The size of Robertson is approximately 1.7 square kilometres. It has 7 parks covering nearly 1.7% of total area. The population of Robertson in 2011 was 4,867 people. By 2016 the population was 4,987 showing a population growth of 2.5% in the area during that time. The predominant age group in Robertson is 20-29 years. Households in Robertson are primarily couples with children and are likely to be repaying $1800 - $2399 per month on mortgage repayments. In general, people in Robertson work in a professional occupation. In 2011, 60.3% of the homes in Robertson were owner-occupied compared with 60.4% in 2016. Currently the median sales price of houses in the area is $1,355,500.