Bumbunga is a locality in the Mid North of South Australia 125 kilometres (78 mi) north of Adelaide. It lies 5 kilometres (3.1 mi) east of Lake Bumbunga.
According to anthropologist Norman Tindale the name was derives from parnpangka, the local indigenous (Kaurna) term for 'rain water lake', referring to Lake Bumbunga.
The town administration falls under the control of the Wakefield Regional Council for local governance. Bumbunga lies in the state electoral district of Frome and in the federal electoral division of Grey.
The South Australian Government's Atlas of South Australia describes the Bumbunga environmental subregion as being a low-lying (mean altitude 130 metres (430 ft) alluvial plains "with salt lakes and occasional dunes." The atlas further describes the subregion as having "grassland cover used for rotation cereal cultivation and livestock grazing" and "low shrubland used for livestock grazing" on salt lake margins.
The secessionist micronation Province of Bumbunga was located in Bumbunga for approximately a decade in the 1970s and 1980s.