DemographicsNewstead (NSW) is approximately 86.13 square kilometres. In 2016 the population of Newstead (NSW) was 23. The population is 62% male and 38% female. On average the monthly mortgage repayments in Newstead (NSW) are $0 to $299. The most common weekly income bracket is $1000 to $1249 per week. Weekly rents in the area are on average $0 to $74.