The size of Shannonvale is approximately 84.6 square kilometres. It has 4 parks covering nearly 82.8% of total area. The population of Shannonvale in 2011 was 361 people. By 2016 the population was 214 showing a population decline of 40.7% in the area during that time. The predominant age group in Shannonvale is 50-59 years. Households in Shannonvale are primarily couples with children and are likely to be repaying $1800 - $2399 per month on mortgage repayments. In general, people in Shannonvale work in a managers occupation. In 2011, 73.8% of the homes in Shannonvale were owner-occupied compared with 87.1% in 2016.