DemographicsBirriwa is approximately 77.18 square kilometres. In 2016 the population of Birriwa was 49. The population is 54% male and 46% female. On average the monthly mortgage repayments in Birriwa 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.
DescriptionBirriwa is a locality in central New South Wales, Australia. Birriwa is located on the Castlereagh Highway in the central west of New South Wales between Gulgong and Dunedoo. A large grain silo remains in operation in Birriwa where the railway line crosses the Castlereagh Highway at a level crossing.