Jan 11, 2026
What is the size of the US
The United States covers roughly 9.15 million square kilometres (about 3.53 million square miles) of land, with a larger total surface area when inland water is included—commonly reported near 3.79 to...
U.S.-Canada border measurement methods
Different methods for measuring the length of the U.S.-Canada border, including land-only and hydrographic measurements.