The size of Byrneside is approximately 33.3 square kilometres. It has 2 parks covering nearly 0.1% of total area. The population of Byrneside in 2011 was 291 people. By 2016 the population was 151 showing a population decline of 48.1% in the area during that time. The predominant age group in Byrneside is 40-49 years. Households in Byrneside are primarily childless couples and are likely to be repaying under $300 per month on mortgage repayments. In general, people in Byrneside work in a managers occupation. In 2011, 78.8% of the homes in Byrneside were owner-occupied compared with 86% in 2016.