The size of Rosa Glen is approximately 66.3 square kilometres. It has 5 parks covering nearly 2.6% of total area. The population of Rosa Glen in 2011 was 331 people. By 2016 the population was 153 showing a population decline of 53.8% in the area during that time. The predominant age group in Rosa Glen is 60-69 years. Households in Rosa Glen are primarily childless couples and are likely to be repaying over $4000 per month on mortgage repayments. In general, people in Rosa Glen work in a managers occupation. In 2011, 68.2% of the homes in Rosa Glen were owner-occupied compared with 70.6% in 2016.