The size of Rowville is approximately 21.7 square kilometres. It has 29 parks covering nearly 9% of total area. The population of Rowville in 2011 was 34,145 people. By 2016 the population was 33,689 showing a population decline of 1.3% in the area during that time. The predominant age group in Rowville is 50-59 years. Households in Rowville are primarily couples with children and are likely to be repaying $1800 - $2399 per month on mortgage repayments. In general, people in Rowville work in a professional occupation. In 2011, 84.6% of the homes in Rowville were owner-occupied compared with 82.4% in 2016. Currently the median sales price of houses in the area is $1,042,000.