The size of Shelley is approximately 2.1 square kilometres. It has 6 parks covering nearly 8.8% of total area. The population of Shelley in 2011 was 4,380 people. By 2016 the population was 4,519 showing a population growth of 3.2% in the area during that time. The predominant age group in Shelley is 10-19 years. Households in Shelley are primarily couples with children and are likely to be repaying $1800 - $2399 per month on mortgage repayments. In general, people in Shelley work in a professional occupation. In 2011, 70% of the homes in Shelley were owner-occupied compared with 72% in 2016. Currently the median sales price of houses in the area is $877,500.