California is a region of the North American continent on the planet Earth, with boundaries that were created as the area was settled as a geopolitical subdivision of the United States of America nation.


On April 3, 1855, Montgomery Scott materialized in southern California via the use of the time travel cabinet. He appeared within a stagecoach just before it was robbed. He joined Billy Clancey and his outlaw gang in order to track down a stolen weapon called the N-cycle bomb, but Clancey stole Scott's phaser and used it to attack a wagon train. The trail for the bomb dead-ended with a patent medicine salesman in a frontier town, and then Scott was returned to 2266.

On April 3, 1955, James T. Kirk materialized in southern California one hundred years later on the same spot as Scott. He appeared in a movie production being shot on location in a desert. Kirk was filmed as he pursued time traveler Andres on a highway on ancient Roman chariots by Hollywood director Bovrille. Kirk returned Andres and the N-cycle bomb to 2266. (TOS comic: "A Bomb in Time")

In 2024, California Governor Robert Chen ordered National Guard troops to storm the San Francisco Sanctuary District during the Bell Riots. (DS9 episode: "Past Tense, Part II")

In 2155, Trip Tucker compared Ych'a's description of Achernar II to Gold Rush era California or the Yukon Territory. (ENT novel: Beneath the Raptor's Wing)

Thomas Eugene Paris was born in Portola Valley, California, in 2346. (VOY novels: Mosaic, Pathways)

In 2375, California's government declared San Francisco a disaster area at the request of the city's mayor after the Breen attack. (TNG short story: "Eleven Hours Out")

Starfleet Command, Starfleet Academy, and Starfleet Medical Academy are located in the city of San Francisco, California.


San FranciscoLos AngelesHollywoodSan DiegoMojave



Geographical regions of the United States of America
States and districts AlabamaAlaskaArizonaArkansasCaliforniaCibolaColoradoDistrict of ColumbiaConnecticutDelawareFloridaGeorgiaGuamHawaiiIdahoIllinoisIndianaIowaKansasKentuckyLouisianaMaineMarylandMassachusettsMichiganMinnesotaMississippiMissouriMontanaNebraskaNevadaNew HampshireNew JerseyNew MexicoNew YorkNorth CarolinaNorth DakotaOhioOklahomaOregonPennsylvaniaPuerto RicoRhode IslandSouth CarolinaSouth DakotaTennesseeTexasUtahVermontVirginiaWashingtonWest VirginiaWisconsinWyoming UFP seal Seal of United Earth USA52stars
Geographical and cultural regions MidwestNew EnglandPacific NorthwestThe South
Los Angeles/Los Angeles Island Hollywood (Hollywood BowlMediaMagixSchlitz Periodicals) • UCLA UFP seal

Seal of United Earth

San Francisco Candlestick ParkDeLaGuardia TowerFederation HallFisherman's WharfFSA Detention FacilityKearny StreetMercy HospitalMoffett FieldPalace of Fine ArtsThe Presidio (San Francisco National CemeteryStarfleet AcademyStarfleet CommandStarfleet HeadquartersStarfleet IntelligenceStarfleet Medical HeadquartersStarfleet Medical AcademyStarfleet War MemorialTucker Memorial Building) • Romanova BuildingSan Francisco National CemeterySanctuary DistrictStarportStarship's WharfTransamerica PyramidWorld War III Memorial
other places: Alameda (Alameda Naval Base) • Alcatraz (Alcatraz Children's Park) • BarstowBerkeley (UC Berkeley) • Caltech (Jet Propulsion Laboratory) • Golden Gate (Golden Gate BridgeGolden Gate Park) • Life CityLone PineMare Island (San Francisco Fleet Yards) • Mill ValleyNew Pacific CityOaklandPortola ValleyMojaveSan DiegoSan Francisco BaySanta CruzSausalito (Cetacean InstituteIrving StreetVulcan Compound) • Yosemite National Park (El Capitan)


Hollywood, California, is the home of Paramount Pictures, and thus the location of the majority of Star Trek production since its inception, as well as home to many of those responsible for that production.

Other Californians of note for their work beyond filmed Star Trek:

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