane River from the Cleveland district inland to the Dividing Range about Gatton; north to near Esk; at Ipswich (Tindale 1974). Ipswich and the districts to the south (Fassifern) and west (Lockyer), as far as afield as Cunningham's Gap in the Fassifern District and Murphy's Creek at the head of the Lockyer Creek (Steele 1984:85 citing Meston).
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).