Rockbank Mount Cottrell's 2026 population is now estimated at 33,334. In 2001, the population of Rockbank Mount Cottrell was 1,760. Rockbank Mount Cottrell has grown by 972 in the last year, which represents a 3% annual change. These population values and projections come from Australia SA2 population series over 10k (ABS) and World Population Review Internal Projections .
| City | 2026 Pop. ↓ | Growth |
|---|---|---|
| Sydney | 4,976,762 | 1.13% |
| Melbourne | 4,928,443 | 1.41% |
| Brisbane | 2,484,138 | 1.61% |
| Perth | 2,218,366 | 1.6% |
| Adelaide | 1,299,185 | 0.84% |
| Gold Coast | 741,661 | 1.93% |
| Canberra | 523,285 | 1.28% |
| Newcastle | 361,877 | 0.74% |
| Central Coast | 343,965 | 1.1% |
| Sunshine Coast | 313,811 | 1.93% |
| Wollongong | 292,054 | 0.82% |
| Hobart | 205,884 | 0.83% |
| Geelong | 190,619 | 1.1% |
| Townsville | 186,562 | 1.4% |
| Cairns | 163,376 | 1.26% |
| Darwin | 130,746 | 1.32% |
| Ballarat | 113,156 | 1.4% |
| Toowoomba | 112,978 | 0.82% |
| Bendigo | 108,707 | 1.51% |
| Maitland | 97,446 | 1.64% |
