| Alameda County Science & Engineering Fair |
24 |
17 |
| Calaveras County Science Fair |
2 |
6 |
| Central California Regional Science, Math, & Engineering Fair |
65 |
57 |
| Chico Science Fair |
4 |
6 |
| Contra Costa County Science & Engineering Fair |
21 |
14 |
| Greater San Diego Science & Engineering Fair |
100 |
97 |
| Humboldt County Science Fair |
18 |
18 |
| Kern County Science Fair |
54 |
43 |
| Lassen County Science Fair |
5 |
6 |
| Los Angeles County Science Fair |
108 |
104 |
| Mendocino County Science Fair |
17 |
14 |
| Monterey County Science Fair |
23 |
22 |
| Nevada County Science Fair |
6 |
6 |
| Orange County Science & Engineering Fair |
26 |
89 |
| Placer County STEM Expo |
7 |
6 |
| RIMS Inland Science & Engineering Fair |
65 |
64 |
| Sacramento Regional Science & Engineering Fair |
11 |
14 |
| San Benito County Science Fair |
6 |
6 |
| San Francisco Bay Area Science Fair |
21 |
23 |
| San Joaquin County Science Fair |
5 |
7 |
| San Mateo Science, Math, & Technology Fair |
45 |
36 |
| Santa Barbara Science Fair |
25 |
24 |
| Santa Cruz County Science & Engineering Fair |
33 |
40 |
| Solano County Science Fair |
1 |
6 |
| Synopsys Silicon Valley Science and Technology Championship |
120 |
97 |
| Synopsys Sonoma County Science Fair |
9 |
6 |
| Tulare County Science Fair |
7 |
6 |
| Tuolumne County Science Fair |
3 |
6 |
| Ventura County Science Fair |
44 |
42 |