The share of the Australian population connected to tertiary wastewater treatment rose from 47.64% in 2013 to 54.24% in 2023. The most recent year-on-year increase was 1.4%, while the annual growth rate over the past two years was 1.7%. The 5-year CAGR has been 1.73%. The forecast for the coming five years predicts a steady increase, with the rate projected to reach 57.87% by 2028, achieving a forecasted 5-year growth rate of 5.23% and a CAGR of 1.02%.
Future trends to watch for include advancements in wastewater treatment technologies, policy changes aimed at improving environmental sustainability, and increasing investments in infrastructure aimed at expanding access to tertiary treatment facilities.
