South Australia Election Simulation

Roy Morgan – 2026-02-27

Majority threshold: 24 seats

ALP

Avg: 28.8

Majority chance: 99.3%

90% range: 25 – 33

FP: 35%

Coalition

Avg: 11.3

Majority chance: 0.0%

90% range: 7 – 16

FP: 16.5%

Greens

Avg: 0.2

90% range: 0 – 1

FP: 11%

PHON

Avg: 1.0

90% range: 0 – 4

FP: 28%

What the heck is going on here?

This is a very simple simulation of the upcoming South Australia State election

  • The election is simulated 50K times adding in random polling errors

  • 100 simulated elections are shown on a line graph, sorted from highest incumbant seats to least incumbant seats
  • Preference flows are correct for the 2 major parties, adjustments are needed for minor parties and others
  • This model is limited and likely under predicting crossbench seats
  • Seemingly paradoxically I think that it's also overestimating the chance of a hung parliament
Danno 17/02/2026