| km² | River Basin | Population | City | % Correct |
|---|---|---|---|---|
| 148 k | Elbe | 3.677.472 | Berlin | 99%
|
| 1433 k | Volga | 13.010.112 | Moscow | 99%
|
| 75.4 k | Seine | 2.145.906 | Paris | 99%
|
| 510 k | Dnieper | 2.952.301 | Kyiv | 98%
|
| 70.8 k | Tagus | 3.277.451 | Madrid | 98%
|
| 73.7 k | Po | 1.354.196 | Milan | 97%
|
| 802 k | Danube | 1.982.442 | Vienna | 97%
|
| 193 k | Vistula | 1.860.281 | Warsaw | 97%
|
| 281 k | Neva | 5.601.911 | Saint Petersburg | 96%
|
| 98.1 k | Rhone | 522.228 | Lyon | 92%
|
| 185 k | Rhine | 1.114.745 | Amsterdam | 89%
|
| 57.1 k | Guadalquivir | 684.340 | Sevilla | 89%
|
| 85.6 k | Daugava | 620.974 | Riga | 85%
|
| 92.5 k | Neman | 357.510 | Vilnius | 80%
|
| 55.8 k | Garonne | 498.003 | Toulouse | 79%
|
| 50.2 k | Göta älv | 655.429 | Gothenburg | 78%
|
| 84.8 k | Ebro | 681.430 | Zaragoza | 71%
|
| 117 k | Loire | 320.732 | Nantes | 69%
|
| 46.3 k | Weser | 563.290 | Bremen | 61%
|
| 73.2 k | Dniester | 532.513 | Chisinau | 61%
|
| 437 k | Don | 1.421.125 | Kharkiv | 57%
|
| 119 k | Oder | 672.929 | Łódź | 51%
|
| 52.4 k | Kuban | 1.099.344 | Krasnodar | 40%
|
| 97.3 k | Douro | 297.370 | Valladolid | 37%
|
| 53.5 k | Maritsa | 319.612 | Plovdiv | 30%
|
| 56.2 k | Narva | 193.082 | Pskov | 23%
|
| 67.0 k | Guadiana | 151.048 | Badajoz | 17%
|
| 211 k | Ural | 543.645 | Orenburg | 15%
|
| 63.6 k | Southern Bug | 470.011 | Mykolaiv | 14%
|
| 357 k | Northern Dvina | 313.944 | Vologda | 10%
|