The size of Gumdale is approximately 4.5 square kilometres. It has 3 parks covering nearly 3.2% of total area. The population of Gumdale in 2011 was 949 people. By 2016 the population was 2,116 showing a population growth of 123.0% in the area during that time. The predominant age group in Gumdale is 10-19 years. Households in Gumdale are primarily couples with children and are likely to be repaying $3000 - $3999 per month on mortgage repayments. In general, people in Gumdale work in a professional occupation. In 2011, 84.6% of the homes in Gumdale were owner-occupied compared with 87.3% in 2016. Currently the median sales price of houses in the area is $790,000.