Affiliated County/Regional Fairs

You can also locate any fair listed by county covered by the affiliated fair.

County and Regional Fairs (approximately geographically)

• Humboldt County Science Fair
• Trinity County Science Fair
• Siskiyou County Science Fair
• Lassen County Science Fair
• Plumas County Science Fair
• Mendocino County Science Fair
• Lake County Science Fair
• Glenn County Science Fair
• Butte County Science Fair
• Nevada County Science Fair
• Sonoma County Science Fair
• Contra Costa County Science & Engineering Fair
• San Francisco Bay Area Science Fair
• Tri-Valley Science and Engineering Fair
• Placer County Science Fair
• Sacramento Regional Science & Engineering Fair
• Calaveras County Science Fair
• San Mateo County Science, Math & Technology Fair
• Santa Cruz County Science Fair
• Synopsys Silicon Valley Science and Technology Championship
• San Joaquin County Science Fair
• Stanislaus County Science Fair
• Tuolumne County Science Fair
• Monterey County Science Fair
• San Benito County Science Fair
• Central California Regional Science, Mathematics, and Engineering Fair
• Tulare County Science Fair
• San Luis Obispo County Regional Science Fair
• Santa Barbara Science Fair
• Kern County Science Fair
• Ventura County Science Fair
• Los Angeles County Science Fair
• Inland Counties Science Fair
• Orange County Science Fair
• Greater San Diego Science & Engineering Fair

Please send all corrections/additions/comments to CalifSF@usc.edu.