| Code | Name | Continent | Region | Population |
| CHL | Chile | South America | South America | 15,211,000 |
| CHN | China | Asia | Eastern Asia | 1,277,558,000 |
| CIV | Côte d’Ivoire | Africa | Western Africa | 14,786,000 |
| CMR | Cameroon | Africa | Central Africa | 15,085,000 |
| COD | Congo, The Democratic Republic of the | Africa | Central Africa | 51,654,000 |
| COG | Congo | Africa | Central Africa | 2,943,000 |
| COK | Cook Islands | Oceania | Polynesia | 20,000 |
| COL | Colombia | South America | South America | 42,321,000 |
| COM | Comoros | Africa | Eastern Africa | 578,000 |
| CPV | Cape Verde | Africa | Western Africa | 428,000 |
| CRI | Costa Rica | North America | Central America | 4,023,000 |
| CUB | Cuba | North America | Caribbean | 11,201,000 |
| CXR | Christmas Island | Oceania | Australia and New Zealand | 2,500 |
| CYM | Cayman Islands | North America | Caribbean | 38,000 |
| CYP | Cyprus | Asia | Middle East | 754,700 |
| CZE | Czech Republic | Europe | Eastern Europe | 10,278,100 |
| DEU | Germany | Europe | Western Europe | 82,164,700 |
| DJI | Djibouti | Africa | Eastern Africa | 638,000 |
| DMA | Dominica | North America | Caribbean | 71,000 |
| DNK | Denmark | Europe | Nordic Countries | 5,330,000 |