Milpitas Hacks 3 Milpitas, CA, USA Milpitas High School's 3rd annual hackathon, centered around doing good for the community. $4,800 in prizes Jun 13, 2026 223 participants
Blu's Hacks 2026 San Jose, CA, USA Branham High's seventh annual hackathon: By students, for students Non-monetary prizes Mar 29, 2026 51 participants
VikingHacks 2026 Fremont, CA, USA Viking Hacks is Irvington High School's very own annual hackathon, bringing students from around the bay to build innovative projects and present their work to the community. Non-monetary prizes Mar 28, 2026 120 participants
Sierra Hacks Manteca, CA, USA A 12-hour coding marathon where innovation meets collaboration! $21,930 in prizes Nov 15, 2025 81 participants
MountainHacks 2025 Mountain House, CA, USA Hack the Heights - A 12-hour hackathon for high-school students of all experience levels, taking place on November 8th at MHHS! $12,460 in prizes Nov 8, 2025 188 participants
MakerHacks II San Francisco, CA, USA Design, Create, and Iterate in the largest High School Hardware Hackathon. Non-monetary prizes Oct 18 – 19, 2025 68 participants
CogniHacks (In Person Only Event) - Full Pleasanton, CA, USA Bringing Brain Computer Interface (BCI) Applications from clinical settings to commercial applications with AI. Must sign up at cognihacks.com/join to be a confirmed participant! $2,092 in prizes Aug 30, 2025 159 participants
Hack4Hope Make your Mark in the Fight Against Cancer with the American Cancer Society Cancer Action Network! $2,075 in prizes Aug 9, 2025 110 participants