The mascot chosen back in the early 1970s was the "rebel", to represent the rebellious nature of the then new teaching concept and the upcoming Bicentennial.

Approved schools offer a Cambridge Advanced International Certificate of Education study program for academic high achievers allowing them to take the Cambridge AICE exams, the equivalent of the A-level exams in Britain / United Kingdom.

The school building has the classrooms, lunchroom / cafeteria, theater / auditorium, library, and administrative / departmental offices.

[11] The proposed bond issue originally included a plan to tear down the school's swimming pool,[12] which is shared the WAVE Aquatics water polo program and Inglemoor, Woodinville, Bothell, North Creek, and Lake Washington high schools.

Through a $1.8 million grant from the government of King County's Parks Department,[13] the swimming pool was incorporated into an updated bond issue.

[16] Three years later, in 2020, Juanita High alumni and additional current students resurrected the controversy and renewed petition, and the L.W.S.D.

[23] His walk from his Bothell home was more than a mile long and the road he was crossing has a speed limit of 40 mph.

King County performed a study after the death of Lin that concluded the speed limit was appropriate, which is reduced to 20 mph when children are present.

[9][26] In 2014, Juanita won its fourth Washington Achievement Award Special Recognition for its extended graduation rate.

[32] In 2021, Juanita student Caroline Yim was honored by the International Thespian Society with a $35,000 Grace Kelly Scholarship for scenic design in the play The Hound of the Baskervilles.

[34] Mohan and another Juanita student, Pragnya Gudipati, won the 2021 T-Mobile Changemaker Challenge, a grant for $5,000, to develop a diagnostic tool to check for Tuberculosis (TB) with an at-home urinalysis stick called "Tuberculosticks.

[36] The course was developed in a science education partnership with the Fred Hutchinson Cancer Center (FHCC) that provides students with workshops and summer internships at the HutchLab, Amgen, ZymoGenetics, Seattle Biomedical Research Institute, and the University of Washington's (UW) department of Genome Sciences and the Molecular and Cellular Biology graduate program.

[37][38][39] Chowning worked with biology teacher Mary Glowdowski, who taught the course at Juanita, to develop the curriculum.

[42] In 2003, Glodowski won the Amgen Award for Science Teaching Excellence,[43] and in 2007, Glodowski won the Presidential Award for Excellence in Mathematics and Science Teaching, primarily for her work on Juanita's biotechnology program.

[38][45][41] Students in the class also studied the migratory patterns of coyotes, by sequencing DNA, and learned to genetically alter bacteria, which is the same technique used in the production of insulin.

[46][47][48][49] In 2006, Juanita won the first ever Judges' Award of Excellence cup at the Biotechnology Expo, hosted by the Northwest Association for Biomedical Research.

[54] In 2015, the Juanita High School softball team won the Kingo Athletic Conference Washington state championship.

[67] Senior students intervened and stopped the assault from progressing and immediately reported it to the assistant coach, Lele Te’o.

[68] The incident, a hazing ritual called "jubie", was classified as a culture problem because the perpetrators had been victimized themselves.