East side of Lake Torrens south of Edeowie and west of Hookina and Port Augusta; west of Lake Torrens to Island Lagoon and Yardea; at Woorakimba, Hesso, Yudnapinna, Gawler Ranges; south to Kimba, Darke Peak, Cleve, and Franklin Harbour (Tindale 1974). Port Lincoln, to the north beyond Franklin Harbour and the interior (Schurmann 1987:152-3 as quoted in Hercus and Simpson 2001:264).
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).
Schürmann, C, Simpson, J and O'Grady, J. A vocabulary of the Parnkalla language, ASEDA 0256.