The size of Modbury is approximately 3.3 square kilometres. It has 13 parks covering nearly 9.2% of total area. The population of Modbury in 2011 was 4,924 people. By 2016 the population was 5,233 showing a population growth of 6.3% in the area during that time. The predominant age group in Modbury is 30-39 years. Households in Modbury are primarily childless couples and are likely to be repaying $1400 - $1799 per month on mortgage repayments. In general, people in Modbury work in a professional occupation. In 2011, 66.2% of the homes in Modbury were owner-occupied compared with 64.9% in 2016. Currently the median sales price of houses in the area is $487,500.