The list of Top 10 Countries By Maximum Land Boundaries (in km) as per CIA World Factbook, 2011 (Central Intelligence Agency).
| S.No. | Country | Land Boundaries (km) |
| 1 | China | 22,117 |
| 2 | Russia | 20,242 |
| 3 | Brazil | 16,885 |
| 4 | India | 14,103 |
| 5 | European Union | 12,441 |
| 6 | Kazakhstan | 12,185 |
| 7 | United States | 12,034 |
| 8 | Congo, Democratic Republic | 10,730 |
| 9 | Argentina | 9,861 |
| 10 | Canada | 8,893 |
