Three Largest Countries in North America by Land Area

By total area (land + inland water):

1. Canada – 9,984,670 km² (3,855,100 mi²)
2. United States – 9,833,517 km² (3,796,742 mi²)
3. Mexico – 1,964,375 km² (758,449 mi²)

Note: Canada > US by total area; US > Canada by land area only (Canada has more freshwater). Greenland (2.16M km²) is part of North America geographically but politically Danish.