The population connected to sewerage with secondary treatment in Australia experienced fluctuations from 2013 to 2023, peaking in 2013 and showing a general declining trend afterward. The value in 2023 stood at 22.85 units of population, indicating a consistent decrease starting from 2017. The year-on-year variation in percentage from 2022 to 2023 was a decrease of 1.04%. The average annual variation over the last five years (CAGR) revealed a decline of 1.45%.
Forecasts suggest this downward trend will continue through 2028, with an expected five-year CAGR of -0.87% and an overall 4.29% decline from 2023 to 2028.
Future trends to watch include advancements in wastewater treatment technologies, potential government policies on environmental sustainability, and demographic shifts impacting urban infrastructure needs.
