The percentage of Japan's population connected to public sewerage in 2024 is forecasted at 82.3%. From 2024 to 2028, steady annual growth is projected, with approximately 0.47% year-on-year increase. In 2023, actual data showed a slight uptick above previous years, aligning with this upward trend. Over the five-year span from 2024 to 2028, the Compound Annual Growth Rate (CAGR) forecasts a consistent increase of around 0.5% annually. This reflects ongoing efforts to expand infrastructure and public health measures.
Future trends to watch include advancements in sustainable wastewater management practices and policies aimed at increasing environmental resilience, which could further impact sewerage connectivity expansion in Japan beyond 2028.
