DemographicsNiangala is approximately 691.84 square kilometres. In 2016 the population of Niangala was 121. The population is 51% male and 49% female. On average the monthly mortgage repayments in Niangala are $0 to $299. The most common weekly income bracket is $650 to $799 per week. Weekly rents in the area are on average $0 to $74.