DemosAU SA State Polling Results - March 2026
Final pre-election SA State poll of 1,242 South Australians. Primary vote: Labor 37%, One Nation 23%, Liberal 17%, Greens 11%. Fieldwork: 12–18 March 2026.
· 18 March 2026
DemosAU and Ace Strategies final pre-election SA State voting intention poll, conducted 12–18 March 2026 — days before the 21 March 2026 state election.
Primary vote: Labor 37%, One Nation 23%, Liberal 17%, Greens 11%, Other 12%.
The surge in One Nation support means the Liberals risk being replaced as the official opposition. Labor's vote has fallen during the campaign as One Nation's momentum has grown.
Preferred Premier: Peter Malinauskas (Labor) 56%, Ashton Hurn (Liberal) 21%.
State direction: 44% believe SA is heading in the right direction, 36% wrong direction.
Sample: 1,242 South Australians. Effective sample: 836. Effective margin of error: ±3.4%.
How this poll was conducted
- Fieldwork
- 12–18 March 2026
- Sample
- 1,242 respondents (836 effective, after weighting)
- Margin of error
- ±3.4%
- Population
- South Australia
- Method
- Internet panel survey of South Australians aged 18+ eligible to vote, rim weighted by age × gender, education, residential tenure, region, 2025 federal vote and left–right self-identification. State voting intention was the first substantive question after demographics.