The size of Warrenbayne is approximately 129.3 square kilometres. It has 8 parks covering nearly 20.9% of total area. The population of Warrenbayne in 2011 was 205 people. By 2016 the population was 134 showing a population decline of 34.6% in the area during that time. The predominant age group in Warrenbayne is 60-69 years. Households in Warrenbayne are primarily childless couples and are likely to be repaying $300 - $449 per month on mortgage repayments. In general, people in Warrenbayne work in a managers occupation. In 2011, 89.9% of the homes in Warrenbayne were owner-occupied compared with 90.9% in 2016.