DemographicsWarrah Ridge is approximately 217.5 square kilometres. In 2016 the population of Warrah Ridge was 99. The population is 46% male and 54% female. On average the monthly mortgage repayments in Warrah Ridge are $0 to $299. The most common weekly income bracket is $300 to $399 per week. Weekly rents in the area are on average $275 to $349.