The ZWI is a new indicator to measure and compare virgin material replacement by urban zero waste management systems. In addition, the ZWI quantifies energy, material and water conservation through recycling efforts rather than simply measuring waste diverted from landfills. In the current study, waste management performance in Adelaide during the years 2003-2010 is analyzed using the proposed Zero Waste Index tool and thereby Adelaide���s performance in waste management in 2015 and 2020 is predicted. The study indicates that waste composting is increasing significantly in Adelaide and by 2015 the amount of waste composted should be higher than that going to landfill