69.9 % of residents were over 25 years in 2011 , compared to the Australian average of 67.4 % ; .
30.1 % were younger than 25 years , compared to the Australian average of 32.6 % .
69.9 % of residents were over 25 years in 2011 , compared to the Australian average of 67.4 % ; and 30.1 % were younger than 25 years , compared to the Australian average of 32.6 % .