List of Chicago Transit Authority bus routes



This is a list of bus routes operated by the Chicago Transit Authority. In, the CTA bus system had a ridership of , or about per weekday as of.

Routes running 24 hours a day, seven days a week are:
 * The N4 (between 63rd/Cottage Grove and Washington/State only),
 * N9 (between 95th/Dan Ryan and North/Clark only),
 * N20 (between Washington/State and Austin),
 * N22 (between Howard and Harrison),
 * N34 (between 95th/Dan Ryan and 131st/Ellis),
 * N49 (between 79th and Berwyn),
 * N53 (between Harrison and Irving Park only),
 * N55 (between Museum of Science and Industry and 55th/St. Louis only),
 * N60 (between Washington/State and 54th/Cermak ),
 * N62 (between Washington/State and Midway),
 * N63 (between Midway and 63rd/Stony Island),
 * N66 (between Chicago/Pulaski and Washington/State),
 * N77 (between Harlem and Halsted only),
 * N79 (between Western and Lakefront only),
 * N81 (between Jefferson Park and Wilson/Marine Drive),
 * N87 (between Western and 87th only).