Wastewater - connection rates to treatment — Public total treatment in Japan
Japan: Wastewater - connection rates to treatment — Public total treatment was 81.1 Percentage of population in 2024. ▲ Rising
Wastewater - connection rates to treatment — Public total treatment in Japan, 1970–2024
Source: Organisation for Economic Co-operation and Development. Measured in Percentage of population.
Analysis
In 2024, wastewater - connection rates to treatment — public total treatment in Japan stood at 81.1 Percentage of population.
That represents a change of down 0.4% on the previous year and up 4.5% over ten years.
Over the whole period, wastewater - connection rates to treatment — public total treatment in Japan peaked at 81.4 Percentage of population in 2023 and was at its lowest, 16 Percentage of population, in 1970.
Japan ranks 21st of 36 countries on this measure, in the middle of the range.
The long-run direction has been consistently rising across the 31 years of available data.
Wastewater - connection rates to treatment — Public total treatment in Japan, year by year
| Year | Percentage of population | Change |
|---|---|---|
| 1970 | 16 Percentage of population | — |
| 1975 | 23 Percentage of population | +43.8% |
| 1980 | 30 Percentage of population | +30.4% |
| 1985 | 36 Percentage of population | +20.0% |
| 1990 | 44 Percentage of population | +22.2% |
| 1995 | 54 Percentage of population | +22.7% |
| 2000 | 62 Percentage of population | +14.8% |
| 2001 | 64 Percentage of population | +3.2% |
| 2002 | 65 Percentage of population | +1.6% |
| 2003 | 67 Percentage of population | +3.1% |
| 2004 | 68.07 Percentage of population | +1.6% |
| 2005 | 69.26 Percentage of population | +1.7% |
| 2006 | 71 Percentage of population | +2.5% |
| 2007 | 71.7 Percentage of population | +1.0% |
| 2008 | 72.7 Percentage of population | +1.4% |
| 2009 | 73.7 Percentage of population | +1.4% |
| 2010 | 75.1 Percentage of population | +1.9% |
| 2011 | 75.8 Percentage of population | +0.9% |
| 2012 | 76.3 Percentage of population | +0.7% |
| 2013 | 77 Percentage of population | +0.9% |
| 2014 | 77.6 Percentage of population | +0.8% |
| 2015 | 77.8 Percentage of population | +0.3% |
| 2016 | 78.3 Percentage of population | +0.6% |
| 2017 | 78.8 Percentage of population | +0.6% |
| 2018 | 79.3 Percentage of population | +0.6% |
| 2019 | 79.7 Percentage of population | +0.5% |
| 2020 | 80.1 Percentage of population | +0.5% |
| 2021 | 80.6 Percentage of population | +0.6% |
| 2022 | 81 Percentage of population | +0.5% |
| 2023 | 81.4 Percentage of population | +0.5% |
| 2024 | 81.1 Percentage of population | -0.4% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1970s | 19.5 Percentage of population | 16 Percentage of population | 23 Percentage of population | 2 |
| 1980s | 33 Percentage of population | 30 Percentage of population | 36 Percentage of population | 2 |
| 1990s | 49 Percentage of population | 44 Percentage of population | 54 Percentage of population | 2 |
| 2000s | 68.44 Percentage of population | 62 Percentage of population | 73.7 Percentage of population | 10 |
| 2010s | 77.57 Percentage of population | 75.1 Percentage of population | 79.7 Percentage of population | 10 |
| 2020s | 80.84 Percentage of population | 80.1 Percentage of population | 81.4 Percentage of population | 5 |
Countries ranked near Japan
More environment data for Japan
- Historical exposure to drought — Land soil moisture anomaly -4.51 Percentage change (2025)
- Historical exposure to drought — Cropland soil moisture anomaly -4.8 Percentage change (2025)
- Standard Deviation, annual growth rate 0 % change on previous year (2025)
- Standard Deviation 0.358 °C (2025)
- Temperature change 1.86 °C (2025)
- Paper and paperboard — Import quantity, annual growth rate -2.84 % change on previous year (2024)
- Paper and paperboard — Import quantity, per unit of GDP 0 t per US$ of GDP (2024)
- Paper and paperboard — Import quantity, per capita 0.0076 t per person (2024)
- Paper and paperboard — Import value, annual growth rate -7.4 % change on previous year (2024)
- Paper and paperboard — Import value, per unit of GDP 0 1000 USD per US$ of GDP (2024)
Frequently asked questions
- What is wastewater - connection rates to treatment — public total treatment in Japan?
- Wastewater - connection rates to treatment — public total treatment in Japan was 81.1 Percentage of population in 2024, according to Organisation for Economic Co-operation and Development.
- What is the highest wastewater - connection rates to treatment — public total treatment recorded in Japan?
- The highest recorded value was 81.4 Percentage of population in 2023.
- What is the lowest wastewater - connection rates to treatment — public total treatment recorded in Japan?
- The lowest recorded value was 16 Percentage of population in 1970.
- How does Japan rank for wastewater - connection rates to treatment — public total treatment?
- Japan ranks 21st out of 36 countries with data for 2024.
- Is wastewater - connection rates to treatment — public total treatment rising or falling in Japan?
- Over the last ten years it is up 4.5%. The long-run trend across the full record is rising.
- Where does this Japan data come from?
- The figures come from Organisation for Economic Co-operation and Development, published as part of Wastewater - connection rates to treatment — Public total treatment. Statizoid updates them automatically from the source API.
Download this data
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About this data
This dataset provides information on the level of public equipment installed by countries to managed and abate water pollution. It shows the percentage of national population connected to "public" sewerage networks and related treatment facilities, and the percentage of national population connected to "public" wastewater treatment plants, and the degree of treatment. Connected here means actually connected to a wastewater plants through a public sewage network. When analysing these data, it should be kept in mind that the optimal connection rate is not necessarily 100%. It may vary among countries and depends on geographical features and on the spatial distribution of habitats. The interpretation of those data should take into account some variations in countries' definitions, as reflected in metadata. Data source(s): Joint OECD/Eurostat questionnaire on Inland Waters. Data for non-OECD countries is sourced from UNSD (https://unstats.un.org/unsd/envstats/country_files) Contact: ENV.Stat@oecd.org Dataset release date: August 7, 2026 Country metadata - Métadonnées pays