| Country | City | Population | % Correct |
|---|---|---|---|
| Denmark | Copenhagen | 1,345,562 | 97%
|
| Germany | Cologne | 1,073,096 | 92%
|
| Moldova | Chisinau | 532,513 | 89%
|
| Ireland | Cork | 130,119 | 84%
|
| United Kingdom | Cardiff | 348,546 | 81%
|
| Belgium | Charleroi | 202,421 | 78%
|
| United Kingdom | Coventry | 345,324 | 76%
|
| Spain | Córdoba | 322,327 | 70%
|
| Romania | Cluj-Napoca | 286,598 | 65%
|
| Italy | Catania | 298,762 | 62%
|
| Spain | Cádiz | 114,442 | 59%
|
| United Kingdom | Cambridge | 152,725 | 59%
|
| Romania | Constanța | 263,707 | 59%
|
| France | Caen | 107,250 | 57%
|
| Germany | Chemnitz | 243,105 | 54%
|
| Italy | Cagliari | 148,117 | 51%
|
| Portugal | Coimbra | 106,655 | 51%
|
| Spain | Cartagena | 215,826 | 49%
|
| Poland | Częstochowa | 213,107 | 49%
|
| United Kingdom | Chelmsford | 110,606 | 43%
|
| United Kingdom | Cheltenham | 115,959 | 43%
|
| France | Clermont-Ferrand | 147,284 | 43%
|
| United Kingdom | Colchester | 130,248 | 43%
|
| Romania | Craiova | 234,140 | 43%
|
| Ukraine | Chernihiv | 282,747 | 41%
|
| United Kingdom | Crawley | 120,549 | 38%
|
| Russia | Cheboksary | 497,807 | 35%
|
| Spain | Castellón de la Plana | 172,637 | 32%
|
| Turkey | Çorlu | 308,073 | 32%
|
| Ukraine | Cherkasy | 269,836 | 27%
|
| Ukraine | Chernivtsi | 264,298 | 27%
|
| Poland | Chorzów | 104,193 | 27%
|
| Russia | Cherepovets | 305,185 | 24%
|
| Russia | Cherkessk | 113,226 | 11%
|
| Turkey | Çerkezköy | 141,847 | 5%
|