Miami-Dade County is a
county located in the southeastern part of the
state of
Florida. As of the
2010 census, the county had a population of 2,496,435,
making it the most populous county in Florida and the
seventh-most populous county in the United States.
It is also Florida's third largest county in terms of land area, with 1,946 square miles.
The county contains approximately half of the
Miami metropolitan area's population and several of its largest cities. The
county seat is
Miami.