The size of Petrudor is approximately 284.7 square kilometres. The population of Petrudor in 2006 was 342 people. By 2011 the population was 257 showing a population decline of 24.9% in the area during that time. The predominant age group in Petrudor is 50-59 years. Households in Petrudor are primarily couples with children and are likely to be repaying $1400 - $1799 per month on mortgage repayments. In general, people in Petrudor work in a managers occupation. In 2006, 75.6% of the homes in Petrudor were owner-occupied compared with 88.8% in 2011.