State elections were held in South Australia on 7 March 1959. All 39 seats in the South Australian House of Assembly were up for election. The incumbent Liberal and Country League led by Premier of South Australia Thomas Playford IV defeated the Australian Labor Party led by Leader of the Opposition Mick O'Halloran.
Background.
Labor won two seats at this election, rural Mount Gambier from an Independent and rural Wallaroo from the LCL. Both of these seats had been previously won in by-elections in 1957 and 1958, and Labor retained them.
Notes.
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