HackUCI 2018 Irvine, CA, USA Create. Connect. Inspire. $3,625 in prizes Feb 1 – 4, 2018 238 participants
HSHacks III Fremont, CA, USA 1000-student, 24-hour high school hackathon in the Bay Area $36,691 in prizes Mar 25 – 26, 2017 275 participants
Los Altos Hacks II Redwood City, CA, USA Los Altos Hacks II is here! $1,750 in prizes Feb 4 – 5, 2017 187 participants
GunnHacks 3.0 Palo Alto, CA, USA Make, Build, Create & Learn. It’s GunnHacks 3.0, Gunn’s 24-hour high school hackathon. Non-monetary prizes Nov 11 – 12, 2016 75 participants
Recurrent Neural Hacks! San Francisco, CA, USA First ML Hackathon brought to you by XIX.ai team and NVIDIA Deep Learning Institute $1,900 in prizes Jul 16 – 17, 2016 78 participants
Industrial IoT Hackathon San Francisco, CA, USA FREE 2-day Hackathon $5,000 in prizes Jun 28 – Jul 11, 2016 12 participants
Opportunity Hack San Jose 2016 San Jose, CA, USA Connect.. Build and Empower organizations to change lives across the world $6,000 in prizes Jul 8 – 10, 2016 541 participants
CU HACKS 2 Cupertino, CA, USA CU HACKS 2 is the Cupertino Library’s FREE, overnight hack-a-thon event for teens where the next generation of programmers join together to bring their coolest ideas to life. $6,000 in prizes Jun 11 – 12, 2016 65 participants
Hacktech Pasadena, CA, USA The West Coast's Premier Interdisciplinary Hackathon! $32,038 in prizes Feb 26 – 28, 2016 271 participants
SV Hacks! - Ideas Come To Life Come as you are, build what you like $8,100 in prizes Feb 20 – 21, 2016 462 participants
HackingEDU San Mateo, CA, USA Invent the Future $100,800 in prizes Oct 22 – 25, 2015 615 participants
Teen Hackathon California, USA The First Educational High School Hackathon Non-monetary prizes Mar 21 – 22, 2015 59 participants