The size of Ferny Grove is approximately 3.8 square kilometres. It has 18 parks covering nearly 15.5% of total area. The population of Ferny Grove in 2011 was 5,609 people. By 2016 the population was 5,700 showing a population growth of 1.6% in the area during that time. The predominant age group in Ferny Grove is 40-49 years. Households in Ferny Grove are primarily couples with children and are likely to be repaying $1800 - $2399 per month on mortgage repayments. In general, people in Ferny Grove work in a professional occupation. In 2011, 77.8% of the homes in Ferny Grove were owner-occupied compared with 76.5% in 2016. Currently the median sales price of houses in the area is $789,000.