Greater Peoria Mass Transit District was formed in 1970 to take over operations of the struggling privately run bus service.

On June 8, 2014, CityLink began offering Sunday service for the first time, which helped lead to fiscal year 2015 having the highest ever ridership for the system, at 3,420,705 riders.

[8] CityLink operates 18 fixed routes in Peoria County and Tazewell County, Illinois, including one "intercity" route between the main network and the Pekin, Illinois network.

[12] In addition to CityLink, Burlington Trailways intercity buses also serve the facility.

[13] The ridership statistics shown here are of fixed route services only and do not include demand response.