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Indicator 6.5.2 – Transboundary water cooperation

An “arrangement for water cooperation” is a bilateral or multilateral treaty, convention, agreement or other formal arrangement between riparian countries that provides a framework for cooperation on transboundary water management. Criteria for an “operational” arrangement are: the existence of a joint body, regular, formal communication between riparian countries, joint or coordinated management plans or objectives and a regular exchange of data and information.

  • 58 % of transboundary basin area has an operational arrangement for water cooperation (SDG indicator 6.5.2, 2020)
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Available data series:
Number of UN Member States sharing transboundary waters:
Learn more about the indicator and how it is monitored
Read the latest progress report for an analysis of the current status

Global status of Indicator 6.5.2 Proportion of transboundary basin area with an operational arrangement for water cooperation (%) (2020)

The overall indicator value (for both river and lake basins and aquifers) is available for 62 countries, which corresponds to 41 % of the 153 countries that share transboundary basins. The world map shows the global status of Indicator 6.5.2. The 62 countries are spread over several regions, although some regions are better represented than others: 56 % of countries sharing transboundary basins in Northern America and Europe; 50 % for Latin America and the Caribbean; 47 % for sub-Saharan Africa; 33 % for Northern Africa and Western Asia; 28 % for Central and Southern Asia; and 8 % for Eastern and South-Eastern Asia. Only 17 countries have all their transboundary basins covered by operational arrangements, and 12 of the countries that reported have no operational arrangements in place.

Proportion of transboundary basin area with an operational arrangement for cooperation (%)

Progress over time for Indicator 6.5.2 Proportion of transboundary basin area with an operational arrangement for water cooperation (%)

Status in different countries (or areas) on Indicator 6.5.2 Proportion of transboundary basin area with an operational arrangement for water cooperation (%) (2020)

The chart provides a breakdown of indicator 6.5.2 across all countries where the value is available. This highlights that only 17 of the reporting countries have all their transboundary basin area covered by an operational arrangement – most of these countries are located in North America and Europe.

  • Australia and New Zealand
  • Eastern and South-Eastern Asia
  • Central and Southern Asia
  • Latin America and the Caribbean
  • Europe and Northern America
  • Sub-Saharan Africa
  • Oceania (excluding Australia and New Zealand)
  • Northern Africa and Western Asia

Status in different SDG regions on Indicator 6.5.2 Proportion of transboundary basin area with an operational arrangement for water cooperation (%) ()

Status on different components of Indicator 6.5.2 Proportion of transboundary basin area with an operational arrangement for water cooperation (%) (2020)

Proportion of transboundary basin area with an operational arrangement for water cooperation, by water body type: transboundary river and lake basins and transboundary aquifers.

Overall (based on 62 countries): While data are available for transboundary aquifers in 64 countries, and for river and lake basins in 87 countries, the overall indicator is only available for 62 countries because in 25 instances it was not possible to calculate either the value for river and lake basins or for transboundary aquifers.

River and lake basins (based on 84 countries) - While data are available for 87 countries sharing transboundary aquifers, three countries state that they do not share transboundary rivers and lakes. Only data on 84 countries are therefore presented.

Aquifers (based on 61 countries) - While data are available for 64 countries sharing transboundary aquifers, three countries state that they do not share transboundary aquifer resources.Only data on 61 countries is therefore presented.

Source data Indicator 6.5.2 Proportion of transboundary basin area with an operational arrangement for water cooperation (%)

Country (or area), regional and world data for the latest year of reporting: 2020

Country (or area), region, world 6.5.2 Proportion of transboundary basin area with an operational arrangement for water cooperation (%)
YearOverallTransboundary river and lake basinsTransboundary aquifers
Afghanistan202051.66
Albania202054.4956.0151.67
Algeria202057.54058.32
Andorra20204.384.38
Angola202078.8410015.24
Argentina202060.4199.570
Armenia202011.3412.410
Austria2020100100100
Azerbaijan202021.7327.753.86
Belarus202067.4367.4367.43
Belgium2020100100100
Benin202083.3398.3058.47
Bosnia and Herzegovina202092.6096.1473.32
Botswana2020100100100
Brazil202062.3698.170
Brunei Darussalam2020000
Bulgaria202099.5510097.59
Burkina Faso202093.57
Burundi202088.3492.0379.39
Cambodia2020561000
Cameroon202088.2587.2092.55
Canada202080.2291.270
Chad202044.4235.8553.18
Chile202087.2187.210
Colombia20201.08
Costa Rica202099.040
Côte d'Ivoire202018.04
Croatia2020100100100
Czechia2020100100100
Democratic Republic of the Congo202099.61
Denmark2020100100
Dominican Republic2020000
Ecuador2020100100100
Egypt2020100
El Salvador20200.0700.64
Equatorial Guinea202000
Estonia2020100100100
Eswatini202091.911000
Ethiopia202049.51
Finland2020100100
France202056.5456.54
Gabon2020000
Gambia202046.8690.650
Georgia2020000
Germany2020100100100
Ghana202091.0588.3695.68
Greece202032.7658.141.03
Guinea202066.78
Guinea-Bissau202042.861000
Guyana20205.948.350
Honduras2020000
Hungary2020100100100
Indonesia20201.2289.930
Iraq202010.6115.040
Ireland2020100100100
Italy2020100100100
Jordan202023.2361.6914.92
Kazakhstan202063.221000
Kenya202026.7535.910
Kyrgyzstan202027.2029.910
Lao People's Democratic Republic202092.92
Latvia202097.2910094.52
Lebanon202076.42
Lesotho2020501000
Libya202097.9697.96
Liechtenstein2020100100100
Lithuania202034.0625.6950.17
Luxembourg2020100100100
Malawi202061.4093.144.45
Malaysia20201.7313.220
Mali202075.3599.9160.67
Mexico202038.5749.6521.67
Mongolia2020100100100
Montenegro202066.6884.8020.19
Morocco2020000
Myanmar202020.0224.780
Namibia2020100100100
Netherlands2020100100100
Nicaragua20200
Niger202085.6689.3981.23
Nigeria2020100
North Macedonia202012.9413.2412.22
Norway202089.4589.4688.31
Panama20209.139.310
Paraguay202050.861000
Peru202014.11
Poland202055.6848.08100
Portugal2020100100
Qatar202000
Republic of Korea2020000
Republic of Moldova2020100100100
Romania2020100100100
Rwanda202047.901000
Senegal202035.211000
Serbia202089.6592.5173.73
Sierra Leone20207.027.02
Slovakia202080.9210021.94
Slovenia2020100100100
Somalia2020000
South Africa202094.9110045.12
Spain2020100100
Suriname2020000
Sweden2020100100100
Switzerland202090.2393.5074.11
Thailand2020100
Togo202060.1755.6376.02
Tunisia202080.470100
Turkmenistan202066.02
Uganda202084.9398.470
Ukraine202060.5957.41100
United Arab Emirates2020000
United Kingdom of Great Britain and Northern Ireland2020000
Uzbekistan202069.591000
Venezuela (Bolivarian Republic of)20203.516.960
Viet Nam202030.460
Zambia202070.0376.790
Zimbabwe202069.9072.7643.73
World202058.0164.8641.80
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