It is an elevated station with two island platforms, serving four tracks, located in the Lincoln Park neighborhood in Chicago, Illinois.

In 1949, an additional set of exit stairs was added at Fullerton as well as a 15 feet (4.6 m) tall supervisor's booth on the platform.

In 1989, Evanston Express trains began stopping at Fullerton due to increased ridership.

Fullerton station underwent reconstruction as part of the Brown Line Capacity Expansion Project.

The new station has wider platforms and elevators to ensure that it meets ADA accessibility requirements.

[9][10] As part of the Red, Brown and Purple Lines, Fullerton is used by passengers travelling between Lincoln Park and the Loop, Ravenswood and neighborhoods on the North Side.

The fare controls at Fullerton are located in a new station house on the south side of Fullerton Avenue; the original station house was closed for renovation and was moved across the street and converted to an auxiliary farecard-only entrance.

Additional exit stairs lead from the platforms to the north side of Fullerton Avenue.