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)
Grades K – 12 Fair 2025 (Pierce, Thurston, Mason, Lewis, Kitsap, Jefferson, Clallam and Grays Harbor Counties)
Due to DRSEF 2025 unavailability, all DRSEF students will directly register with WSSEF to attend the Washington State Science & Engineering Fair. You also have the option to attend a neighboring regional fair. Contact registration@wssef.org for more information.
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