French Guiana, as an overseas department of France, is fully integrated into the La Poste network. It utilizes the French Code Postal system, which facilitates direct logistical links with mainland Europe and other overseas territories. This five-digit numeric system is the standard for mail processing across the Amazonian coastal settlements and inland communes.
The Code Postal in French Guiana contains five digits. It consistently begins with the department prefix \"973\", followed by two digits that designate the specific commune or post office location.