The share of the population connected to tertiary wastewater treatment in Austria has shown consistent growth from 93.8% in 2014 to 96.82% in 2023. The year-on-year variations indicate modest but steady increases, with a notable uptick in recent years. Over the past two years (2021-2023), the share increased by approximately 1.47%. Looking at a broader horizon, the compound annual growth rate (CAGR) over the last five years has been 0.36%, signifying steady progress.

Future trends to watch for:

Technological advancements in wastewater treatment that could further enhance efficiency and coverage.
Government policies and regulations aimed at improving environmental standards.
Potential impacts of population growth and urbanization on the wastewater treatment infrastructure.