Share of population not using improved drinking water sources in Japan
Japan: Share of population not using improved drinking water sources was 0.8% in 2024. ▼ Falling
Share of population not using improved drinking water sources in Japan, 2000–2024
Source: WHO/UNICEF Joint Monitoring Programme for Water Supply, Sanitation and Hygiene (2025) – processed by Our World in Data. Measured in %.
Analysis
The most recent figure for share of population not using improved drinking water sources in Japan is 0.8%, measured in 2024. That is the lowest value across all 25 years on record.
Compared with earlier readings it is down 27.8% over ten years.
Over the whole period, share of population not using improved drinking water sources in Japan peaked at 1.5% in 2000 and was at its lowest, 0.8%, in 2023.
Japan ranks 126th of 231 countries on this measure, in the middle of the range.
The long-run direction has been consistently falling across the 25 years of available data.
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 2000s | 1.4% | 1.3% | 1.5% | 10 |
| 2010s | 1.1% | 1.0% | 1.3% | 10 |
| 2020s | 0.9% | 0.8% | 0.9% | 5 |
Countries ranked near Japan
More environment data for Japan
- Total greenhouse gas emissions excluding LULUCF 1,063 Mt CO2e (2024)
- Total greenhouse gas emissions excluding LULUCF per capita 8.58 t CO2e/capita (2024)
- Methane (CH4) emissions from Agriculture 38.9 Mt CO2e (2024)
- Methane (CH4) emissions from Building (Energy) 1.04 Mt CO2e (2024)
- Methane (CH4) emissions from Fugitive Emissions (Energy) 3.5 Mt CO2e (2024)
- Methane (CH4) emissions from Industrial Combustion (Energy) 0.3162 Mt CO2e (2024)
- Methane (CH4) emissions (total) excluding LULUCF 50.87 Mt CO2e (2024)
- Methane (CH4) emissions from Power Industry (Energy) 0.6478 Mt CO2e (2024)
- Methane (CH4) emissions from Transport (Energy) 0.4564 Mt CO2e (2024)
- Methane (CH4) emissions from Waste 5.74 Mt CO2e (2024)
Frequently asked questions
- What is share of population not using improved drinking water sources in Japan?
- Share of population not using improved drinking water sources in Japan was 0.8% in 2024, according to WHO/UNICEF Joint Monitoring Programme for Water Supply, Sanitation and Hygiene (2025) – processed by Our World in Data.
- What is the highest share of population not using improved drinking water sources recorded in Japan?
- The highest recorded value was 1.5% in 2000.
- What is the lowest share of population not using improved drinking water sources recorded in Japan?
- The lowest recorded value was 0.8% in 2023.
- How does Japan rank for share of population not using improved drinking water sources?
- Japan ranks 126th out of 231 countries with data for 2024.
- Is share of population not using improved drinking water sources rising or falling in Japan?
- Over the last ten years it is down 27.8%. The long-run trend across the full record is falling.
- Where does this Japan data come from?
- The figures come from WHO/UNICEF Joint Monitoring Programme for Water Supply, Sanitation and Hygiene (2025) – processed by Our World in Data, published as part of Share of population not using improved drinking water sources. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 25 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
Proportion of people not using improved drinking water sources. These people might use surface water sources or unprotected springs or wells, as no safe and reliable improved drinking water source is available to them.