DemographicsWoorndoo is approximately 318.3 square kilometres. In 2016 the population of Woorndoo was 169. The population is 55% male and 45% female. On average the monthly mortgage repayments in Woorndoo are $0 to $299. The most common weekly income bracket is $300 to $399 per week. Weekly rents in the area are on average $0 to $74.