What Is the Treasure Coast? Counties, the 1715 Fleet and Every Town With Its Population

What is the Treasure Coast? In common use it means Indian River, St. Lucie and Martin counties, but the Treasure Coast Regional Planning Council’s district in Florida law adds Palm Beach County. This guide explains both, the 1715 Spanish treasure fleet that secondary sources tie to the name, all 13 cities and towns with their 2020 and 2025 populations, unincorporated communities such as Palm City, and which airport has airline service.