The size of Somerville is approximately 38.4 square kilometres. It has 26 parks covering nearly 1.2% of total area. The population of Somerville in 2011 was 10,730 people. By 2016 the population was 11,340 showing a population growth of 5.7% in the area during that time. The predominant age group in Somerville is 50-59 years. Households in Somerville are primarily couples with children and are likely to be repaying $1800 - $2399 per month on mortgage repayments. In general, people in Somerville work in a trades occupation. In 2011, 78.2% of the homes in Somerville were owner-occupied compared with 77.3% in 2016. Currently the median sales price of houses in the area is $792,500.