Idaho

Past State Champions
Historically, St. Joseph's Catholic School has dominated Division B and Bishop Kelly High School has controlled Division C. However, in 2011 and 2012, Treasure Valley Math and Science Center won in B division, and in 2016, Capital High School dethroned Bishop Kelly. Treasure Valley Homeschool's Division B won two consecutive years in 2017 and 2018, and their Division C team has become a force, winning three years in a row from 2017 to 2019.

Competitions
The Idaho Science Olympiad culminates at the state competition in Boise, Idaho. The tournament, located at Boise State University, plays host to both B and C divisions, including blended B and C events. The top school in B and C divisions goes on to compete for the state of Idaho at the national tournament.

2020 Mini-Invitationals
The mini-invitationals are smaller invitationals in Idaho that typically each hold 4 or 5 events per division. They started in the 2018-2019 season. The Idaho board of directors will release more details about 2020 soon.
 * St. Joseph's Catholic School, November 9th, 2019 - Experimental Design B/C, Write It Do It B/C, Dynamic Planet B/C, Road Scholar B, GeoLogic Mapping C
 * Fairmont Junior High School, December 14th, 2019 - Machines B/C, Water Quality B/C, Disease Detectives B/C, Reach for the Stars B, Astronomy C

Regional Competitions

 * Eastern Idaho Regional at Idaho State University in Pocatello, Idaho: March 30th, 2019

State Competition

 * 2020 location: Boise State University in Boise, Idaho: April 18th, 2020.

Division B

 * [[Media:2016 ID B Results.PNG|2016]]
 * [[Media:2017 ID B Results.pdf|2017]]
 * [[Media:2018 ID B Results.pdf|2018]]
 * [[Media:2019 ID B Results.pdf|2019]]

Division C

 * [[Media:2016 ID C Results.PNG|2016]]
 * [[Media:2017 ID C Results.pdf|2017]]
 * [[Media:2018 ID C Results.pdf|2018]]
 * [[Media:2019 ID C Results.pdf|2019]]

Teams
Idaho plays host to a decent number of teams at the state competition every April.

Division B

 * Alameda Middle School
 * Anser Public Charter School
 * Fairmont Junior High School
 * Franklin Middle School
 * Hawthorne Middle School
 * Holy Spirit Catholic School
 * Idaho Arts Charter School
 * Kuna Middle School
 * Lone Star Middle School
 * Middleton Middle School
 * North Junior High School
 * Sacred Heart Catholic School
 * Saint Ignatius Catholic School
 * Saint Joseph's Catholic School
 * Saint Mark's Catholic School
 * Saint Mary's Catholic School
 * Saint Paul's Catholic School
 * Treasure Valley Math and Science Center
 * Treasure Valley Homeschool
 * Vallivue Middle School
 * White Pine Charter School

Division C

 * Bishop Kelly High School
 * Capital High School
 * Idaho Arts Charter School
 * Idaho Fine Arts Charter School
 * Rigby High School
 * Treasure Valley Math and Science Center
 * Treasure Valley Homeschool
 * Twin Falls High School
 * Weiser High School