Share of people served by wastewater treatment systems Japan FY 2013-2022

In the fiscal year 2022, approximately 92.9 percent of the Japanese population was served by wastewater treatment systems, indicating a steady increase since fiscal 2013. Reaching almost 100 percent, Tokyo Prefecture had the highest population share with access to wastewater treatment in that year.

在2022财政年度，日本人口中约有92.9%得到了污水处理系统的服务，这一比例自2013财政年以来呈现稳步增长的趋势。当年，东京都实现了接近100%的污水处理服务覆盖率，成为该年度人口拥有污水处理服务比例最高的地区。