The school also has a notable portion of minority students from Boston (particularly Dorchester, Mattapan, and Roxbury) enrolled as part of the METCO program.

For students' freshman and sophomore years, they are required to take world cultures and US history respectively, neither of which are levelled classes.

Concord-Carlisle also hosts local chapters of Key Club International, Model United Nations, Amnesty International, Interact Club, JSA, The Innocence Project, The Sunrise Movement, Academic Bowl, Robotics Team, Science Olympiad, and a Math Team.

[5][6] CCHS supports all of the 33 available sports teams organized by the Massachusetts Interscholastic Athletic Association (MIAA).

One of the largest sports team at this school, there are members every year who make it to the Sectionals and State meets.

[22] The CCHS girls soccer team has many accomplishments including undefeated seasons and many division titles.

Concord Carlisle High School moved to a new, eco-friendly building in mid-April 2015, after almost 18 years of planning.

The project took approximately four years to complete and is located behind the previous CCHS building, with a reversed orientation.

The new school has a 600-seat auditorium, 2 attached gyms, and a 'media wall' consisting of 9 flat-screen televisions in the cafeteria.

[25] On September 6, 2022, voters elected to raise taxes by an estimated $660,822 in order to redesign and rebuild the school's access road.