DemographicsKirkstall is approximately 73.71 square kilometres. In 2016 the population of Kirkstall was 366. The population is 51% male and 49% female. On average the monthly mortgage repayments in Kirkstall are $1000 to $1399. The most common weekly income bracket is $800 to $999 per week. Weekly rents in the area are on average $0 to $74.