Pimba was originally established as a construction camp for the transcontinental railway in the early 20th century and was retained as a railway siding. It is reported as being surveyed as a township during the 1960s and was gazetted as a locality in August 2004 under the Geographical Names Act 1991 with creation of boundaries along with the retention of the "long established name".[9][1][3]
^ abKentish, P.M. (29 July 2004). "GEOGRAPHICAL NAMES ACT 1991 Notice to Assign Names and Boundaries to Places"(PDF). The South Australian Government Gazette. Government of South Australia. p. 2671. Retrieved 16 April 2019. assign the names TARCOOLA, WOOMERA, PIMBA and IRON KNOB, to those areas Out of Councils and shown numbered 1 to 4 on Rack Plan 857 (Sheet 1).