Sausalito was a municipality in the state of California on Earth, just north of San Francisco across the Golden Gate.
In the late 20th century, Sausalito was home to the Cetacean Institute. (TOS movie: Star Trek IV: The Voyage Home)
By the mid 22nd century the Vulcan Compound, a Vulcan residential and diplomatic facility, was located in Sausalito. (ENT episode: "Broken Bow")
After escaping prison, Arik Soong reached Sausalito before being recaptured. (ENT episode: "Borderland")
In 2373, Dega Val suggested that he, Rahim al Nabil, Tara Bassette and Stoek take Nog to a bistro in Sausalito for ice cream and coffee after Nog beat the Kobayashi Maru scenario. (DS9 short story: "Best Tools Available")