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TWINBASINXN: Promoting Twinning of River Basins for Developing Integrated Water Resources Management Practices

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Percentage of a Countrys Area Within International River Basins

Country/Territory
(area in sq. km.)
International Basins Total area of country/territory falling within international basins (sq. km.) Percentage of country/territory area falling within international basins
Afghanistan (641 869) Hari/Harirud, Helmand, Indus, Kowl-E-Namaksar, Murgab, Tarim 447 252 69.68
Albania (28 755) Danube, Drin, Lake Prespa, Vijose 14 291 49.70
Algeria (2 320 972) Daoura, Dra, Guir, Lake Chad, Medjerda, Niger, Oued Bon Naima, Tafna 358 230 15.43
Andorra (452) Ebro, Garonne 452 100.00
Angola (1 252 421) Chiloango, Congo/Zaire, Kunene, Okavango, Zambezi 849 457 67.83
Argentina (2 781 013) Aviles, Aysen, Baker, Chico/Carmen Silva, Comau, Cullen, Gallegos-Chico, La Plata, Lake Fagnano, Palena, Pascua, Puelo, Rio Grande, San Martin, Seno Union/Serrano, Valdivia, Yelcho, Zapaleri 870 449 31.30
Armenia (29 872) Kura-Araks 29 872 100.00
Austria (83 739) Danube, Elbe, Po, Rhine 83 739 100.00
Azerbaijan (85 808) Astara Chay, Kura-Araks, Samur, Sulak 60 357 70.34
Bangladesh (138 507) Fenney, Ganges-Brahmaputra-Meghna, Karnafauli 135 569 97.88
Belgium (30 480) Rhine, Schelde, Seine, Yser 21 895 71.83
Belize (22 175) Belize, Hondo, Sarstun 8 743 39.43
Benin (116 515) Mono, Niger, Oueme, Volta 110 829 95.12
Bhutan (39 927) Ganges-Brahmaputra-Meghna 39 324 98.49
Bolivia (1 090 353) Amazon, Cancoso/Lauca, La Plata, Lake Titicaca-Poopo, Zapaleri 1 043 143 95.67
Bosnia and Herzegovina (51 403) Danube, Krka, Neretva 47 839 93.07
Botswana (580 011) Limpopo, Okavango, Orange, Zambezi 580 011 100.00
Brazil (8 507 128) Amazon, Chuy, Essequibo, La Plata, Lagoon Mirim, Maroni, Oyupock/Oiapoque 5 078 034 59.69
Brunei (5 770) Bangau, Pandaruan 638 11.06
Bulgaria (110 802) Danube, Maritsa, Nestos, Rezvaya, Struma, Velaka 95 106 85.83
Burkina Faso (273 719) Komoe, Niger, Volta 273 719 100.00
Burundi (27 254) Congo/Zaire, Nile 27 254 100.00
Byelarus (206 681) Daugava, Dnieper, Narva, Neman, Vistula/Wista, Volga 197 800 95.70
Cambodia (182 612) Mekong, Saigon/Song Nha Be, Song Vam Co Dong 164 797 90.24
Cameroon (466 307) Akpa Yafi, Congo/Zaire, Cross, Lake Chad, Niger, Ntem, Ogooue 261 507 56.08
Canada (9 904 700) Alesek, Chilkat, Columbia, Firth, Fraser, Mississippi, Nelson-Saskatchewan, St. Croix, St. John, St. Lawrence, Stikine, Taku, Whiting, Yukon 2 354 445 23.77
Central African Republic (621 499) Congo/Zaire, Lake Chad 621 499 100.00
Chad (1 168 002) Lake Chad, Niger 1 110 821 95.10
Chile (742 298) Aviles, Aysen, Baker, Cancoso/Lauca, Chico/Carmen Silva, Comau, Cullen, Gallegos-Chico, Lake Fagnano, Lake Titicaca-Poopo, Palena, Pascua, Puelo, Rio Grande, San Martin, Seno Union/Serrano, Valdivia, Yelcho, Zapaleri 92 557 12.47
China (9 338 902) Amur, Aral Sea, Beilun, Ganges-Brahmaputra-Meghna, Har Us Nur, Hsi/Bei Jiang, Ili/Kunes He, Indus, Irrawaddy, Mekong, Ob, Pu-Lun-To, Red/Song Hong, Salween, Sujfun, Tarim, Tumen, Yalu 3 018 678 32.32
Colombia (1 141 962) Amazon, Catatumbo, Jurado, Mataje, Mira, Orinoco, Patia 749 595 65.64
Congo  Democratic Republic of the (Kinshasa) (2 337 027) Chiloango, Congo/Zaire, Nile, Zambezi 2 337 027 100.00
Congo  Republic of the (Brazzaville) (345 430) Chiloango, Congo/Zaire, Nyanga, Ogooue 276 097 79.93
Costa Rica (51 608) Changuinola, Chiriqui, San Juan, Sixaola 14 829 28.73
Croatia (56 288) Danube, Krka, Neretva 35 660 63.35
Czech Republic (78 495) Danube, Elbe, Oder/Odra, Vistula/Wista 78 380 99.85
Djibouti (21 638) Awash 11 088 51.24
Dominican Republic (48 445) Artibonite, Massacre, Pedernales 2 660 5.49
Ecuador (256 932) Amazon, Chira, Mataje, Mira, Patia, Tumbes-Poyango, Zarumilla 154 871 60.28
Egypt (982 910) Jordan (Dead Sea), Nile 280 241 28.51
El Salvador (20 697) Goascoran, Lempa, Paz 11 532 55.72
Equatorial Guinea (27 085) Benito, Mbe, Ntem, Ogooue, Utamboni 21 769 80.37
Eritrea (121 941) Baraka, Gash, Nile 63 046 51.70
Estonia (45 545) Gauja, Narva, Parnu, Salaca 25 152 55.23
Ethiopia (1 132 328) Awash, Gash, Juba-Shibeli, Lake Turkana, Lotagipi Swamp Nile 990 989 87.52
Finland (333 797) Kemi, Naatamo, Olanga, Oulu, Pasvik, Tana, Torne/Tornealven, Tuloma, Vuoksa 168 686 50.54
France (546 729) Ebro, Garonne, Po, Rhine, Rhone, Roia, Schelde, Seine, Yser 259 366 47.44
French Guiana (83 811) Maroni, Oyupock/Oiapoque 40 907 48.81
Gabon (261 689) Benito, Congo/Zaire, Mbe, Ntem, Nyanga, Ogooue, Utamboni 223 688 85.48
Gambia  The (10 678) Gambia 5 890 55.16
Georgia (69 943) Coruh, Kura-Araks, Sulak, Terek 39 335 56.24
Germany (356 109) Danube, Elbe, Oder/Odra, Rhine 253 536 71.20
Ghana (239 981) Bia, Komoe, Tano, Volta 189 579 79.00
Greece (131 852) Lake Prespa, Maritsa, Nestos, Struma, Vardar, Vijose 24 750 18.77
Guatemala (109 502) Belize, Candelaria, Coatan Achute, Grijalva, Hondo, Lempa, Motaqua, Paz, Sarstun, Suchiate 79 942 73.01
Guinea (246 077) Cavally, Cestos, Corubal, Gambia, Geba, Great Scarcies, Little Scarcies, Loffa, Moa, Niger, Sassandra, Senegal, St. John, St. Paul 205 171 83.38
Guinea-Bissau (33 635) Corubal, Geba 15 117 44.94
Guyana (211 241) Amacuro, Amazon, Barima, Courantyne/Corantijn, Essequibo 159 682 75.59
Haiti (27 157) Artibonite, Massacre, Pedernales 7 303 26.89
Honduras (112 852) Choluteca, Coco/Segovia, Goascoran, Lempa, Motaqua, Negro 24 746 21.93
Hungary (92 782) Danube 92 782 100.00
India (3 089 282) Fenney, Ganges-Brahmaputra-Meghna, Indus, Irrawaddy, Kaladan, Karnafauli 1 367 871 44.28
Indonesia (1 910 842) Fly, Merauke, Sembakung, Sepik, Tami 106 314 5.56
Iran (1 624 760) Astara Chay, Atrak, Dasht, Hari/Harirud, Helmand, Kowl-E-Namaksar, Kura-Araks, Rudkhaneh-ye/BahuKalat, Tigris-Euphrates/Shatt al Arab 350 528 21.57
Iraq (436 422) Tigris-Euphrates/Shatt al Arab 318 912 73.07
Ireland (69 384) Bann, Castletown, Erne, Fane, Flurry, Foyle 3 403 4.90
Israel (20 774) Jordan (Dead Sea), Wadi Al Izziyah 10 790 51.94
Italy (300 980) Danube, Isonzo, Po, Rhine, Rhone, Roia 84 965 28.23
Ivory Coast (322 216) Bia, Cavally, Cestos, Komoe, Niger, Sassandra, St. John, Tano, Volta 178 483 55.39
Jordan (89 275) Jordan (Dead Sea), Tigris-Euphrates/Shatt al Arab 22 842 25.59
Kazakhstan (2 715 976) Aral Sea, Ili/Kunes He, Ob, Oral (Ural), Pu-Lun-To, Tarim, Volga 1 739 057 64.03
Kenya (584 429) Juba-Shibeli, Lake Natron, Lake Turkana, Lotagipi Swamp, Nile, Umba 396 722 67.88
Korea  Democratic People's Republic of (122 473) Amur, Han, Tumen, Yalu 52 127 42.56
Korea  Republic of (98 339) Han 25 104 25.53
Kyrgyzstan (199 340) Aral Sea, Ili/Kunes He, Tarim 170 614 85.59
Laos  People's Democratic Republic of (230 566) Ca/Song-Koi, Ma, Mekong, Red/Song Hong 221 662 96.14
Latvia (64 299) Barta, Daugava, Gauja, Lielupe, Narva, Neman, Parnu, Salaca, Venta 59 840 93.07
Lebanon (10 240) An Nahr Al Kabir, Asi/Orontes, Jordan (Dead Sea), Wadi Al Izziyah 2 913 28.45
Lesotho (30 352) Orange 19 854 65.41
Liberia (96 296) Cavally, Cestos, Loffa, Mana-Morro, Moa, St. John, St. Paul 68 932 71.58
Libya (1 620 515) Lake Chad 4 580 0.28
Liechtenstein (165) Rhine 165 100.00
Lithuania (64 849) Barta, Daugava, Lielupe, Neman, Venta 62 616 96.56
Luxembourg (2 594) Rhine, Seine 2 594 100.00
Macedonia (25 321) Drin, Lake Prespa, Struma, Vardar 25 017 98.80
Malawi (119 028) Congo/Zaire, Ruvuma, Zambezi 111 234 93.45
Malaysia (330 270) Bangau, Golok, Pandaruan, Sembakung 8 458 2.56
Mali (1 256 747) Komoe, Niger, Senegal, Volta 712 452 56.69
Mauritania (1 041 570) Atui, Senegal 228 438 21.93
Mexico (1 962 939) Candelaria, Coatan Achute, Colorado, Grijalva, Hondo, Rio Grande, Suchiate, Tijuana, Yaqui 408 513 20.81
Moldova (33 567) Danube, Dniester, Kogilnik, Sarata 33 567 100.00
Mongolia (1 559 176) Amur, Har Us Nur, Lake Ubsa-Nur, Pu-Lun-To, Yenisey/Jenisej 616 438 39.54
Morocco (403 860) Daoura, Dra, Guir, Oued Bon Naima, Tafna 79 377 19.65
Mozambique (788 629) Buzi, Incomati, Limpopo, Maputo, Ruvuma, Sabi, Umbeluzi, Zambezi 423 969 53.76
Myanmar (Burma) (669 821) Ganges-Brahmaputra-Meghna, Irrawaddy, Kaladan, Mekong, Pakchan, Salween 528 413 78.89
Namibia (825 632) Etosha-Cuvelai, Kunene, Okavango, Orange, Zambezi 563 706 68.28
Nepal (147 293) Ganges-Brahmaputra-Meghna 147 293 100.00
Netherlands (35 493) Rhine, Schelde 11 991 33.78
Nicaragua (129 047) Choluteca, Coco/Segovia, Negro, San Juan 49 637 38.46
Niger (1 186 021) Lake Chad, Niger 1 186 021 100.00
Nigeria (912 039) Akpa, Cross, Lake Chad, Niger, Oueme 795 581 87.23
Norway (316 962) Jacobs, Kemi, Klaralven, Naatamo, Pasvik, Tana, Torne/Tornealven 20 418 6.44
Pakistan (877 753) Dasht, Helmand, Indus, Rudkhaneh-ye/BahuKalat, Tarim 649 238 73.97
Panama (74 697) Changuinola, Chiriqui, Jurado, Sixaola 4 941 6.61
Papua New Guinea (466 161) Fly, Merauke, Sepik, Tami 136 246 29.23
Paraguay (400 089) La Plata 400 089 100.00
Peru (1 296 912) Amazon, Chira, Lake Titicaca-Poopo, Tumbes-Poyango, Zarumilla 1 038 875 80.10
Poland (310 715) Danube, Dniester, Elbe, Lava-Pregel, Neman, Oder/Odra, Prohladnaja, Vistula/Wista 281 897 90.73
Portugal (92 098) Douro/Duero, Guadiana, Lima, Mino/Minho, Tagus/Tejo 44 898 48.75
Romania (236 654) Danube 228 826 96.69
Russia (16 851 940) Amur, Daugava, Dnieper, Don, Elancik, Har Us Nur, Jacobs, Kemi, Kura-Araks, Lake Ubsa-Nur, Lava-Pregel, Mius, Narva, Neman, Olanga, Ob, Oral (Ural), Oulu, Pasvik, Prohladnaja, Pu-Lun-To, Samur, Sujfun, Sulak, Terek, Tuloma, Tumen, Volga, Vuoksa, Yenisey/Jenisej 7 923 626 47.02
Rwanda (25 228) Congo/Zaire, Nile 25 228 100.00
Saudi Arabia (1 960 175) Tigris-Euphrates/Shatt al Arab 236 0.01
Senegal (196 911) Gambia, Geba, Senegal 90 543 45.98
Sierra Leone (72 531) Great Scarcies, Little Scarcies, Mana-Morro, Moa, Niger 27 693 38.18
Slovakia (48 648) Danube, Oder/Odra, Vistula/Wista 48 648 100.00
Slovenia (20 246) Danube, Isonzo 18 184 89.82
Somalia (639 065) Awash, Juba-Shibeli 221 757 34.70
South Africa (1 223 111) Incomati, Limpopo, Maputo, Orange, Umbeluzi 797 512 65.20
Spain (505 674) Bidasoa, Douro/Duero, Ebro, Garonne, Guadiana, Lima, Mino/Minho, Tagus/Tejo 291 100 57.57
Sudan (2 490 409) Baraka, Gash, Lake Chad, Lake Turkana, Lotagipi Swamp, Nile 2 064 458 82.90
Suriname (145 498) Amazon, Courantyne/Corantijn, Maroni 73 952 50.83
Swaziland (17 164) Incomati, Maputo, Umbeluzi 16 762 97.66
Sweden (443 800) Klaralven, Torne/Tornealven 68 679 15.48
Switzerland (41 178) Danube, Po, Rhine, Rhone 41 178 100.00
Syria (187 937) An Nahr Al Kabir, Asi/Orontes, Jordan (Dead Sea), Nahr El Kebir, Tigris-Euphrates/Shatt al Arab 136 792 72.79
Tajikistan (142 410) Aral Sea, Tarim 14 024 9.85
Tanzania  United Republic of (944 977) Congo/Zaire, Lake Natron, Nile, Ruvuma, Umba, Zambezi 410 705 43.46
Thailand (515 144) Golok, Mekong, Pakchan, Salween 205 847 39.96
Togo (57 300) Mono, Oueme, Volta 48 653 84.91
Tunisia (155 402) Medjerda 15 573 10.02
Turkey (779 986) Asi/Orontes, Coruh, Kura-Araks, Maritsa, Nahr El Kebir, Rezvaya, Tigris-Euphrates/Shatt al Arab, Velaka 266 523 34.17
Turkmenistan (471 429) Aral Sea, Atrak, Hari/Harirud, Murgab 52 956 11.23
Uganda (243 050) Lake Turkana, Lotagipi Swamp, Nile 243 049 100.00
Ukraine (596 041) Danube, Dnieper, Dniester, Don, Elancik, Kogilnik, Mius, Sarata, Vistula/Wista 451 715 75.79
United Kingdom (243 137) Bann, Castletown, Erne, Fane, Flurry, Foyle 9 235 3.80
United States (9 450 720) Alesek, Chilkat, Colorado, Columbia, Firth, Fraser, Mississippi, Nelson-Saskatchewan, Rio Grande, St. Croix, St. John, St. Lawrence, Stikine, Taku, Tijuana, Whiting, Yaqui, Yukon 5 895 293 62.38
Uruguay (178 141) Chuy, La Plata, Lagoon Mirim 142 846 80.19
Uzbekistan (445 711) Aral Sea 236 695 53.11
Venezuela (916 561) Amacuro, Amazon, Barima, Catatumbo, Essequibo, Orinoco 698 462 76.20
Vietnam (327 123) Beilun, Ca/Song-Koi, Hsi/Bei Jiang, Ma, Mekong, Red/Song Hong, Saigon/Song Nha Be, Song Vam Co Dong 193 152 59.05
West Bank (5 816) Jordan (Dead Sea) 3 152 54.20
Western Sahara (269 602) Atui 1 100 0.41
Yugoslavia (Serbia and Montenegro) (101 945) Danube, Drin, Neretva, Struma, Vardar 99 950 98.04
Zambia (754 773) Congo/Zaire, Zambezi 754 773 100.00
Zimbabwe (390 804) Buzi, Limpopo, Okavango, Sabi, Zambezi 390 804 100.00




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