Addison Trail has roughly 2,026 students in the grades 9-12 and 122 full-time teachers staffed in the school year 2015–2016.

[12] The population at Addison Trail, as of 2019, is 48.9% Hispanic, 42.1% White, 4.2% Asian, 3.5% African American, and .9% being two or more races.

[13] In 2008, construction began on new renovations, which included a new 3-story classroom addition, student commons area and field house.

The school sponsors interscholastic teams for boys and girls in basketball, cross country, golf, gymnastics, soccer, swimming and diving, tennis, track & field and volleyball.

[19] The following teams finished in the top four of their respective IHSA sponsored state championship tournament or meet.