California (South)

California South, colloquially known as SoCal, governs the southern half of California. See California (North) for the northern half. It holds a separate tournament due to distance issues.

History
The state has participated in Science Olympiad since 1986. It can claim 13 national titles, the most of any state (with Ohio also tying at 13), and 12 of them from Division C (with Ohio the runner-up at 6): one from Gompers Secondary School (Division B), two from La Jolla High School (Division C), and ten from Troy High School (Division C). Troy High School won the last 20 state tournaments in Division C while Muscatel Middle School won the last 7 state tournaments in Division B.

Past State Champions
This is a record of the past state champions and runners up, and their respective places at the national competition, if applicable. Scores at the state competition may be shown in parentheses. Past national champions are bolded. (*In 2014 two events were not included in the final scores)

Invitationals

 * Ladera Vista Invitational (B) - Saturday, December 15, 2018 - Ladera Vista Junior High School -
 * Carmel Valley Invitational (B) - Saturday, January 12, 2019 - Canyon Crest Academy -
 * Kraemer Invitational (B) Saturday, January 26, 2019 - Kraemer Middle School -
 * Troy Invitational (C) - Saturday, December 8, 2018 - Troy High School -
 * Cerritos High School Invitational (C) - Saturday, December 15, 2018 - Cerritos High School -
 * Great Oak School Invitational (C) - Saturday, January 19, 2019 - Great Oak High School -
 * Polytechnic School Invitational (C) - Saturday, February 2, 2019 - Polytechnic School -
 * Mesa-Wilson Invitational (B&C) - Saturday, January 19, 2019 - Glen A. Wilson High School - ,

Regional Competitions

 * Inland Empire Regional - March 2, 2019 (Ramona High School)
 * Los Angeles Regional - January 26, 2019 (Antelope Valley College), February 23, 2019 (Rio Hondo College)
 * Orange County Regional - February 9, 2019, University of California, Irvine
 * San Diego Regional - February 9, 2019 (B - Carlsbad High School), March 16, 2019 (C - University of San Diego)

State Competition

 * 2002 location: California State Long Beach April 13, 2002
 * 2004 location: California State Polytechnic University, Pomona May 1, 2004
 * 2005 location: Long Beach City College April 16, 2005
 * 2006 location: Tesoro High School, Rancho Santa Margarita April 1, 2006
 * 2007 location: California State Long Beach April 14, 2007
 * 2008 location: California State Long Beach April 12, 2008
 * 2009 location: California State Long Beach April 18, 2009
 * 2010 location: Valencia High School, Placentia April 10, 2010
 * 2011 location: Canyon High School, Anaheim April 9, 2011
 * 2012 location: Canyon High School, Anaheim April 14, 2012
 * 2013 location: Canyon High School, Anaheim April 6, 2013
 * 2014 location: Canyon High School, Anaheim April 5, 2014
 * 2015 location: Canyon High School, Anaheim April 4, 2015
 * 2016 location: California Institute of Technology (Caltech), April 2, 2016
 * 2017 location: California Institute of Technology (Caltech) and Polytechnic School, April 8, 2017
 * 2018 location: California Institute of Technology (Caltech) and Polytechnic School, April 7, 2018
 * 2019 location: California Institute of Technology (Caltech) and Polytechnic School, April 6, 2019

Inland Empire Region

 * Amelia Earhart Middle School
 * Cucamonga Middle School
 * Gage Middle School
 * Margarita Middle School
 * Miller Middle School
 * Moore Middle School
 * Riverside Stem Academy
 * Upland Junior High School
 * Van Avery Prep School

Los Angeles County Region

 * Carmenita Middle School
 * Cedarlane Middle School
 * Chaparral Middle School
 * Dana Middle School
 * El Rodeo Middle School
 * Fedde Middle School
 * Gage Middle School
 * Garvey Middle School
 * Gidley Middle School
 * Hawthorne Middle School
 * Hermosa Valley Middle School
 * High Desert Middle School
 * Hillview Middle School
 * Horace Mann Middle School
 * Joe Walker Middle School
 * Lakeside Middle School
 * Lassalette Middle School
 * Lone Hill Middle School
 * Los Amigos Middle School
 * Los Nietos Middle School
 * Manhattan Beach Middle School
 * Matthew Gage Middle School
 * Mesa Robles Middle School
 * Milikan Middle School
 * Muscatel Middle School
 * Newton Middle School
 * Orange Grove Middle School
 * Ramona Middle School
 * Rancho Pico Middle School
 * Rincon Middle School
 * Rio Norte Junior High School
 * Santa Fe Middle School
 * Sierra Vista Middle School (Los Angeles)
 * South Pasadena Middle School
 * South Pointe Middle School
 * Sparks Middle School
 * Suzanne Middle School
 * Valinda Middle School
 * Westridge Middle School
 * Will Rogers Middle School

Orange County Region

 * Beechwood School
 * Cerro Villa Middle School
 * El Rancho Charter Middle School
 * Jeffrey Trail Middle School
 * Kraemer Middle School
 * Ladera Ranch Middle School
 * Ladera Vista Junior High School
 * Marco Forster Middle School
 * McAuliffe Middle School
 * Oak Middle School
 * Orange County School of the Arts
 * Pioneer Middle School
 * Rancho San Joaquin Middle School
 * Robert C. Fisler Elementary School
 * Santiago Charter Middle School
 * Sierra Vista Middle School
 * Thurston Middle School
 * Utt Middle School
 * Venado Middle School
 * Vinyard Christian School

San Diego County Region

 * Aviara Oaks Middle School
 * Bear Valley Middle School
 * Bell Mountain Middle School
 * Bernardo Heights Middle School
 * Black Mountain Middle School
 * Calavera Hills Middle School
 * Carmel Del Mar Elementary School
 * Carmel Valley Middle School
 * Design39Campus
 * Earl Warren Middle School
 * Francis Parker Middle School
 * Grant Middle School
 * Hilltop Middle School
 * Lewis Middle School
 * Marshall Middle School
 * Meadowbrook Middle School
 * Mesa Verde Middle School
 * Millenial Tech Middle School
 * Nativity Prep Academy
 * Oak Valley Middle School
 * Ocean Air Elementary School
 * Pacific Ridge School
 * Pacific Trails Middle School
 * Preuss School
 * Sage Canyon Elementary School
 * Saint Vincent de Paul School
 * Solana Pacific Elementary School
 * Solana Ranch Elementary School
 * Spring Valley Middle School
 * Standley Middle School
 * Sycamore Ride Elementary School
 * Torrey Hills Elementary School
 * Twin Peaks Middle School
 * Valley Middle School
 * Warren-Walker Middle School

Inland Empire Region

 * Chaffey High School
 * Chaparral High School
 * Etiwanda High School
 * Great Oak High School
 * Martin Luther King High School
 * Montclair High School
 * Murrieta Valley High School
 * Ramona High School
 * Rancho Cucamonga High School
 * Redlands East Valley High School
 * Riverside Polytechnic High School
 * Temecula Valley High School
 * Vista Murrieta High School

Los Angeles County Region

 * Ahambra High School
 * Arcadia High School
 * Arroyo High School
 * Beverly Hills High School
 * Brentwood High School
 * Charter Oak High School
 * Claremont High School
 * Diamond Bar High School
 * Francisco Bravo High School
 * Los Altos High School
 * Mark Keppel High School
 * North Hollywood High School
 * Palos Verdes High School
 * Peninsula High School
 * Pioneer High School
 * PV Peninsula High School
 * Quartz Hill High School
 * Ramona Convent High School
 * Redondo Union High School
 * Rowland High School
 * Rosemead High School
 * Royal High School
 * Roybal Learning Center
 * San Dimas High School
 * San Gabriel High School
 * San Marino High School
 * South Pasadena High School
 * South Torrance High School
 * St. Lucy's Priory High School
 * Temple City High School
 * Valencia High School
 * Valley Christian High School
 * Viewpoint High School
 * Walnut High School
 * Westlake High School
 * Westridge High School
 * Wilson High School
 * Workman High School

Orange County Region

 * Aliso Niguel High School
 * Canyon High School
 * Irvine High School
 * Northwood High School
 * OCSA (Orange County School of the Arts)
 * Portola High School
 * Troy High School
 * University High School
 * Valencia High School
 * Woodbridge High School

San Diego County Region

 * Canyon Crest Academy High School
 * Carlsbad High School
 * Francis Parker High School
 * Mount Carmel High School
 * Rancho Bernardo High School
 * Sage Creek High School
 * Torrey Pines High School
 * University City High School
 * Westview High School

Links

 * Southern California Science Olympiad
 * Inland Empire Science Olympiad
 * Los Angeles County Science Olympiad
 * Orange County Science Olympiad
 * San Diego Science Olympiad