This election features 436 candidates across both houses, the most in the state's history. South Australian voters are about to encounter the most crowded ballot papers of any election in the state's past, and with that complexity comes unpredictability.
On the surface, the race looks settled. The Labor Party is set for a landslide victory, with incumbent Labor government, led by Premier Peter Malinauskas, seeking a second four-year term in government. Polling has been consistent; the ALP's two-party preferred support has increased since 2022 and is far ahead of the L-NP: ALP 61% up 6.4 percentage points from the 2022 State Election.
But the real contest lies beneath the headline result. Five parties, Labor, Liberal, the Greens, One Nation, and the Australian Family Party, are contesting all 47 lower house districts. One Nation has emerged as the most dramatic shift, with One Nation on 28 per cent, up 25.4 per cent from the 2022 State Election. Yet this surge masks a critical weakness: while One Nation attracts primary votes, it struggles in two-party preferred contests where voter preferences flow overwhelmingly to Labor.
The real wildcards are the independents defending seats. Independent MP Fraser Ellis holds Narungga, a Yorke peninsula based seat, elected as a Liberal in 2018 but disendorsed after the parliamentary allowances scandal and re-elected as an Independent in 2022. Stuart runs north from Port Pirie and is a vast outback seat covering around half of the state; the sitting MP since 2022 is Independent Geoff Brock. Brock served as the Minister for Local Government, Minister for Regional Roads and Minister for Veterans Affairs in the Malinauskas Labor cabinet from 2022 to 2024.
Both independents hold seats where they have more than doubled their Liberal margins through sustained local representation. Electoral reform came into effect on 1 July 2025, introducing a ban on political donations to political parties, candidates, members of Parliament, and third parties. Instead, parties and individuals will receive public funding, which affects how minor parties and independents compete financially.
The fragmentation of the conservative vote presents a tactical problem the Liberal Party must navigate. A majority of candidates are from minor right-wing parties, which would mostly disadvantage the Liberal Party as some preferences will leak away to Labor, who don't have to contend with a similar fracturing of support. This preference split directly advantages Labor in lower house contests where multiple conservative candidates compete.
Upper house races tell a different story. All 47 seats in the House of Assembly are up for election, along with 11 of the 22 seats in the Legislative Council. The proportional voting system there rewards minor parties and independents more generously. Tammy Franks, a Greens MLC, announced in September 2024 that she would run as an independent candidate for the Legislative Council on 9 February 2026. Jing Lee, having quit the Liberal Party in January 2025, is seeking re-election under the Better Communities banner after being born in Malaysia and entering parliament in 2010.
The historic scale of candidacy reflects broader frustration with both major parties. Of the 436 candidates, 268 are men, 164 are women, with four unspecified. Yet for most observers, polling suggests Labor will govern alone, and the question becomes whether independents and minor party members can claim enough seats to shape legislative outcomes on confidence and supply.