People learning about our history at Daley Plaza

Facts at a glance

Updated January 2024

Service overview

The Chicago Transit Authority (CTA) operates one of the nation’s largest public transportation systems. On an average weekday, 765,566 rides are taken on CTA. The CTA is a regional transit system that serves 35 suburbs, in addition to the City of Chicago, and provides 81 percent of the public transit trips in the six-county Chicago metropolitan area either with direct service or connecting service to Metra and Pace.

CTA has 1,868 buses that operate 127 routes and 1,514 route miles. Buses make about 15,943 trips a day and serve 10,633 bus stops.

On the rapid transit system, CTA’s 1,480 rail cars operate eight routes and 224.1 miles of track. CTA trains make about 1,888 trips each day and serve 145 stations.

Chicago is one of the few cities in the world that has rail service to two major airports. CTA’s Blue Line ‘L’ can take customers to O’Hare International Airport. Orange Line trains, which operate clockwise on the Loop ‘L’ structure, travel to Midway Airport.

CTA also provides around-the-clock service on certain routes. During late night and early morning hours, major rail lines and some of CTA’s bus routes offer “Night Owl” service, much of it with connecting schedules and routing.


Chicago Transit Authority is an independent governmental agency created by state legislation. CTA began operating on Oct. 1, 1947, after it acquired the properties of the Chicago Rapid Transit Company and the Chicago Surface Lines. On Oct. 1, 1952, CTA became the predominant operator of Chicago transit when it purchased the Chicago Motor Coach system.

Governance & oversight

The governing arm of CTA is the Chicago Transit Board. Lester L. Barclay serves as chairman. The board consists of seven members, four appointed by the Mayor of Chicago and three by the Governor of Illinois.

The Mayor’s appointees are subject to the approval of the Governor and the Chicago City Council; the Governor’s appointees are subject to the approval of the Mayor and the Illinois State Senate. CTA’s day-to-day operations are directed by Dorval R. Carter, Jr., president.

CTA generates revenue from both farebox collections and non-farebox revenues, and also receives supplemental funding for operating expenses through the Regional Transportation Authority (RTA).

The RTA was established in 1974 to oversee local transportation operators in the six-county Chicago metropolitan area. Illinois state law requires the three RTA service. boards—CTA, Metra (the suburban rail system) and Pace (the suburban bus system)—to recover collectively at least 50 percent of operating costs from farebox and other system revenues.

Statistics & information

Service area

Area served by CTA Chicago and 35 suburbs
Service population 3.2 million
2024 Operating budget $1.996 billion
2024 Capital budget $3.61 billion



Average Weekday (2022)  
Bus 445,445
Rail 317,118
Total system 762,564


Annual (2022)  
Bus 140.0 million
Rail 103.5 million
Total system 243.5 million


Route statistics (2023)

Bus route miles 1,514
Bus miles traveled per day 137,132
Rail track miles 224.1
Rail miles traveled per day 198,844
Miles of elevated structure 35.8
Miles of 'L' at grade level 35.0
Miles of 'L' embankment, etc. 20.6
Miles of subway 11.4
Clearance range of 'L' structure in the Loop 13'3"-19'4"


Number of... (2023)

Buses 1,868
Bus routes 127
Bus stops 10,633
Rail cars 1,496
Rail lines 8
Rail stations 145
Employee positions 10,588


Important transit dates in Chicago

Horse car service began Apr. 25, 1859
Cable car service began Jan. 28, 1882
First electric streetcars Oct. 2, 1890
First rail line June 6, 1892
Loop Elevated opened Oct. 12, 1897
First motor bus service Mar. 25, 1917
Trolley bus service began Apr. 17, 1930
State Street Subway opened Oct. 17, 1943
CTA became operating entity Oct. 1, 1947
Dearborn Subway opened Feb. 25, 1951
Last streetcar ran June 21, 1958
Skokie Swift service began Apr. 20, 1964
Expressway median operation:  
  - Congress (Eisenhower) June 22, 1958
  - Dan Ryan Sept. 28, 1969
  - Kennedy Feb. 1, 1970
Rail service to O'Hare Sept. 3, 1984
Rail service to Midway Oct. 31, 1993
Rail line names switched to colors Feb. 21, 1993
Fare Cards introduced August 18, 1997
Pink Line service began June 25, 2006
Ventra fare system completed July 1, 2014
System status snapshot
‘L’ route status
Red Line
Normal Service
Blue Line
Normal Service
Brown Line
Normal Service
Green Line
Normal Service
Orange Line
Normal Service
Pink Line
Normal Service
Purple Line
Normal Service
Yellow Line
Normal Service
Bus routes w/alerts
Elevator alerts