The size of Leonay is approximately 2.2 square kilometres. It has 2 parks covering nearly 3.4% of total area. The population of Leonay in 2011 was 2,420 people. By 2016 the population was 2,525 showing a population growth of 4.3% in the area during that time. The predominant age group in Leonay is 40-49 years. Households in Leonay are primarily couples with children and are likely to be repaying $1800 - $2399 per month on mortgage repayments. In general, people in Leonay work in a professional occupation. In 2011, 87% of the homes in Leonay were owner-occupied compared with 87% in 2016. Currently the median sales price of houses in the area is $900,000.