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 28 & 29, 2025
Grades 1 – 8 is March 28 and Grades 9 – 12 is March 29, 2025 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.
Central Sound Regional Science & Engineering Fair
Grades 9 – 12, In-person Fair 2025 ~ (King & Snohomish Counties) Fair date is March 8, 2025
Discovery Regional Science & Engineering Fair (Formerly South Sound Regional Science & Engineering Fair)
(Pierce, Thurston, Mason, Lewis, Kitsap, Jefferson, Clallam and Grays Harbor Counties)
Grades K – 5, Fair 2025 ~ no presentation; judged via submissions by TBD
Grades 6 – 8, Virtual Fair ~ presentations are TBD
Grades 9 – 12, Virtual Fair ~ presentations are TBD
Mid-Columbia Regional Science & Engineering Fair
Grades 6 – 12, Fair 2025 (Garfield, Columbia, Klickitat, Asotin, Adams, Kittitas, Douglas, Okanogan, Walla Walla, Chelan, Franklin, Grant, Benton & Yakima Counties) Fair date is March 13, 2025
Southwest Washington Regional Science & Engineering Fair
Grades 9 – 12, Virtual Fair 2025 (Wahkiakum, Skamania, Pacific, Cowlitz & Clark Counties) Virtual Fair is March 1, 2025
Eastern Washington Regional Science & Engineering Fair
Grades 6 – 12, Fair 2025 (Stevens, Lincoln, Spokane, Pend Oreille, Ferry & Whitman Counties) In-person Fair date is March 13, 2025
Northwest Regional Science & Engineering Fair (affiliation pending)
Grades 6 – 12, Fair 2025 (Whatcom, Skagit, Island and San Juan Counties) Fair date is virtual