| 100% | SHATTALARAB | 11 | River in SE Iraq formed by the confluence of the Tigris and Euphrates Rivers |
| 59% | YAZOO | 5 | River in Mississippi, US, formed by the confluence of the Tallahatchie and Yalobusha Rivers |
| 58% | GIRONDE | 7 | Estuary in France formed by the confluence of the Rivers Dordogne and Garonne |
| 53% | PARANA | 6 | River of South America formed at the confluence of the Paranaiba and Grande Rivers in Brazil |
| 47% | WESER | 5 | River formed by the junction of the Fulda and Werra |
| 46% | DESSAU | 6 | Town in Saxony-Anhalt, Germany, at the confluence of the Elbe and Mulde Rivers |
| 45% | PINSK | 5 | City in Belarus at the confluence of the Pina and Pripyat Rivers |
| 45% | OXFORD | 6 | City in England at the confluence of the Thames and Cherwell rivers |
| 45% | OMSK | 4 | City in Russia at the confluence of the Om and Irtysh Rivers |
| 45% | DESSAU | 6 | Town in Germany at the confluence of the Elbe and Mulde rivers |
| 45% | PADUCAH | 7 | City in Kentucky, US, at the confluence of the Ohio and Tennessee Rivers |
| 44% | BAYONNE | 7 | Seaport in Pyrenees-Atlantiques, southwest France, at the confluence of the Adour and Nive rivers |
| 43% | HUELVA | 6 | City in SW Spain near the Portuguese border at the confluence of the Odiel and Tinto Rivers |
| 43% | EDEN | 4 | Origin of the Tigris and the Euphrates, in Genesis |
| 43% | MONMOUTH | 8 | Town in SE Wales near the border with England at the confluence of the Rivers Wye and Monnow |
| 42% | THUN | 4 | Lake —, body of water in central Switzerland formed by a widening of the Aare River |
| 42% | MAINZ | 5 | Port in Germany at the confluence of the Rivers Rhine and Main |
| 42% | OXFORD | 6 | City in England at the confluence of the Rivers Thames and Cherwell |
| 41% | BURNLEY | 7 | Market town in Lancashire at the confluence of the Rivers Calder and Brun |
| 41% | STOCKPORT | 9 | Town in Greater Manchester at the confluence of the Rivers Goyt and Tame |
| 41% | LEOMINSTER | 10 | Market town in Herefordshire at the confluence of the Rivers Lugg and Kenwater |
| 41% | HUMBER | 6 | Large tidal estuary in northern England formed by the Rivers Ouse and Trent |
| 41% | KELSO | 5 | Market town in the Scottish Borders at the confluence of the Rivers Teviot and Tweed |
| 40% | UNISON | 6 | Trade union formed in 1993 by the amalgamation of COHSE, NALGO, and NUPE |
| 40% | GOOLE | 5 | Inland port in the East Riding of Yorkshire at the confluence of the Rivers Ouse and Don |
| 39% | MONMOUTH | 8 | Town in southeast Wales near the border with England at the confluence of the Rivers Wye and Monnow |
| 39% | EASTON | 6 | City at the confluence of the Lehigh and Delaware rivers |
| 39% | YUMA | 4 | City near the confluence of the Colorado and Gila rivers |
| 39% | IRAQ | 4 | Land of the Tigris and Euphrates |
| 39% | MEAD | 4 | Lake —, reservoir in Arizona and Nevada formed by the Hoover Dam across the Colorado River |