People not using improved drinking water sources in Japan
Japan: People not using improved drinking water sources was 1.01 million people in 2024. ▼ Falling
People 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 people.
Analysis
The most recent figure for people not using improved drinking water sources in Japan is 1.01 million people, measured in 2024. That is the lowest value across all 25 years on record.
Compared with earlier readings it is down 0.5% on the previous year and down 29.9% over ten years.
Over the whole period, people not using improved drinking water sources in Japan peaked at 1.89 million people in 2004 and was at its lowest, 1.01 million people, in 2024.
Japan ranks 54th of 231 countries on this measure, in the top quarter.
The long-run direction has been consistently falling across the 25 years of available data.
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 2000s | 1.82 million people | 1.67 million people | 1.89 million people | 10 |
| 2010s | 1.42 million people | 1.21 million people | 1.63 million people | 10 |
| 2020s | 1.07 million people | 1.01 million people | 1.16 million people | 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 people not using improved drinking water sources in Japan?
- People not using improved drinking water sources in Japan was 1.01 million people 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 people not using improved drinking water sources recorded in Japan?
- The highest recorded value was 1.89 million people in 2004.
- What is the lowest people not using improved drinking water sources recorded in Japan?
- The lowest recorded value was 1.01 million people in 2024.
- How does Japan rank for people not using improved drinking water sources?
- Japan ranks 54th out of 231 countries with data for 2024.
- Is people not using improved drinking water sources rising or falling in Japan?
- Over the last ten years it is down 29.9%. 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 People 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
Number 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.