The 2026 South Australian House of Assembly election was held on 21 March 2026 to elect all 47 members of the South Australian House of Assembly as part of the 2026 South Australian state election.

Retiring members

Labor Susan Close MP (Port Adelaide) – announced 18 September 2025 Stephen Mullighan MP (Lee) – announced 18 September 2025 Lee Odenwalder MP (Elizabeth) – announced 9 October 2025 Dana Wortley MP (Torrens) – announced 9 October 2025 Leon Bignell MP (Mawson) – announced 27 November 2025 Andrea Michaels MP (Enfield) – announced 30 January 2026

Liberal David Pisoni MP (Unley) – announced 8 October 2024 John Gardner MP (Morialta) – announced 13 December 2024 Matt Cowdrey MP (Colton) – announced 27 June 2025https://www.adelaidenow.com.au/news/south-australia/liberal-frontbencher-matt-cowdrey-to-retire-from-politics-at-next-years-sa-state-election/news-story/559f7b0762c015c8e7d72786533cf7f2

Independent Dan Cregan MP (Kavel) – announced 28 January 2025 Troy Bell MP (Mount Gambier) – resigned 1 September 2025. Seat left vacant.

Overall results

+House of Assembly (IRV) – Turnout 88.7% (CV)PartyPrimary votesSeatsVotes %Swing ()SeatsChange Labor 419,626 37.5 –2.4 34 7 One Nation 256,022 22.9 +20.3 4 4 Liberal 211,551 18.9 –16.8 5 11 Greens 116,283 10.4 +1.3 0  Independent 61,054 5.5 –3.0 4  Family First 19,560 1.8 –1.4 0  Legalise Cannabis 10,881 1.0 New 0  Australian Family 9,298 0.8 +0.6 0  Animal Justice 5,530 0.5 +0.4 0  Real Change 2,965 0.3 +0.2 0  Fair Go 2,746 0.2 New 0  United Voice 2,062 0.2 New 0  National 1,427 0.1 –0.2 0  SA Best 257 0.0 –0.2 0 Total 1,117,714 100.0 47 Informal votes 50,001 4.3 +0.7Turnout 1,167,715 88.7 –0.5Enrolled voters 1,317,186Source: Electoral Commission of South Australia

Two-party-preferred vote In Australian politics, the two-party-preferred vote is the result of an election in which preferences are distributed between the two major parties, being, in South Australia, the Labor Party and the Liberal Party. However, due to the overperformance of One Nation, the Electoral Commission of South Australia did not calculate a state-wide two-party-preferred vote. As such, a number of psephologists and polling firms have estimated the two-party-preferred vote based on known preference flows between parties.

Of the 47 two-candidate-preferred contests, 25 were Labor–One Nation, 13 were Labor–Liberal, four were Liberal–One Nation, two were One Nation–Independent, and there was one matchup each of Labor–Greens, Liberal–Independent, and Labor–Independent.

Antony Green, the ABC's former chief elections analyst, calculated a two-party-preferred vote between Labor and "Non-Labor". This was estimated at 55.7–44.3 in favour of the Labor Party, a 1.1 pp swing towards them since the 2022 election. He noted that given how poorly the Liberals polled, Labor likely would've polled above 58% in a traditional two-party contest. At the time of publication, full preference flow data was not yet available, but the published distribution of preferences had Greens preferences flowing 80–85% to Labor, One Nation preferences flowed 65–70% to Liberal, and Liberal preferences flowing 55–65% to One Nation.

Kevin Bonham estimated both a Labor–Liberal and a Labor–One Nation two-party-preferred vote. In a classic two-party contest, he had Labor winning 57.9–42.1, a swing of 3.3 pp. An estimated "shadow 2PP" had an even larger margin of victory for the Labor Party at 58.2–41.8 over One Nation. He referred to his methodology as the "actual distribution method", where if one of the two-party-preferred sides is excluded during the count, the total up until that point is credited, with any votes beyond that point having their preference flows estimated. These estimations were that in a contest with the Liberal Party, Labor received 27.2% of One Nation preferences, 85.9% of Greens preferences, and 50.8% of independent preferences. In a contest with One Nation, Labor received 33.9% of Liberal preferences, 84.8% of Greens preferences, and 55.9% of Independent preferences.

In their first opinion poll following the state election, DemosAU calculated a two-party-preferred vote between Labor and One Nation of 58.1–41.9. No two-party-preferred was calculated with the Liberal Party, whose preferences were distributed 66.6% in favour of One Nation. Greens preferences were 80.4% in favour of Labor, and "others" were distributed 57.9% to Labor.

+ Preference flow estimates From party Two-party-preferred ALP LIB ONP Antony Green (9 April 2026)  One Nation 31.1% 68.9%   Liberal 34.5% 65.5%  Greens 84.5% 15.5% 80.4% 19.6% Kevin Bonham (10 April 2026)  One Nation 27.2% 72.8%   Liberal 33.9% 66.1%  Greens 85.9% 14.1% 84.8% 15.2%  Independent 50.8% 49.2% 55.9% 44.1% DemosAU (26 June 2026)  Liberal 33.4% 66.6%  Greens 80.4% 19.6%   Others 57.9% 42.1%

Results by district Adelaide

+Distribution of preferences: Adelaide Party Candidate Votes Round 1 Round 2 Round 3 Round 4 Dist. Total Dist. Total Dist. Total Dist. Total Quota (50% + 1) 11,948 LaborLucy Hood 10,189 +54 10,243 +472 10,715 +791 11,506 +4,801 16,307 LiberalJulian Amato 5,084 +71 5,155 +302 5,457 +1,800 7,257 +330 7,587 GreensBronte Colmer 3,531 +27 3,558 +1,138 4,696 +435 5,131 Excluded One NationAoi Baxter 2,771 +137 2,908 +118 3,026 Excluded IndependentKeiran Snape 2,002 +28 2,030 Excluded Australian FamilyDan Casey 317 Excluded

Badcoe

+Distribution of preferences: Badcoe Party Candidate Votes Round 1 Round 2 Round 3 Round 4 Dist. Total Dist. Total Dist. Total Dist. Total Quota (50% + 1) 11,736 LaborJayne Stinson 11,508 +24 11,532 +115 11,647 +917 12,564 +4,136 16,700 One NationDaniel Shepherd 4,181 +27 4,208 +198 4,406 +1,980 6,386 +384 6,770 GreensJosh Andersen-Ward 3,889 +32 3,921 +114 4,035 +485 4,520 Excluded LiberalAmar Singh 3,240 +11 3,251 +131 3,382 Excluded Family FirstRadosav Jovanovic 469 +89 558 Excluded Australian FamilyJonathan Attard 183 Excluded

Black

+Distribution of preferences: Black Party Candidate Votes Round 1 Round 2 Round 3 Round 4 Round 5 Round 6 Dist. Total Dist. Total Dist. Total Dist. Total Dist. Total Dist. Total Quota (50% + 1) 11,966 LaborAlex Dighton 10,286 +8 10,294 +12 10,306 +39 10,345 +467 10,812 +2,344 13,156 +2,491 15,647 One NationPaula Wilson 4,469 +7 4,476 +29 4,505 +133 4,638 +1,267 5,905 +369 6,274 +2,009 8,283 IndependentDavid Speirs 3,317 +7 3,324 +15 3,339 +58 3,397 +545 3,942 +558 4,500 Excluded GreensSarah Luscombe 2,929 +9 2,938 +20 2,958 +47 3,005 +266 3,271 Excluded LiberalRhees Bishop 2,475 +3 2,478 +16 2,494 +51 2,545 Excluded Family FirstDianne Squirrell 271 +32 303 +25 328 Excluded Fair GoJennifer Game 107 +10 117 Excluded Australian FamilyJethro Attard 76 Excluded

Bragg

+Distribution of preferences: Bragg Party Candidate Votes Round 1 Round 2 Round 3 Dist. Total Dist. Total Dist. Total Quota (50% + 1) 12,086 LiberalJack Batty 11,684 +44 11,728 +1,718 13,446 +699 14,145 LaborRick Sarre 6,814 +82 6,896 +316 7,212 +2,813 10,025 GreensSusan Ditter 3,219 +32 3,251 +261 3,512 Excluded One NationRussell Paterson 2,211 +84 2,295 Excluded Australian FamilyRobert Walker 242 Excluded

Chaffey

+Distribution of preferences: Chaffey Party Candidate Votes Round 1 Round 2 Round 3 Round 4 Round 5 Round 6 Round 7 Dist. Total Dist. Total Dist. Total Dist. Total Dist. Total Dist. Total Dist. Total Quota (50% + 1) 11,071 LiberalTim Whetstone 7,839 +17 7,856 +59 7,915 +94 8,009 +163 8,172 +165 8,337 +750 9,087 +3,305 12,392 One NationJenny Troeth 7,506 +26 7,532 +38 7,570 +143 7,713 +105 7,818 +159 7,977 +410 8,387 +1,362 9,749 LaborOscar Harding 3,420 +44 3,464 +7 3,471 +84 3,555 +63 3,618 +612 4,230 +437 4,667 Excluded GreensAlice Kuersch 1,018 +14 1,032 +12 1,044 +113 1,157 +78 1,235 Excluded IndependentJason Perrin 842 +52 894 +35 929 +70 999 +299 1,298 +299 1,597 Excluded Australian FamilyTim Oakley 593 +15 608 +32 640 +68 708 Excluded Legalise CannabisJeff Knipe 550 +13 563 +9 572 Excluded NationalImelda Adamson Agars 190 +2 192 Excluded Independent Jakob Gamertsfelder 183 Excluded

Cheltenham

+Distribution of preferences: Cheltenham Party Candidate Votes Round 1 Round 2 Round 3 Round 4 Round 5 Round 6 Dist. Total Dist. Total Dist. Total Dist. Total Dist. Total Dist. Total Quota (50% + 1) 11,956 LaborJoe Szakacs 11,434 +29 11,463 +34 11,497 +138 11,635 +249 11,884 +799 12,683 +3,345 16,028 One NationMelissa Higgins 5,045 +24 5,069 +87 5,156 +138 5,294 +337 5,631 +1,331 6,962 +920 7,882 GreensSteffi Medrow 3,159 +51 3,210 +254 3,464 +118 3,582 +221 3,803 +462 4,265 Excluded LiberalHelen Pike 2,195 +13 2,208 +53 2,261 +105 2,366 +226 2,592 Excluded IndependentKosta Hadjimarkou 809 +17 826 +22 848 +185 1,033 Excluded Family FirstAlex Tennikoff 569 +86 655 +29 684 Excluded Fair GoKaroline Brown 418 +61 479 Excluded Australian FamilyJohn Martin 281 Excluded

Colton

+Distribution of preferences: Colton Party Candidate Votes Round 1 Round 2 Round 3 Round 4 Round 5 Round 6 Round 7 Dist. Total Dist. Total Dist. Total Dist. Total Dist. Total Dist. Total Dist. Total Quota (50% + 1) 12,418 LaborAria Bolkus 10,988 +24 11,012 +38 11,050 +56 11,106 +51 11,157 +126 11,283 +2,007 13,290 +1,579 14,869 LiberalBec Sutton 6,047 +8 6,055 +24 6,079 +29 6,108 +77 6,185 +193 6,378 +291 6,669 +3,296 9,965 One NationRocco DeAngelis 4,407 +35 4,442 +15 4,457 +52 4,509 +142 4,651 +92 4,743 +132 4,875 Excluded GreensAdelaide Xerri 2,087 +5 2,092 +28 2,120 +122 2,242 +44 2,286 +144 2,430 Excluded IndependentJake Hall-Evans 441 +4 445 +24 469 +33 502 +53 555 Excluded Animal JusticeLili Parsons 309 +4 313 +5 318 Excluded Family FirstMathew Schulz 297 +37 334 +7 341 +26 367 Excluded Real ChangeBrad Lloyd 140 +1 141 Excluded Australian FamilyTony Schirripa 118 Excluded

Croydon

+Distribution of preferences: Croydon Party Candidate Votes Round 1 Round 2 Round 3 Round 4 Round 5 Round 6 Round 7 Dist. Total Dist. Total Dist. Total Dist. Total Dist. Total Dist. Total Dist. Total Quota (50% + 1) 11,529 LaborPeter Malinauskas 12,774 +14 12,788 +14 12,802 +55 12,857 +488 13,345 +345 13,690 +767 14,457 +2,610 17,067 One NationDale Blackeby 2,934 +11 2,945 +17 2,962 +41 3,003 +244 3,247 +78 3,325 +905 4,230 Excluded GreensRuby Dolling 2,686 +8 2,694 +14 2,708 +202 2,910 +103 3,013 +983 3,996 +373 4,369 +1,620 5,989 LiberalMichael Santagata 1,797 +7 1,804 +14 1,818 +20 1,838 +127 1,965 +80 2,045 Excluded Independent SocialistAhmed Azhar 1,308 +7 1,315 +6 1,321 +27 1,348 +138 1,486 Excluded Family FirstHieu Pham 1,017 +9 1,026 +42 1,068 +32 1,100 Excluded Animal JusticeSuzanne Pope 334 +7 341 +36 377 Excluded Australian FamilyJoey Elms 122 +21 143 Excluded United VoiceDaniel Bettinelli 84 Excluded

Davenport

+Distribution of preferences: Davenport Party Candidate Votes Round 1 Round 2 Round 3 Round 4 Round 5 Dist. Total Dist. Total Dist. Total Dist. Total Dist. Total Quota (50% + 1) 12,177 LaborErin Thompson 11,829 +43 11,872 +86 11,958 +249 12,207 +2,601 14,808 +1,363 16,171 One NationJon Howell 4,921 +13 4,934 +202 5,136 +149 5,285 +194 5,479 +2,703 8,182 LiberalTrent Burnard 3,601 +6 3,607 +89 3,696 +131 3,827 +239 4,066 Excluded GreensJohn Photakis 2,737 +7 2,744 +39 2,783 +251 3,034 Excluded IndependentDan Golding 718 +8 726 +54 780 Excluded Family FirstMathew Francis 400 +70 470 Excluded Australian FamilyRachel Smith 147 Excluded

Dunstan