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, departments, corporations, instrumentalities, and government-sponsored enterprises. Find websites, email, phone numbers, addresses, and more.

The United States is a country in North America that is a federal republic of 50 states. 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, and the island state of Hawaii, in the mid-Pacific Ocean.

We the People of the United States, in Order to form a more perfect Union, establish Justice, insure domestic Tranquility, provide for the common defence, promote the general Welfare, and secure the Blessings of Liberty to ourselves and our Posterity, do ordain and establish this Constitution for the United States of America.

In casual writing, when United States is functioning as a noun (as in, “We are traveling to the U.S.”), it’s a matter of personal preference. You can either spell out United States or abbreviate it, with periods or without.

The U.S. is a federal republic with two legislative houses; its head of state and government is the president. The territory was originally inhabited for several thousand years by numerous American Indian peoples who had probably migrated from Asia.

The United States of America is the world's third largest country in size and nearly the third largest in terms of population. Located in North America, the country is bordered on the west by...

Learn about the United States, including American history, the president, holidays, the American flag, census data, and more.

Find government benefits, services, agencies, and information at USA.gov. Contact elected officials. Learn about passports, Social Security, taxes, and more.

2023年11月7日 · 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 America, bordering both the North Atlantic Ocean and the North Pacific Ocean, between Mexico and Canada .

2025年1月20日 · WASHINGTON − Donald Trump was sworn in Monday as the 47th president of the United States, returning to the White House after overcoming four criminal indictments and two assassination attempts ...