DemographicsWerrimull is approximately 728.37 square kilometres. In 2016 the population of Werrimull was 112. The population is 56% male and 44% female. On average the monthly mortgage repayments in Werrimull are $0 to $299. The most common weekly income bracket is $150 to $299 per week. Weekly rents in the area are on average $0 to $74.