| Rank | Population | Country | Hint | City | % Correct |
|---|---|---|---|---|---|
| 4 | 132,000 | Austria | 1964 and 1976 Winter Olympics | Innsbruck | 94%
|
| 14 | 47,000 | United Kingdom | Known as the capital of the Scottish Highlands | Inverness | 75%
|
| 2 | 147,000 | United Kingdom | Suffolk County | Ipswich | 69%
|
| 1 | 290,000 | Romania | "The Moldavian Capital" | Iași | 57%
|
| 3 | 132,000 | Germany | Audi, Media Markt | Ingolstadt | 51%
|
| 9 | 70,000 | Italy | San Marino Grand Prix, Ayrton Senna | Imola | 39%
|
| 7 | 85,000 | Greece | Biggest city in north-western Greece | Ioánnina | 24%
|
| 11 | 61,000 | Spain | Basque city very close to France | Irún | 19%
|
| 5 | 94,000 | Germany | Ice hockey team "Roosters" | Iserlohn | 18%
|
| 12 | 60,000 | France | Quartier Asiatique | Ivry-sur-Seine | 16%
|
| 10 | 67,000 | France | Paris suburb on the left bank of the Seine | Issy-les-Moulineaux | 14%
|
| 6 | 86,000 | Belgium | Dutch: Elsene | Ixelles | 14%
|
| 20 | 33,000 | United Kingdom | Nicola Sturgeon | Irvine | 11%
|
| 15 | 43,000 | France | Étang de Berre, near Marseille | Istres | 11%
|
| 19 | 34,000 | Netherlands | Hollandse IJssel | IJsselstein | 9%
|
| 16 | 42,000 | Italy | Cultivation of flowers and olives, Italian riviera | Imperia | 9%
|
| 8 | 74,000 | Poland | Saltwater baths and salt mines | Inowrocław | 9%
|
| 17 | 40,000 | United Kingdom | River Erewash, The American Adventure | Ilkeston | 4%
|
| 13 | 51,000 | Germany | 2015 train collision | Ibbenbüren | 3%
|
| 18 | 39,000 | Spain | European Balloon Festival | Igualada | 1%
|