Chicago "L" Blue Line
| Network | Chicago "L" |
| Line | Blue Line |
| Line length | 43.3 |
| Opening date | 21 February 1951 |
| Line type | Rapid Transit |
| Total station | 31 Active Stations |
| Terminals | O'Hare ⇄ O'Hare |
Stations
| Station | Layout | Operation starts | |
|---|---|---|---|
| ▣ | O'Hare | Underground | 3 September 1984 |
| ▣ | Rosemont | Expressway median | 27 February 1983 |
| ▣ | Cumberland | Expressway median | 27 February 1983 |
| ▣ | Harlem | Expressway median | 20 March 1960 |
| ▣ | Jefferson Park | Expressway median | 1 February 1970 |
| ▣ | Montrose | Expressway median | 1 February 1970 |
| ▣ | Irving Park | Expressway median | 1 February 1970 |
| ▣ | Addison | Expressway median | 1 February 1970 |
| ▣ | Belmont | Underground | 1 February 1970 |
| ▣ | Logan Square | Underground | 1 February 1970 |
| ▣ | California | Elevated | 25 May 1895 |
| ▣ | Western | Elevated | 25 May 1895 |
| ▣ | Damen | Elevated | 6 May 1895 |
| ▣ | Division | Underground | 25 February 1951 |
| ▣ | Chicago | Underground | 25 February 1951 |
| ▣ | Grand | Underground | 25 February 1951 |
| ▣ | Clark/Lake | Elevated/underground | 22 September 1895 |
| ▣ | Washington | Underground | 25 February 1951 |
| ▣ | Monroe | Underground | 25 February 1951 |
| ▣ | Jackson | Underground | 25 February 1951 |
| ▣ | LaSalle | Underground | 25 February 1951 |
| ▣ | Clinton | Underground | 22 June 1958 |
| ▣ | UIC–Halsted | Expressway median | 22 June 1958 |
| ▣ | Racine | Expressway median | 22 June 1958 |
| ▣ | Illinois Medical District | Expressway median | 22 June 1958 |
| ▣ | Western | Elevated | 25 May 1895 |
| ▣ | Kedzie–Homan | Expressway median | 22 June 1958 |
| ▣ | Pulaski | Expressway median | 22 June 1958 |
| ▣ | Cicero | Expressway median | 22 June 1958 |
| ▣ | Austin | Expressway median | 20 March 1960 |
| ▣ | Oak Park | Expressway median | 20 March 1960 |
| ▣ | Harlem | Expressway median | 20 March 1960 |
| ▣ | Forest Park | Elevated | 11 March 1905 |
Metro Map
Other Lines
| Metro lines | Stations | Terminal stations | |
|---|---|---|---|
| ▣ | Brown Line | 27 | Kimball ⇄ The Loop, Belmont |
| ▣ | Green Line | 28 | Harlem ⇄ Ashland/63rd |
| ▣ | Green Line | 28 | Harlem ⇄ Cottage Grove |
| ▣ | Orange Line | 16 | Midway ⇄ The Loop |
| ▣ | Pink Line | 21 | 54th/Cermak ⇄ The Loop |
| ▣ | Purple Line | 26 | Linden ⇄ The Loop |
| ▣ | Red Line | 33 | Howard ⇄ 95th/Dan Ryan |
| ▣ | Yellow Line | 4 | Howard ⇄ Dempster–Skokie |
Other Metro
| Metro Network | Lines | Stations | |
|---|---|---|---|
| Boston MBTA Subway | 9 | 126 | |
| Los Angeles Metro | 6 | 104 | |
| Washington Metro | 6 | 100 | |
| SEPTA Rapid transit | 4 | 71 | |
| San Francisco BART | 6 | 50 | |
| RTA Rapid Transit | 4 | 48 | |
| Atlanta Metro (MARTA) | 4 | 38 | |
| Miami Metrorail | 2 | 23 | |
| Baltimore Metro Subway | 1 | 14 | |
| PATCO Speedline | 1 | 14 | |