This seaport is the municipal seat of Monte Argentario along with the coastal port of Porto Ercole. The slopes to the seaside dominate the area with picturesque beauty.
Port Stefano is a lively bustling port that has been a fishing village for centuries. Much of the town was bombed during WWII and had to be rebuilt. Old stone was used for rebuilding which gives it an older appearance to match its long history.
The town is divided into four historical districts, each with its own coat of arms (gonfalone) banner:
Croce (Cross), whose nobles are called crociaioli. Their coat of arms depicts a gray seagull on a red background, above the red cross of Saint Andrew on a white background.
Fortezza (Fortress), whose nobles are called fortezzaioli. Their coat of arms depicts a Spanish fortress in gold on a red background on the left side, and a golden horse to the right on an amaranth background.
Pilarella, whose nobles are called pilarellai. Their coat of arms depicts a golden vase in a red background on the left, and a light gray dolphin to the right on a blue background.
Valle (Valley), whose nobles are called vallaioli. Their coat of arms depicts an axe and the lighthouse.