Arts Choral Music Mill Valley's choral program offers a two mixed choruses, two girls groups, and a mixed ensemble. The Jag Chorale, Mill Valley's advanced mixed chorus, has sung with the Kansas City Chorale, and has received straight one ratings in Male, Female, and Mixed group performance at contest in 2013 and 2014.
Band While no orchestral program is offered, Mill Valley has three standard bands, the Blue, Silver, and Symphonic Bands, as well as a Jazz Band. Both Blue and Silver bands have received high marks at contests in Kansas and Missouri. During the 2015–2016 school year, Mill Valley created the Symphonic Band, an audition-only ensemble for upper-level musicians. Jazz Band received high marks at the Kansas City Jazz Summit festival in 2017.
Theatre The Mill Valley Theatre Department puts on two productions a year (usually these consist of one fall musical and one spring play), and the department also offers many stage related classes such as Drama I, Drama II, and Stagecraft. Their 2018 student-led production of
She Loves Me was the first Thespian musical produced at the school.
Academics Debate The Debate team has competed since the school's inception, sending teams to State level competition most years.
Scholars Bowl The Scholars Bowl Team has competed at the state level frequently, winning state twice in 2015 and 2009, alongside a 2nd place in 2025 and multiple other 3rd place finishes. It also participated in the
U.S. Department of Energy National Science Bowl in
Washington, D.C. in 2007 and 2009.
Robotics The Robotics team was founded in 2006, participating in the
FIRST Robotics Competition winning the Midwest Regional in its rookie season. The team has the number 1810, and was named Jaguar Robotics. In 2023, due to the high quantity of students joining from DeSoto High School, 1810 changed its name from Jaguar Robotics to CATATRONICS. Alongside that change, and due to a significant increase in members after moving to the Cedar Trails Exploration Center, a second team was created with the number 9316 named the CUBATRONICS. Team 1810 consists of Juniors and Seniors, and 9316 consists of Freshmen and Sophomores. The team has attended the FIRST Championship 4 times, in 2006, 2013, 2017, and 2018. In 2024, the team began hosting the Heartland Regional at Mill Valley High School.
Science Olympiad The Science Olympiad team, also founded during the 2005–06 school year, competed at the state level in 2007, 2008, 2009, 2010, 2011, 2012, 2013 and 2014.
Athletics The Jaguars are classified as a 6A school, the largest classification in Kansas according to the
Kansas State High School Activities Association, though they play football at the 5A level. Mill Valley offers the following sports: baseball, basketball, bowling, football, golf, soccer, tennis, cheerleading, cross country, dance team, softball, track & field, volleyball, swimming, and wrestling. The Mill Valley football team won the school's first state championship in 2015, defeating
Bishop Carrol High School 35–14 at Pittsburg on November 28, 2015. They finished their season 12–1 and were ranked #1 in the state of Kansas for all classes, and #74 in the nation, according to MaxPreps. As of 2024, the football team has won eight titles. The boys' basketball and wrestling programs have won their own titles, while the girls' golf, cross country teams have added the first girls' state titles in school history. In 2020, the Silver Stars Dance Team won their first state title in the inaugural KSHSAA Dance State competition. In Spring 2021, the Silver Stars won the schools first ever National title by winning the Medium Varsity Jazz division with the National Dance Alliance High School Championship. In the fall of 2023, Mill Valley also won their first state championship in cheer. In the fall of 2023, the volleyball program added their first state title and repeated in 2024.
State championships ==Publications==