United States of America The United States of America is a large and diverse country located primarily in North America, made up of 50 states and a federal district, Washington, D.C., its capital. Founded in 1776, it is a federal republic with a democratic system of government based on a constitution that guarantees individual rights and freedoms. The country is known for its cultural diversity, economic strength, technological innovation, and global influence in politics, entertainment, science, and business. With varied landscapes ranging from mountains and forests to deserts and coastlines, the United States is home to people from many different backgrounds, contributing to its dynamic and multicultural society.