The size of Gembrook is approximately 201.9 square kilometres. It has 6 parks covering nearly 68.2% of total area. The population of Gembrook in 2011 was 2,148 people. By 2016 the population was 2,339 showing a population growth of 8.9% in the area during that time. The predominant age group in Gembrook is 40-49 years. Households in Gembrook are primarily couples with children and are likely to be repaying $1800 - $2399 per month on mortgage repayments. In general, people in Gembrook work in a trades occupation. In 2011, 88.2% of the homes in Gembrook were owner-occupied compared with 84.8% in 2016. Currently the median sales price of houses in the area is $828,500.