Provides two estimates (high series and low series) of Mutitjulu's population using a procedure that derives the future population from mathematical projections of the Ngaanyatjarra-Pitjantjatjara-Yankunytjatjara regional population;; projection methodologies;; key determinants of future population growth;; factors such as the growth of Mutitjulu outstations may limit the future population of Mutitjulu to a ceiling of 850 to 890 people