Calaveras County Science Fair 1 6 Central California Regional Science, Math, & Engineering Fair 20 57 Greater San Diego Science & Engineering Fair 7 97 Humboldt County Science Fair 1 18 Kern County Science Fair 4 43 Mendocino County Science Fair 5 14 Monterey County Science Fair 8 22 Placer County STEM Expo 3 6 Sacramento Regional Science & Engineering Fair 2 14 San Joaquin County Science Fair 2 7 San Mateo Science, Math, & Technology Fair 15 36 Santa Barbara Science Fair 11 24 Santa Cruz County Science & Engineering Fair 1 40 Synopsys Sonoma County Science Fair 2 6 Tulare County Science Fair 1 6