The size of Heathfield is approximately 5.2 square kilometres. It has 7 parks covering nearly 20.1% of total area. The population of Heathfield in 2011 was 1,031 people. By 2016 the population was 1,012 showing a population decline of 1.8% in the area during that time. The predominant age group in Heathfield is 50-59 years. Households in Heathfield are primarily couples with children and are likely to be repaying $1800 - $2399 per month on mortgage repayments. In general, people in Heathfield work in a professional occupation. In 2011, 87.8% of the homes in Heathfield were owner-occupied compared with 87.3% in 2016. Currently the median sales price of houses in the area is $945,250.