Hialeah is a city in Miami-Dade County, Florida, United States. With the population of 233,339 at the 2019 United States Census, Hialeah is the sixth-largest city in Florida. It is a principal city of the Miami metropolitan area, which was home to an estimated 6,198,782 people at the 2018 census. It is located west-northwest of Miami, and is the only place in the county, other than Homestead, Florida, to have its own street grid numbered separately from the rest of the county (which is otherwise based on Miami Avenue at Flagler Street in downtown Miami, the county seat).
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