The size of Kudardup is approximately 57.9 square kilometres. It has 1 park covering nearly 0.1% of total area. The population of Kudardup in 2011 was 405 people. By 2016 the population was 78 showing a population decline of 80.7% in the area during that time. The predominant age group in Kudardup is 50-59 years. Households in Kudardup are primarily childless couples and are likely to be repaying $1000 - $1399 per month on mortgage repayments. In general, people in Kudardup work in a managers occupation. In 2011, 66.9% of the homes in Kudardup were owner-occupied compared with 59% in 2016.