Freshwater - resources — Outflow to marine waters by country
This dataset shows countries’ freshwater resources, and their cycles, both annually and long-term averages. Data source(s): Joint OECD/Eurostat questionnaire on Inland Waters. Data for non-OECD countries is sourced from UNSD (Country Files from the UNSD/UNEP data collection on environment statistics (available at:...
What the numbers show
Freshwater - resources — Outflow to marine waters is currently reported for 16 countries. The highest value is 7,892 Cubic metres in Brazil; the lowest is 0.061 Cubic metres in Romania.
The median across all reporting countries is 145.72 Cubic metres, and the mean is 654.7 Cubic metres.
Freshwater - resources — Outflow to marine waters: full country ranking
| # | Country | Latest | Year | 10-year change | Trend |
|---|---|---|---|---|---|
| 1 | Brazil | 7,892 Cubic metres | 2024 | unchanged | flat |
| 2 | Chile | 973.3 Cubic metres | 2024 | unchanged | flat |
| 3 | Norway | 359.07 Cubic metres | 2024 | unchanged | flat |
| 4 | Thailand | 218.78 Cubic metres | 2024 | unchanged | flat |
| 5 | Sweden | 189.78 Cubic metres | 2024 | unchanged | flat |
| 6 | France | 174.23 Cubic metres | 2024 | unchanged | flat |
| 7 | Iceland | 170 Cubic metres | 2024 | unchanged | flat |
| 8 | United Kingdom | 166.91 Cubic metres | 2024 | unchanged | flat |
| 9 | Argentina | 124.53 Cubic metres | 2024 | unchanged | flat |
| 10 | Finland | 80 Cubic metres | 2024 | unchanged | flat |
| 11 | Germany | 49 Cubic metres | 2024 | unchanged | flat |
| 12 | Australia | 40.62 Cubic metres | 2024 | unchanged | flat |
| 13 | Portugal | 34 Cubic metres | 2024 | unchanged | flat |
| 14 | Bulgaria | 1.84 Cubic metres | 2024 | unchanged | flat |
| 15 | Belgium | 0.7636 Cubic metres | 2024 | unchanged | flat |
| 16 | Romania | 0.061 Cubic metres | 2024 | unchanged | flat |
Regions and income groups
Aggregates are excluded from the country ranking above so that a region can never outrank a country.
About this data
This dataset shows countries’ freshwater resources, and their cycles, both annually and long-term averages. Data source(s): Joint OECD/Eurostat questionnaire on Inland Waters. Data for non-OECD countries is sourced from UNSD (Country Files from the UNSD/UNEP data collection on environment statistics (available at: https://unstats.un.org/unsd/envstats/country_files)) Contact: ENV.Stat@oecd.org Dataset release date: August 7, 2026 Country metadata - Métadonnées pays