The area of the continental United States is approximately 3.1 million square miles (8.1 million square kilometers). This measurement includes the 48 contiguous states and the District of Columbia but excludes Alaska, Hawaii, and U.S. territories. The continental U.S. spans a vast and diverse landscape, from the Atlantic Ocean in the east to the Pacific Ocean in the west, and from Canada in the north to Mexico in the south. This extensive area encompasses a wide variety of climates, terrains, and ecosystems, making it one of the most geographically diverse countries in the world.
Menu