Location of Miami in Miami-Dade County, Florida.

Miami is a major city in the southeast corner of Florida, in the United States. Miami and the surrounding metropolitan area are situated on northern Biscayne Bay between the Everglades and the Atlantic Ocean. By population, Miami is the second-largest city in Florida (after Jacksonville), and the county seat and largest city of Miami-Dade County. It is also the largest city in the South Florida metropolitan area, which comprises Miami-Dade County, Broward County, and Palm Beach County, making up the largest metropolitan area in the Southeastern United States and the sixth largest in the country as a whole.

Miami was officially incorporated as a city on July 28, 1896, with a voting population of just over 300. In 1940, 172,172 people lived in the city. According to the 2000 census, the city proper had a population of 362,470, while the larger metropolitan area had a population over 5,000,000. The U.S. Census Bureau estimate of the population of Miami in 2004 was 379,724.

Miami's explosive population growth in recent years has been driven by internal migration from other parts of the country as well as by immigration. Greater Miami is regarded as a cultural melting pot, heavily influenced both by its very large population of ethnic Latin Americans and Caribbean islanders (many of them Spanish- or Haitian Creole-speaking).

The region's importance as an international financial and cultural center has elevated Miami to the status of world city; because of its cultural and linguistic ties to North, South, and Central America, and the Caribbean it is sometimes called "The Gateway of the Americas." Miami ranks along with Atlanta, Birmingham, Charlotte, and New Orleans, as one of the most important business centers in the Southeastern United States.