The size of Rendelsham is approximately 78.8 square kilometres. It has 2 parks covering nearly 0.9% of total area. The population of Rendelsham in 2011 was 878 people. By 2016 the population was 179 showing a population decline of 79.6% in the area during that time. The predominant age group in Rendelsham is 50-59 years. Households in Rendelsham are primarily couples with children and are likely to be repaying $1000 - $1399 per month on mortgage repayments. In general, people in Rendelsham work in a managers occupation. In 2011, 76.1% of the homes in Rendelsham were owner-occupied compared with 78.5% in 2016.