Los Altos Hacks X Sunnyvale, CA, USA The world's largest high school hackathon. Non-monetary prizes Apr 11 – 12, 2026 279 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 122 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
PoweringSTEMHacks Online Challenge yourself through innovation, ending off the year strong with poweringSTEMhacks! $50,225 in prizes Winners announced 345 participants