The size of Glendevie is approximately 11.2 square kilometres. It has 5 parks covering nearly 29.5% of total area. The population of Glendevie in 2011 was 350 people. By 2016 the population was 59 showing a population decline of 83.1% in the area during that time. The predominant age group in Glendevie is 40-49 years. Households in Glendevie are primarily childless couples and are likely to be repaying under $300 per month on mortgage repayments. In general, people in Glendevie work in a trades occupation. In 2011, 87.3% of the homes in Glendevie were owner-occupied compared with 96.3% in 2016.