Portopetro's early history
There are records of Portopetro dating back to between 1281 and 1298, coinciding with the delineation of the estates which bordered the road between Santanyí and this town. Portopetro was a trading port dating back to the 15th century, used for exporting Santanyí stone and importing wheat between the 15th and the early 19th centuries.
By the 17th century there was a watchtower, Torre d'en Bossa, built to keep an eye out for pirates, and there was even a customs office to control maritime trade.
Modern times
At the end of the 19th century, trading came to a halt. Portopetro has since become a fishing port.
The area where Portopetro now resides was originally a part of Sa Punta Estate but the beginning of the 20th century saw the land divided up and sold off. After this, the first hamlet developed, and, since then, the population rose from less than 100 to more than 500 over the course of the 20th century.