The size of Werribee is approximately 42.7 square kilometres. It has 129 parks covering nearly 5.9% of total area. The population of Werribee in 2011 was 37,737 people. By 2016 the population was 40,344 showing a population growth of 6.9% in the area during that time. The predominant age group in Werribee is 20-29 years. Households in Werribee are primarily couples with children and are likely to be repaying $1400 - $1799 per month on mortgage repayments. In general, people in Werribee work in a clerical occupation. In 2011, 68.6% of the homes in Werribee were owner-occupied compared with 65.4% in 2016. Currently the median sales price of houses in the area is $580,000.