The size of Macarthur is approximately 1.3 square kilometres. It has 8 parks covering nearly 41.9% of total area. The population of Macarthur in 2011 was 1,460 people. By 2016 the population was 1,430 showing a population decline of 2.1% in the area during that time. The predominant age group in Macarthur is 50-59 years. Households in Macarthur are primarily couples with children and are likely to be repaying $1800 - $2399 per month on mortgage repayments. In general, people in Macarthur work in a professional occupation. In 2011, 92% of the homes in Macarthur were owner-occupied compared with 88.5% in 2016. Currently the median sales price of houses in the area is $970,000.