DemographicsStanhope (NSW) is approximately 38.58 square kilometres. In 2016 the population of Stanhope (NSW) was 144. The population is 48% male and 52% female. On average the monthly mortgage repayments in Stanhope (NSW) are $4000+. The most common weekly income bracket is $2000 to $2999 per week. Weekly rents in the area are on average $275 to $349.