WSSEF ~ Regional Science & Engineering Fairs

                                                                                     There is only one statewide fair allowed in Washington                                                                                             by Regeneron International Science & Engineering Fair (ISEF) rules.

Washington State Science and Engineering Fair (WSSEF)

WSSEF Includes All Students Grades 1 – 12 Statewide

March 27 & 28, 2026

Grades 1 – 8 is March 27 and Grades 9 – 12 is March 28, 2026     Work on your projects NOW!

Join in the fun at the in-person Fair held in Bremerton, Kitsap County

Regional science & engineering fairs in Washington are also ISEF affiliated.

If you live in a county covered by a Regional Fair for your grade level, then you must register with the Regional Fair before entering WSSEF.
If you live in a county not covered by a Regional Fair, or are a DRSEF student, you can register directly to the WSSEF.
Central Sound Regional Science & Engineering Fair

Grades 9 – 12, In-person Fair 2026 ~ (King & Snohomish Counties) Fair date is March 7, 2026

Discovery Regional Science & Engineering Fair (Formerly South Sound Regional Science & Engineering Fair)

Grades K – 12 Fair 2026 (Pierce, Thurston, Mason, Lewis, Kitsap, Jefferson, Clallam and Grays Harbor Counties)

Due to DRSEF 2026 unavailability, all DRSEF students will directly register with WSSEF to attend the in-person Washington State Science & Engineering Fair.  You also have the option to attend a neighboring in-person or virtual regional fair.  Contact registration@wssef.org for more information.

Mid-Columbia Regional Science & Engineering Fair

Grades 6 – 12, In-person Fair 2026  (Garfield, Columbia, Klickitat, Asotin, Adams, Kittitas, Douglas, Okanogan, Walla Walla, Chelan, Franklin, Grant, Benton & Yakima Counties) Fair date is March 19, 2026

Southwest Washington Regional Science & Engineering Fair 

Grades 9 – 12, Virtual Fair 2026 (Wahkiakum, Skamania, Pacific, Cowlitz & Clark Counties)  Virtual Fair is March 7, 2026

Eastern Washington Regional Science & Engineering Fair    

Grades 6 – 12, In-person Fair 2026 (Stevens, Lincoln, Spokane, Pend Oreille, Ferry & Whitman Counties)   In-person Fair date is March TBD, 2026

Northwest Regional Science & Engineering Fair (affiliation pending)

Grades 6 – 12, Fair 2025 (Whatcom, Skagit, Island and San Juan Counties) Fair date is virtual

A schedule for BPA Science Bowl and other 2026 science competitions can be viewed HERE.

The daily schedule for 2026 WSSEF can be viewed HERE upon completion.

List of dates for future WSSEF fairs HERE.