Idaho Science & Engineering Fairs (IDSEF)

Idaho's science and engineering fair program for students in grades 9 to 12, run by the Idaho STEM Action Center and affiliated with the Regeneron International Science and Engineering Fair. Students do original research, alone or in teams of up to 3, and present it to judges at the Northern, Western or Eastern Idaho regional fair. Regional winners earn an all-expense trip to the international fair.

Offered by Idaho STEM Action Center. Competition for high school students in Idaho, USA. Format: In-person. Cost: Free. Grades 9–12. Deadline: 2026-12-18.

Fields: STEM, Research, Engineering

Key facts

Who can apply: High school students in grades 9 to 12. It takes place in person in Idaho.
Cost: Free to take part.
Dates: The deadline is December 18, 2026.

Info checked November 2026.

Questions about Idaho Science & Engineering Fairs (IDSEF)

When is the Idaho Science & Engineering Fairs (IDSEF) deadline?

The deadline is December 18, 2026.

Is Idaho Science & Engineering Fairs (IDSEF) free?

Yes. Idaho Science & Engineering Fairs (IDSEF) is free to take part in.

Who can apply to Idaho Science & Engineering Fairs (IDSEF)?

High school students in grades 9 to 12. It takes place in person in Idaho. Age, residency and citizenship rules are on the official page.

Official program page

More academic competitions for high school students