About the forecast areas
The 2019 population forecast for Rottnest Island is 342, and is forecast to grow to 349 by 2041.
Rottnest Island is 18 kilometres off the coast. The island is 11 kilometres long, and 4.5 kilometres at its widest point. Its total land area is 19 square kilometres
The inclusion of the area serves to ensure that the population for the entire City of Cockburn is comparable with ABS and State population estimates