The size of Glenmaggie is approximately 226.2 square kilometres. It has 7 parks covering nearly 31.5% of total area. The population of Glenmaggie in 2011 was 291 people. By 2016 the population was 259 showing a population decline of 11.0% in the area during that time. The predominant age group in Glenmaggie is 60-69 years. Households in Glenmaggie are primarily childless couples and are likely to be repaying $1000 - $1399 per month on mortgage repayments. In general, people in Glenmaggie work in a community and personal service occupation. In 2011, 90.3% of the homes in Glenmaggie were owner-occupied compared with 84.9% in 2016. Currently the median sales price of houses in the area is $379,500.