text: The original MSA for Miami, as defined by the OMB, included only Dade County (now Miami-Dade County). By 1995, the Miami-Hialeah and Fort Lauderdale-Hollywood-Pompano Beach MSAs had been merged into the Miami-Fort Lauderdale Consolidated MSA, consisting of the Miami Primary MSA (Dade County) and the Fort Lauderdale Primary MSA (Broward County). In 2003, the West Palm Beach-Boca Raton-Boynton Beach MSA was merged with the consolidated MSA to form the Miami-Fort Lauderdale-Miami Beach Metropolitan Statistical Area, consisting of: the Fort Lauderdale-Pompano Beach-Deefield Beach Metropolitan Division (Broward County), the Miami-Miami Beach-Kendall Metropolitan Division (Miami-Dade County), and the West Palm Beach-Boca Raton-Boynton Beach Metropolitan Division (Palm Beach County).
  Miami-Port Saint Lucie-Fort Lauderdale Combined Statistical Area
  The Census Bureau also defines a wider commercial region based on commuting patterns, the Miami-Port Saint Lucie-Fort Lauderdale Combined Statistical Area (CSA), with a population of 6,887,655 in 2020.
  , the CSA consists of three component metropolitan statistical areas (MSAs) and one Micropolitan statistical area (μSA):
  The Miami-Fort Lauderdale-West Palm Beach MSA (2020 pop. 6,138,333)
  The Port Saint Lucie MSA (2020 pop. 486,660), consisting of:
  Martin County (2020 pop. 158,431)p. 28
  Saint Lucie County (2020 pop. 329,226)p. 28
  The Sebastian-Vero Beach-West Vero Corridor MSA, coterminous with Indian River County (2020 pop. 159,788)
  The Key West-Key Largo μSA, coterminous with Monroe County (2020 pop. 82,874).
  The Okeechobee μSA, coterminous with Okeechobee County.
  When the CSA was defined in 2013, it included the Okeechobee μSA, but not the Key West μSA. In 2018 the Okeechobee μSA was removed from the CSA and the Key West μSA was added. The Okeechobee μSA was re-added to the CSA in 2023.