The size of Oakleigh is approximately 3.5 square kilometres. It has 7 parks covering nearly 7.5% of total area. The population of Oakleigh in 2011 was 7,534 people. By 2016 the population was 7,891 showing a population growth of 4.7% in the area during that time. The predominant age group in Oakleigh is 20-29 years. Households in Oakleigh are primarily couples with children and are likely to be repaying $1800 - $2399 per month on mortgage repayments. In general, people in Oakleigh work in a professional occupation. In 2011, 67.3% of the homes in Oakleigh were owner-occupied compared with 64.4% in 2016. Currently the median sales price of houses in the area is $1,388,000.