The share of Japan’s population connected to tertiary wastewater treatment was 36.89% in 2023. From 2024, the forecast indicates a consistent year-on-year increase: 2.57% in 2024, 2.59% in 2025, 2.50% in 2026, 2.39% in 2027, and 2.28% in 2028. This results in a Compound Annual Growth Rate (CAGR) of approximately 2.46% over the period.
Future trends to watch for include advancements in wastewater treatment technologies, government policies, and public awareness campaigns which could accelerate growth. Additionally, population dynamics and urbanization rates will also impact these forecasts. Monitoring these factors will be crucial for accurate future projections.
