[4] In 1964, growing disagreement between the western (Lake Zurich) and eastern (current Stevenson) sections of the district emerged regarding the school's direction.

By the late 1990s, intense student competition led to the formation of a task force to find solutions to issues like grading system manipulation.

In 2002, a referendum seeking an increase in the education tax rate received nearly 70% support from the community, stabilizing the district's finances.

[8] In April 2008, Education Week featured Stevenson High School in an article about its successful implementation of professional learning community practices.

Other renovations that year included more fine arts areas around the band, choir, and orchestra rooms in the west building.

[16] The school serves students in the area's District 125 coming from Lincolnshire, Long Grove, Prairie View, portions of Buffalo Grove, Mundelein, Kildeer, Hawthorn Woods and smaller portions of Vernon Hills, Lake Zurich, Riverwoods, Bannockburn, and Mettawa.

[21][22] The Stevenson public information officer released a statement November 20 stating the administration did not think anonymous sources discussing alleged illegal activity was fit for print.

[24] The Society of Professional Journalists' Freedom of Information chairman called the censorship "immoral, un-American, irresponsible and not fit for education.

"[25] Following the censorship fiasco, 11 of 14 Statesman staffers — and all the paper's top editors — resigned from their positions at the start of the spring 2010 semester.

The American Civil Liberties Union of Illinois described the incident as a "fishing expedition", while school officials stated they were "perfectly within our rights".

In one instance a student was suspended for five days and barred from participating in extracurricular activities because he refused to provide the password to his cellphone.

[29] In January of 2020, a black student at Stevenson was allegedly targeted and disrespected by dean Nick Valenziano on a recorded video.

The following teams have won their respective IHSA sponsored state championship tournament or meets:[34] Stevenson High School is one of the only high schools in the country to receive the United States Department of Education's "Excellence in Education" Blue Ribbon Award five times.

[44] In 2016, Niche gave A+ ratings in the following areas: academics, teachers, educational outcomes, health and safety, resources and facilities, sports and fitness, co-curricular activities, food service, and administration and policies.