The suburb of Thorneside is approximately 2.6 square kilometres in size. Thorneside has 12 parks covering nearly 7.9% of total area. The population of Thorneside in 2011 was 3,547 people. By 2016 the population was 3,772 showing a population growth of 6.3% in the area during that time. The predominant age group in Thorneside is 50-59 years. Households in Thorneside are primarily childless couples and are likely to be repaying $1800 - $2399 per month on mortgage repayments. In general, people in Thorneside work in a professional occupation. In 2011, 65.8% of the homes in Thorneside were owner-occupied compared with 66% in 2016. The median sales price of houses in the area currently is $520,000.