The size of Brookfield is approximately 10.7 square kilometres. It has 10 parks covering nearly 2.7% of total area. The population of Brookfield in 2011 was 6,104 people. By 2016 the population was 9,209 showing a population growth of 50.9% in the area during that time. The predominant age group in Brookfield is 0-9 years. Households in Brookfield are primarily couples with children and are likely to be repaying $1400 - $1799 per month on mortgage repayments. In general, people in Brookfield work in a clerical occupation. In 2011, 75.7% of the homes in Brookfield were owner-occupied compared with 68.1% in 2016. Currently the median sales price of houses in the area is $540,000.