The size of Melba is approximately 2.3 square kilometres. It has 19 parks covering nearly 20.8% of total area. The population of Melba in 2011 was 3,200 people. By 2016 the population was 3,147 showing a population decline of 1.7% in the area during that time. The predominant age group in Melba is 0-9 years. Households in Melba are primarily couples with children and are likely to be repaying $1800 - $2399 per month on mortgage repayments. In general, people in Melba work in a professional occupation. In 2011, 77% of the homes in Melba were owner-occupied compared with 76% in 2016. Currently the median sales price of houses in the area is $816,986.