U.S. Mail is a mailing service featured in Grand Theft Auto: San Andreas. Description U.S. Mail have post offices located in Ganton and Willowfield, Los Santos. The stores are inaccessible to CJ and play no role in the storyline whatsoever. Gallery U.S. Mail in Ganton.U.S. Mail in Willowfield.Add a photo to this gallery Retrieved from "https://gta.fandom.com/wiki/U.S._Mail?oldid=1175661" Categories: Businesses Businesses in GTA San Andreas Languages: Deutsch Español Polski Community content is available under CC-BY-SA unless otherwise noted.