| | | | | | | |
| Amelia Earhart | B | 2 | 2 | | RUSD | Riverside | CA |
| Arnold O. Beckman High School | C | 2 | 2 | | Tustin Unified | Orange County | CA |
| California Academy of Mathematics and Science | C | 1 | 1 | SoCal Joint Regional | Long Beach Unified School District | Los Angeles | CA |
| Canyon High School | C | 2 | 2 | SoCal Joint Regional | Orange Unified | Orange | CA |
| Chaparral High School | C | 2 | | SoCal Joint Regional | Temecula Valley Unified School District | Riverside | CA |
| Chaparral Middle School | B | 2 | | SoCal Joint Regional | Walnut Valley Unified | Los Angeles | CA |
| Crean Lutheran High School | C | 3 | | SoCal Joint Regional | Private school | Orange County | CA |
| Dana Middle School | B | 4 | 4 | SoCal Joint Regional | Arcadia Unified School District | Los Angeles | CA |
| Davidson Academy | C | 1 | | Nevada Science Olympiad | Da | Washoe County | NV |
| Davidson Academy | B | 1 | | Nevada Science Olympiad | Davidson Academy | Washoe | NV |
| Del Norte High School | C | 3 | | SDSO | Poway Unified School District | San Diego | CA |
| Diamond Bar High School | C | 2 | 2 | SoCal Joint Regional | Walnut Valley Unified School District | Los Angeles County | CA |
| El Dorado High School | C | 2 | 2 | SoCal Joint Regional | Placentia-Yorba Linda Unified School District | Orange County | CA |
| El Rancho Charter | B | 2 | 2 | SoCal Joint Regional | Orange Unified | Orange | CA |
| Fairmont Private Schools - Anaheim Hills | B | 2 | 2 | SoCal Joint Regional | Private | Orange | CA |
| Gabrielino High School | C | 1 | 1 | SoCal Joint Regional | San Gabriel Unified School District | Los Angeles | CA |
| John A Rowland High School | C | 2 | | | Rowland Unified | Los Angeles | CA |
| John W. North High School | C | 1 | | SoCal Joint Regional | Riverside Unified School District | Riverside | CA |
| Kennedy Middle School | B | 6 | | Santa Clara County Regional Science Olympiad | Cupertino Union School District | Santa Clara | CA |
| Kraemer Middle School | B | 3 | | | Placentia Yorba Linda Unified | Placentia | CA |
| Margarita Middle School | B | 2 | | SoCal Joint Regional | Temecula Valley Unified | Riverside | CA |
| Martin Luther King High School | C | 3 | 3 | Inland Empire Regional Science Olympiad | Riverside Unified School District | Riverside | CA |
| McPherson Magnet School | B | 2 | 2 | SoCal Joint Regional | Orange Unified School District | Orange | CA |
| Mesa Robles | B | 1 | 1 | Los Angeles | Hacienda La Puente | Los Angeles | CA |
| Mira Mesa High School | C | 1 | | SDSO | San Diego Unified School District | San Diego | CA |
| Northwood High School | C | 1 | 1 | Orange County Regionals | Irvine Unified School District | Orange County | CA |
| Oak Valley Middle School | B | 3 | 3 | SDSO | Poway Unified School District | CA | CA |
| Pinewood School | B | 1 | | Santa Clara County Regional Science Olympiad | Los Altos Hills | Santa Clara County | CA |
| Pioneer High School | C | 1 | 1 | | Whittier Union High School District | Los Angeles County | CA |
| Portola High School | C | 2 | 2 | SoCal Joint Regional | Irvine Unified School District | Orange | CA |
| Redwood Middle School | B | 1 | 1 | Santa Clara County Regional Science Olympiad | Saratoga Union SD | Santa Clara | CA |
| Riverside STEM Academy | B | 2 | | SoCal Joint Regional | Riverside Unified School District | Riverside | CA |
| Riverside STEM High School | C | 3 | | SoCal Joint Regional | Riverside Unified School District | Riverside | CA |
| Scripps Ranch High School | C | 1 | 1 | SDSO | San Diego Unified School District | CA | CA |
| Sierra Vista Middle School | B | 3 | | Orange County | IUSD | Orange County | CA |
| Turtle Rock Elementary School | B | 2 | | Orange County | Irvine Unified School District | Orange | CA |
| University High School | C | 2 | | SoCal Joint Regional | Irvine Unified School Distrcit | Orange County | CA |
| University Park Elementary School | B | 1 | | | Irvine school district | Orange County | CA |
| Vail Ranch Middle School | B | 1 | | SoCal Joint Regional | Temecula Valley USD | Riverside | CA |
| Valencia High School (OC) | C | 2 | | SoCal Joint Regional | Placentia-Yorba Linda Unified School District | Orange | CA |
| Van Avery Prep | B | 3 | 3 | SoCal Joint Regional | Private | Riverside | CA |
| Walnut High School | C | 2 | 2 | SoCal Joint Regional | Walnut Valley Unified School District | Los Angeles | CA |
| Western Center Academy - Blue | B | 3 | 3 | | Hemet Unified | California | CA |
| Westpark Elementary School | B | 3 | | Orange County | Irvine Unified School District | Orange Country | CA |
| Whitney High school | C | 2 | 2 | Southern california Regionals | ABC Unified School District | Los Angeles County | CA |
| Whitney Middle school | B | 1 | 1 | Southern california Regionals | ABC Unified School District | Los Angeles County | CA |