DemographicsLimestone (NSW) is approximately 112.53 square kilometres. In 2016 the population of Limestone (NSW) was 9. The population is 0% male and 100% female. On average the monthly mortgage repayments in Limestone (NSW) 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.