The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 states and a federal …

Learn about the United States, including American holidays, the American flag, presidents, census data, and the U.S. Constitution.

1 day ago · United States of America Map showing the states and capitals of the United States. Who are historically the U.S.’s allies? The U.S. maintains alliances with dozens of countries …

Oct 1, 2025 · Visit the Definitions and Notes page to view a description of each topic.

Jan 22, 2024 · The United States, officially known as the United States of America (USA), shares its borders with Canada to the north and Mexico to the south. To the east lies the vast Atlantic …

The USA borders Canada in the north; its southern 3,155 km long border to Mexico is partly furnished with a great wall (or fence). The United States also shares maritime borders with the …

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Learn about the United States, including American history, the president, holidays, the American flag, census data, and more. Get contact information for U.S. federal government agencies, …

The United States of America (USA), for short America or United States (U.S.) is the third or the fourth-largest country in the world. It is a constitutional based republic located in North …

1 day ago · Besides the 48 conterminous states that occupy the middle latitudes of the continent, the United States includes the state of Alaska, at the northwestern extreme of North America, …