In 2018, 95.9% of the population were connected to municipal sewage treatment plants.
The indicated values refer to municipal sewage treatment plants >50 EW60 (population equivalent).
The increases of the past few years were the consequence of the connection of rural areas due to improved technical possibilities and due to increased urbanisation.
The wastewater disposal of the remaining population for example from scattered settlements takes place via cesspits and domestic sewage treatment plants.
The length of the Austrian sewer system is estimated to amount to about 92,800 km.