As of 2023, the population connected to the urban wastewater collection system in Germany stood at 97.7%. The forecasts from 2024 to 2028 indicate a steady growth, starting at 97.8% in 2024 and reaching 98.16% by 2028. The year-on-year increase from 2024 to 2025 is 0.10%, and the following years reflect a consistent upward trend increasing by approximately 0.09% annually. The compound annual growth rate (CAGR) over the five-year forecast period is around 0.089%.

Future trends to watch for:

Efforts to further integrate rural areas into the wastewater collection system as urban areas are close to full connectivity.
Technological innovations in wastewater management could potentially accelerate connectivity rates.
Environmental regulations may push for higher standards, influencing infrastructure investment.