Q. To what extent would you support or oppose Australia becoming a republic with an Australian head of state?
| Mar’21 | Nov’18 | May’18 | Jan’18 | Jan’17 | |
| TOTAL: Support | 48% | 44% | 48% | 44% | 44% |
| TOTAL: Oppose | 28% | 32% | 30% | 29% | 30% |
| Unsure | 25% | 24% | 22% | 26% | 26% |
| Base (n) | 1,100 | 1,028 | 1,025 | 1,038 | 1,015 |
| Total | Gender | Age Group | Federal Voting Intention | |||||||||
| Male | Female | 18-34 | 35-54 | 55+ | Labor | TOTAL: Coalition | Greens | TOTAL: Other | ||||
| Strongly oppose | 16% | 18% | 14% | 9% | 14% | 23% | 14% | 20% | 6% | 23% | ||
| Somewhat oppose | 12% | 12% | 12% | 12% | 12% | 12% | 10% | 17% | 14% | 9% | ||
| Somewhat support | 24% | 23% | 26% | 27% | 24% | 22% | 26% | 25% | 23% | 19% | ||
| Strongly support | 23% | 32% | 15% | 18% | 25% | 26% | 27% | 22% | 29% | 26% | ||
| Unsure | 25% | 16% | 33% | 33% | 25% | 17% | 23% | 17% | 28% | 24% | ||
| TOTAL: Oppose | 28% | 29% | 26% | 21% | 26% | 35% | 25% | 37% | 20% | 31% | ||
| TOTAL: Support | 48% | 55% | 41% | 45% | 49% | 48% | 52% | 47% | 52% | 45% | ||
| Base (n) | 1,100 | 539 | 561 | 332 | 382 | 386 | 382 | 389 | 92 | 122 | ||