State/Lake is an 'L' station serving the CTA's Brown, Green, Orange, Pink, and Purple Lines on The Loop. It is located in the Chicago Loop at 200 North State Street. Like all Loop stations, it has two side platforms. The CTA offers farecard transfers between this station and the Lake subway station on the Red Line. Unlike most stations, there is no in-station transfer between directions.

The Chicago Transit Authority (CTA) is the operator of mass transit in Chicago, Illinois, United States, and some of its suburbs, including the trains of the Chicago "L" and CTA bus service. In 2023, the system had a ridership of 279,146,200, or about 908,400 per weekday as of the fourth quarter of 2023.