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| Academy of Scientific Exploration / CCLA | C | 1 | 1 | SoCal Joint Regional | LAUSD - North East | Los Angeles |
| Alvarado Intermediate School | B | 1 | 1 | SoCal Joint Regional | Rowland Unified School District | Los Angeles County |
| Amelia Earhart Middle School | B | 1 | | SoCal Joint Regional | Riverside Unified School District | Riverside |
| Arcadia High School | C | 2 | 2 | SoCal Joint Regional | Arcadia Unified School District | Los Angeles County |
| Beacon Park School | B | 2 | | SoCal Joint Regional | Irvine Unified School District | Orange |
| Bell Gardens High School | C | 1 | | SoCal Joint Regional | Montebello.Unified School District | Los Angeles |
| Beverly Hills High School | C | 1 | | SoCal Joint Regional | Beverly Hills Unified School District | Los Angeles |
| Brea Junior High | B | 1 | 1 | SoCal Joint Regional | Brea Olinda Unified | Orange |
| Brea Olinda High School | C | 1 | | SoCal Joint Regional | Brea Olinda | Orange |
| Canyon High School | C | 2 | | SoCal Joint Regional | Orange Unified | Orange |
| Cerritos High School | C | 2 | | SoCal Joint Regional | ABC Unified School District | Los Angeles |
| Chaparral High School | C | 2 | | SoCal Joint Regional | Temecula Valley Unified School District | Riverside |
| Chaparral Middle School | B | 2 | | SoCal Joint Regional | Walnut Valley Unified | Los Angeles |
| Corona del Mar High School | C | 1 | | SoCal Joint Regional | NMUSD | Orange |
| Crean Lutheran High School | C | 1 | 1 | SoCal Joint Regional | Private school | Orange County |
| Cypress High School | C | 1 | | SoCal Joint Regional | Anaheim Union High School District | Orange County |
| Dana Middle School | B | 3 | | SoCal Joint Regional | Arcadia Unified School District | Los Angeles |
| Diamond Bar High School | C | 1 | 1 | SoCal Joint Regional | Walnut Valley Unified School District | Los Angeles County |
| Edgewood High School | C | 1 | | SoCal Joint Regional | West Covina Unified | Los Angeles |
| Edgewood Middle School | B | 1 | | SoCal Joint Regional | West Covina Unified | Los Angeles |
| El Dorado High School | C | 2 | | SoCal Joint Regional | Placentia-Yorba Linda Unified School District | Orange County |
| El Rancho Charter | B | 2 | | SoCal Joint Regional | Orange Unified | Orange |
| Eleanor Roosevelt | C | 1 | | SoCal Joint Regional | Corona Norco Unified School District | Riverside |
| Etiwanda High School | C | 1 | | SoCal Joint Regional | Chaffey Joint Union High School District | San Bernardino |
| Fairmont Private Schools - Anaheim Hills Campus | B | 2 | | SoCal Joint Regional | Private | Orange |
| Flintridge Preparatory School | C | 1 | 1 | SoCal Joint Regional | independent | Los Angeles County |
| Flintridge Preparatory School (Div B) | B | 1 | 1 | SoCal Joint Regional | independent | Los Angeles County |
| Flintridge Sacred Heart Academy | C | 1 | | SoCal Joint Regional | Flintridge Sacred Heart Academy | Los Angeles |
| Foothill High School | C | 2 | | SoCal Joint Regional | Tustin Unified School District | Orange County |
| Fountain Valley High School | C | 1 | | SoCal Joint Regional | Huntington Beach Union High School District | Orange County |
| Fulton & Alsbury Academy of Arts and Engineering | B | 1 | | SoCal Joint Regional | Lancaster | Los Angeles |
| Garden Grove High School | C | 1 | 1 | SoCal Joint Regional | Garden Grove Unified School District | Orange |
| Garvey Intermediate | B | 1 | | SoCal Joint Regional | Garvey School District | Los Angeles |
| Glen A. Wilson High School | C | 2 | | SoCal Joint Regional | Hacienda La Puente Unified | Los Angeles |
| Golden Valley HS | C | 1 | 1 | SoCal Joint Regional | Wm. S. Hart | Los Angeles |
| Great Oak High School | C | 3 | | SoCal Joint Regional | Temecula Valley USD | Riverside |
| Gretchen Whitney High School | C | 2 | | SoCal Joint Regional | ABC Unified School District | Los Angeles County |
| Harvard-Westlake School | C | 2 | | SoCal Joint Regional | Independent | Los Angeles |
| Harvard-Westlake School | B | 1 | | SoCal Joint Regional | Independent | Los Angeles |
| Hermosa Valley School | B | 1 | | SoCal Joint Regional | Hermosa Beach City School District | Los Angeles |
| Huntington Middle School | B | 2 | 2 | SoCal Joint Regional | San Marino Unified School District | LA County |
| Jeffrey Trail Middle School | B | 4 | | SoCal Joint Regional | Irvine Unified School District | Orange County |
| John W. North High School | C | 1 | | SoCal Joint Regional | Riverside Unified School District | Riverside |
| Kraemer Middle School | B | 2 | 2 | SoCal Joint Regional | Placentia Unified | Orange |
| La Canada High School | C | 1 | | SoCal Joint Regional | La Canada Unified School District | Los Angeles |
| La Habra High School | C | 1 | | SoCal Joint Regional | Fullerton Joint Union High School District | Orange County |
| La Mirada High School | C | 1 | | SoCal Joint Regional | Norwalk-La Mirada Unified School District | United States |
| La Puente High School | C | 1 | | SoCal Joint Regional | Hacienda La Puente Unified School District | Los Angeles |
| Lakeside Middle School | B | 1 | | SoCal Joint Regional | Irvine Unified School District | Orange |
| Larchmont Charter School | C | 2 | 2 | SoCal Joint Regional | Los Angeles Unified | Los Angeles |
| Lassalette | B | 1 | | SoCal Joint Regional | Hacienda La Puente | Los Angeles |
| Legacy Magnet Academy | B | 2 | | SoCal Joint Regional | Tustin Unified School District | Orange |
| Los Alisos Intermediate | B | 1 | | SoCal Joint Regional | Saddleback Valley Unified School District | Orange |
| Los Altos High School | C | 2 | | SoCal Joint Regional | Hacienda La Puente Unified | Los Angeles |
| Madrona Middle School | B | 1 | | SoCal Joint Regional | Torrance Unified School District | Los Angeles |
| Maranatha High School | C | 2 | 2 | SoCal Joint Regional | Independent | Los Angeles |
| Mark Keppel High School | C | 2 | | SoCal Joint Regional | Alhambra | Los Angeles |
| Mark Twain Middle School | B | 1 | 1 | SoCal Joint Regional | Los Angeles Unified School District | Los Angeles |
| Marlborough School | C | 1 | 1 | SoCal Joint Regional | Independent | Los Angeles |
| Martin Luther King High School | C | 2 | | SoCal Joint Regional | Riverside Unified School District | Riverside |
| McPherson Magnet School | B | 1 | | SoCal Joint Regional | Orange Unified School District | Orange |
| Medea Creek Middle School | B | 2 | | SoCal Joint Regional | Oak Park Unified School District | Ventura |
| Mesa Robles School | B | 3 | | SoCal Joint Regional | Hacienda La Puente USD | Los Angeles |
| Miller Middle School | B | 2 | | SoCal Joint Regional | Riverside Unified School District | Riverside |
| Mission Viejo High School | C | 1 | | SoCal Joint Regional | Saddleback Valley Unified School District | Orange |
| Montebello Intermediate | B | 1 | | SoCal Joint Regional | Montebello Unified School District | Los Angeles |
| Moore Middle School | B | 1 | | SoCal Joint Regional | Redlands Unified | San Bernardino |
| Newbury Park High School | C | 1 | | SoCal Joint Regional | Conejo Valley Unified School District | Ventura County |
| Newton Middle School | B | 1 | | SoCal Joint Regional | Hacienda La Puente Unified School District | Los Angeles |
| North Hollywood High School | C | 1 | | SoCal Joint Regional | Los Angeles Unified School District | Los Angeles County |
| Northwood High School | C | 2 | 2 | SoCal Joint Regional | Irvine Unified School District | Orange County |
| Oak Ave. | B | 1 | | SoCal Joint Regional | Temple City | LA |
| Oak Middle School | B | 2 | 2 | SoCal Joint Regional | Los Alamitos Unified School District | Orange County |
| Orange County School of the Arts | C | 1 | | SoCal Joint Regional | independent charter | Orange |
| Orange Grove Middle School | B | 1 | | SoCal Joint Regional | Hacienda La Puente Unified | Los Angeles |
| Pacific Academy Irvine | C | 1 | 1 | SoCal Joint Regional | Irvine | Orange |
| Pacifica Christian High School | C | 1 | | SoCal Joint Regional | Santa Monica | Los Angeles |
| Palmdale School District | B | 1 | | SoCal Joint Regional | Palmdale School School District | Los Angeles |
| Palos Verdes High School | C | 2 | | SoCal Joint Regional | Palos Verdes Peninsula Unified | Los Angeles |
| Palos Verdes Peninsula High School | C | 1 | | SoCal Joint Regional | Palos Verdes Peninsula School District | Los Angeles |
| Polytechnic Middle School | B | 1 | | SoCal Joint Regional | Pasadena Unified | Los Angeles |
| Polytechnic Upper School | C | 1 | 1 | SoCal Joint Regional | Pasadena Unified | Los Angeles |
| Rancho Pico Junior High | B | 1 | | SoCal Joint Regional | William S Hart District | Los Angeles |
| Rancho San Joaquin Middle School | B | 2 | | SoCal Joint Regional | IUSD | Orange County |
| Rio Norte Junior High | B | 1 | 1 | SoCal Joint Regional | William S. Hart | Los Angeles |
| Riverside STEM Academy | B | 2 | | SoCal Joint Regional | Riverside Unified School District | Riverside |
| Riverside STEM High School | C | 2 | | SoCal Joint Regional | Riverside Unified School District | Riverside |
| Robert C. Fisler K-8 | B | 1 | 1 | SoCal Joint Regional | Fullerton School District | Orange County |
| Rosemead High School | C | 1 | | SoCal Joint Regional | El Monte Union School District | Los Angeles County |
| Ross N. Robinson Middle School | B | 1 | | SoCal Joint Regional | Kingsport City | Sullivan County |
| Royal Oaks STEAM Academy | B | 1 | | SoCal Joint Regional | Duarte Unified School District | Los Angeles |
| Sage Oak Charter | C | 1 | | SoCal Joint Regional | Helendale | San Bernardino |
| Sage Oak Charter | B | 2 | | SoCal Joint Regional | Helendale | San Bernardino |
| San Dimas High School | C | 2 | | SoCal Joint Regional | Bonita Unified School District | Los Angeles |
| San Marino High School | C | 2 | | SoCal Joint Regional | San Marino Unified School District | Los Angeles |
| Santa Monica High School | C | 1 | | SoCal Joint Regional | Santa Monica-Malibu Unified School District | Los Angeles |
| Saugus High School | C | 1 | 1 | SoCal Joint Regional | William S Hart UHSD | Los Angeles |
| Sierra Vista Middle School | B | 1 | | SoCal Joint Regional | Hacienda La Puente Unified School District | Los Angeles |
| Sierra Vista Middle School | B | 4 | | SoCal Joint Regional | IUSD | Orange County |
| South High School | C | 1 | | SoCal Joint Regional | Torrance Unified School District | Los Angeles |
| South Lake Middle School | B | 2 | | SoCal Joint Regional | Irvine Unified School District | Orange County |
| South Pasadena High School | C | 1 | 1 | SoCal Joint Regional | South Pasadena Unified School District | Los Angeles |
| South Pointe Middle School | B | 1 | | SoCal Joint Regional | Walnut Valley Unified School District | Los Angeles |
| Sunny Hills High School | C | 1 | | SoCal Joint Regional | Fullerton Joint Union High School District | Orange County |
| Temecula Valley High School | C | 3 | | SoCal Joint Regional | Temecula Valley Unified School District | Riverside |
| Temple City High School | C | 1 | | SoCal Joint Regional | Temple City Unified School District | Los Angeles |
| Tesoro High School | C | 1 | | SoCal Joint Regional | Capistrano Unified | Orange |
| The Palmdale Aerospace Academy | C | 1 | | SoCal Joint Regional | The Palmdale Aerospace Academy | Los Angeles |
| The Palmdale Aerospace Academy | B | 1 | | SoCal Joint Regional | The Palmdale Aerospace Academy | Los Angeles |
| Troy High School (CA) | C | 2 | | SoCal Joint Regional | Fullerton Joint Union High School DIstrict | Orange |
| University High School | C | 2 | | SoCal Joint Regional | Irvine Unified School Distrcit | Orange County |
| Upland High School | C | 1 | | SoCal Joint Regional | Upland Unified School District | San Bernardino |
| Valencia High School (LA) | C | 1 | | SoCal Joint Regional | William S. Hart Union High School District | Los Angeles |
| Valencia High School (OC) | C | 2 | | SoCal Joint Regional | Placentia-Yorba Linda Unified School District | Orange |
| Valinda School of Academics | B | 1 | | SoCal Joint Regional | Hacinda La Puente Unified School District | Los Angeles |
| Van Avery Prep | B | 2 | 2 | SoCal Joint Regional | Private | Riverside |
| Van Nuys High School | C | 1 | | SoCal Joint Regional | Los Angeles Unified School District | Los Angeles |
| Venado Middle School | B | 2 | 2 | SoCal Joint Regional | Irvine Unified School District | United States |
| Viewpoint | C | 1 | 1 | SoCal Joint Regional | private | Los Angeles |
| Viewpoint School | B | 1 | 1 | SoCal Joint Regional | Private | LA |
| Villa Park High School | C | 1 | 1 | SoCal Joint Regional | Orange Unified School District | Orange |
| Vista Murrieta High School | C | 2 | | SoCal Joint Regional | Murrieta Unified School District | Riverside |
| Vista Verde Middle School | B | 2 | 2 | SoCal Joint Regional | Irvine Unified School District | Orange County |
| West High (Torrance) | C | 2 | | SoCal Joint Regional | Torrance Unified School District | Los Angeles |
| Western Center Academy | B | 1 | | SoCal Joint Regional | Hemet Unified | CA |
| Westridge School for Girls | C | 1 | 1 | SoCal Joint Regional | Independent School | Los Angeles |
| William Workman High School | C | 1 | | SoCal Joint Regional | Hacienda La Puente Unified School District | LA South |
| Woodbridge High School | C | 1 | | SoCal Joint Regional | Irvine Unified School District | Orange |