| # | Population | Country | Hint | City | % Correct |
|---|---|---|---|---|---|
| 1 | 213,000 | Spain | Flamenco, Sherry, Horses | Jerez de la Frontera | 75%
|
| 3 | 135,000 | Sweden | Vättern Lake | Jönköping | 53%
|
| 5 | 110,000 | Germany | Friedrich Schiller | Jena | 48%
|
| 4 | 115,000 | Spain | The Arabs called it Yayyan | Jaén | 42%
|
| 2 | 139,000 | Finland | In Central Finland | Jyväskylä | 40%
|
| 9 | 76,000 | Finland | Eastern Finland, Karelia | Joensuu | 28%
|
| 14 | 49,000 | Latvia | Gulf of Riga town in the Art Nouveau style | Jūrmala | 28%
|
| 11 | 57,000 | Latvia | Largest town in Zemgale, German: Mitau | Jelgava | 24%
|
| 16 | 43,000 | United Kingdom | 1936 march against unemployment | Jarrow | 22%
|
| 13 | 51,000 | Czech Republic | Capital of the Vysočina Region | Jihlava | 20%
|
| 8 | 81,000 | Poland | The name means "Deer Mountain" in Polish | Jelenia Góra | 16%
|
| 15 | 45,000 | Czech Republic | Mountain resort in the Jizera Mountains | Jablonec nad Nisou | 13%
|
| 7 | 90,000 | Poland | German: Bad Königsdorf-Jastrzemb | Jastrzębie-Zdrój | 13%
|
| 17 | 42,000 | Finland | Jean Sibelius, "Ainola" | Järvenpää | 11%
|
| 20 | 38,000 | France | Largest suburb of Tours | Joué-lès-Tours | 11%
|
| 6 | 93,000 | Poland | Silesian Highlands, Przemsza River | Jaworzno | 10%
|
| 10 | 74,000 | Sweden | Part of the Stockholm urban area | Järfälla | 9%
|
| 12 | 51,000 | Belgium | Brussels suburb, Vrije Universiteit | Jette | 9%
|
| 19 | 38,000 | Poland | South-eastern Poland | Jaroslaw | 8%
|
| 18 | 40,000 | Italy | Comune in Ancona Province, Frederick II | Jesi | 4%
|