California is a state in the United States of America.

Percy Jackson and the Olympians

The Lightning Thief

Percy Jackson, Annabeth Chase and Grover Underwood go to Los Angeles, the entrance to the Underworld to convince Hades to return Zeus’ Master Bolt and Sally Jackson. After escaping the three end up on Santa Monica Beach.

The Titans Curse

Percy, along with Thalia Grace and Zoë Nightshade travel to San Francisco to save Annabeth and Artemis from the Titan strong hold at Mount Othrys.

The Heroes of Olympus

The Lost Hero

Jason Grace, Piper McLean, Leo Valdez and Gleeson Hedge arrive in San Francisco and climb Mount Diablo to rescue Tristan McLean from the Gigante Enceladus.

The Son of Neptune

Camp Jupiter, located near San Francisco, is present at the start and conclusion of the book.

The Mark of Athena

Camp Jupiter is the setting of the first few chapters of the book.

The Trials of Apollo

The Burning Maze

Apollo, Meg McCaffrey and Grover travel around Southern California for the book. They visit Palm Springs, Malibu, Los Angeles, Pasadena, and Santa Barbara. At the end of the book, Apollo and Meg travel on a plane to the Bay Area.


  • Southern California is colloquially known as "SoCal".
Locations (CHB)
Magical Locations: Aeolia | Camp Half-Blood | Camp Jupiter | Cave of Trophonius | C.C.'s Spa and Resort | Daedalus' Workshop | Lotus Hotel and Casino | Mount Othrys | Ogygia | Olympus | Pan's Cave | Sea of Monsters | The Labyrinth | Tartarus | Underworld | Waystation
Cities, States, and Towns: Alaska | Bar Harbor | Bologna | Chicago | Dalmatia | Denver | Detroit | Florida | Gila Claw | Indianapolis | Jamestown | Miami | Montauk | New Mexico | New York City | Omaha | Palm Springs | Quebec City | San Francisco | St. Augustine | St. Louis | Texas | Utah | Vancouver | Venice | Westport
Countries: Canada | Croatia | France | Greece | Italy | Portugal | United States of America
Other Locations: Apennine Mountains | Aunty Em's Gnome Emporium | Carlsbad Caverns | Crusty's Water Bed Palace | Empire State Building | Gateway Arch | Grand Canyon | Greece | Hoover Dam | Junkyard of the Gods | Mississippi River | Mount Diablo | Mount Etna | Mount Saint Helens | Mount Tamalpais | Pikes Peak | Polyphemus' Island | Puerto Rico | ROFL | Rome | Triple G Ranch | United States Virgin Islands | Waterland