Washington

Washington State Science Olympiad has grown more competitive over the years, with a number of new schools and teams each season. It has grown from having only three regional tournaments to having five regional tournaments. The three regions of Washington are the Northwest Region (Seattle Central College and Highline College), the Eastern Region (Spokane Falls Community College and Yakima Valley Community College), and the Southwest Region (Lower Columbia College). In recent years, the state tournament has been held at either Clark College or Eastern Washington University. However, the 2015 state tournament was held at Highline Community College on April 18, 2015, the first time in many years the state tournament had been held in the Northwest Region.

Past State Champions
This is a record of the past state champions and runners up, and their respective places at the national competition, if applicable. Scores at the state competition may be shown in parentheses.

Invitational Competitions

 * Southwest Region Invitational - Clark College (Division A)
 * Southwest Region Invitational - Camas High School (Division B)
 * Southwest Region Invitational - Camas High School (Division C)
 * Northwest Region Invitational - Canyon Park (Division B)
 * Northwest Region Invitational - Interlake High School (Division C)
 * Northwest Region Invitational - Aviation High School (Division C)

Regional Competitions

 * Eastern Region (Division B/C) - Spokane Falls Community College
 * Northwest Region (Division B/C) - Seattle Central College
 * Northwest Region (Division B/C) - Highline College
 * Southwest Region (Division B/C) - Lower Columbia College
 * South Central Region (Division B) - Yakima Valley Community College

State Competition

 * Eastern Washington University (2016)
 * Highline Community College (2015)
 * Eastern Washington University (2014)
 * Clark College (2013)
 * Eastern Washington University (2012)

Eastern Region

 * Chelan Middle School
 * Cheney Middle School
 * Colton School
 * Frontier Middle School
 * Greenacres Middle School
 * Jenkins Middle School
 * Reardan-Edwall Middle School
 * St. Joseph's School

Northwest Region

 * Beaver Lake Middle School
 * Canyon Park Junior High School
 * Chimacum Middle School
 * Kenmore Junior High School
 * La Conner Middle School
 * Lakeside School
 * Mount Baker Middle School
 * Northshore Junior High School
 * Pacific Cascade Middle School
 * Port Susan Middle School
 * Seattle Academy of Arts & Science
 * Stanwood Middle School
 * The Bear Creek School
 * Timbercrest Junior High School

Southwest Region

 * Evergreen Christian School
 * ExCEL Homeschoolers
 * Hockinson Middle School
 * Huntington Middle School
 * Jason Lee Middle School
 * Liberty Middle School
 * Maple Grove Middle School
 * Skyridge Middle School
 * Toledo Middle School
 * Tukes Valley Middle School
 * Washington Middle School

Northwest Region

 * Aviation High School
 * Bellevue High School
 * Bellingham High School
 * Bothell High School
 * Chimacum High School
 * Coupeville High School
 * Curtis Senior High School
 * Eastlake High School
 * Inglemoor High School
 * Interlake High School
 * Lakeside School
 * Orting High School
 * Redmond High School
 * Sehome High School
 * Shorewood High School
 * Skyline High School
 * Stanwood High School
 * The Bush School
 * Thomas Jefferson High School
 * Woodinville High School

Southwest Region

 * Camas High School
 * Centralia High School
 * Columbia River High School
 * Evergreen High School
 * ExCEL Homeschoolers
 * Heritage High School
 * Mark Morris High School
 * Mountain View High School
 * Prairie High School
 * RA Long High School
 * Union High School
 * Washougal High School

Eastern Region

 * Central Valley High School
 * Chelan High School
 * Clarkston High School
 * Colton High School
 * Colville High School
 * Delta High School
 * Jenkins High School
 * Kamiakin High School
 * Kennewick High School
 * Mary Walker High School
 * Medical Lake High School
 * Moses Lake High School
 * Reardan-Edwall High School
 * Shadle Park High School
 * Southridge High School