The size of Darley is approximately 26.7 square kilometres. It has 30 parks covering nearly 8.3% of total area. The population of Darley in 2011 was 7,417 people. By 2016 the population was 8,386 showing a population growth of 13.1% in the area during that time. The predominant age group in Darley is 0-9 years. Households in Darley are primarily couples with children and are likely to be repaying $1400 - $1799 per month on mortgage repayments. In general, people in Darley work in a trades occupation. In 2011, 81.5% of the homes in Darley were owner-occupied compared with 78.7% in 2016. Currently the median sales price of houses in the area is $620,000.