The size of Hellyer is approximately 7.8 square kilometres. It has 5 parks covering nearly 12.3% of total area. The population of Hellyer in 2011 was 302 people. By 2016 the population was 158 showing a population decline of 47.7% in the area during that time. The predominant age group in Hellyer is 60-69 years. Households in Hellyer are primarily childless couples and are likely to be repaying $1000 - $1399 per month on mortgage repayments. In general, people in Hellyer work in a managers occupation. In 2011, 77.2% of the homes in Hellyer were owner-occupied compared with 86.4% in 2016. Currently the median sales price of houses in the area is $292,500.