| Station Number | Station Name | Details | Interchange |
| CC1 | Dhoby Ghaut | The Dhoby Ghaut MRT station is an underground station. It first opened on 12 December, 1987, for the North South Line. It became an interchange when the North East Line opened on 20 June, 2003. It is one of two MRT stations with travellators - the other being the Serangoon MRT Station. On 17 April, 2010, the Dhoby Ghaut station links to the Circle Line, becoming the only interchange station in Singapore serving three lines, and the biggest MRT Station in Singapore. The Dhoby Ghaut station is the second deepest station, reaching a depth of 28 meters, equivalent to a five-storey building, and surpassed in depth only by the Bras Basah Station. | |
| CC2 | Bras Basah | The Bras Basah MRT Station is an underground station that opened on 17 April, 2010. It is located in front of the Singapore Art Museum. At a depth of 35 meters below ground, this is the deepest station in the system, with the longest single escalator, at 41.3 meters. | NONE |
| CC3 | Esplanade | The Esplanade MRT station is an underground station that opened on 17 April 2010. It is located next to the War Memorial Park and Suntec City Convention Centre. | NONE |
| CC4 | Promenade | The Promenade MRT Station is an underground station that opened on 17 April 2010. It is located along Temasek Avenue, near Millennia Walk. This station will in future become an interchange when the Downtown Line passes through it in 2013. The Circle Line is also planned to fork into two branches, with a yet to be completed branch towards Marina Bay station via Bayfront station. | DT15 |
| Stations and Interchanges below are still under construction |
| CE1 | Bayfront | The Bayfront MRT Station is an underground station presently under construction. It will open in 2012 for the Circle Line and become an interchange station when the Downtown Line begins serving it in 2013. | DT16 |
| CE2 | Marina Bay | The Marina Bay MRT Station is an underground station presently serving the North South MRT Line. It will become an interchange with the Circle Line in 2012. | NS27
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| Stations below are operational except for Bukit Brown MRT Station (CC18) |
| CC5 | Nicoll Highway | The Nicoll Highway MRT Station is an underground station which opened on 17 April, 2010.
The completion date of Stage 1 of the Circle Line was pushed back from 2008 to 2010 due to an accident which took place on 20 April, 2004, when the Nicoll Highway collapse, killing four and injuring two. The accident caused the Nicoll Highway station to be shifted some 100 meters from the originally planned location. | NONE |
| CC6 | Stadium | The Stadium MRT Station is an underground station which opened on 17 April 2010 when Stages 1 & 2 of Circle Line commenced operations. The station will serve the future Singapore Sports Hub where various sports facilities and stadiums are located. | NONE |
| CC7 | Mountbatten | The Mountbatten MRT Station is an underground station which opened on 17 April 2010 along with the other stations in Stages 1 & 2 of Circle Line. Constructing this station posed a challenge because the line intersects with the underground Kallang-Paya Lebar Expressway, which was also under construction at the same time. | NONE |
| CC8 | Dakota | The Dakota MRT Station is an underground station of the Circle Line that opened on 17 April 2010 serving the residents of the surrounding HDB flats and students in the schools nearby. | NONE |
| CC9 | Paya Lebar | The Paya Lebar MRT Station is the first interchange station in the Singapore MRT system to serve both the above-ground East West Line and the underground Circle Line. The Circle Line began operations here on 17 April, 2010. Commuters transferring between lines can either use the series of escalators or use the barrier-free link. | EW8 |
| CC10 | MacPherson | The MacPherson MRT Station is an underground station that opened on 17 April, 2010. It is located along Paya Lebar Road. The future Downtown Line is planned to serve this station when it passes through here. Operations is slated for 2016. | DT26 |
| CC11 | Tai Seng | The Tai Seng MRT Station is an underground station of the Circle Line which opened on 17 April, 2010. It is located at the junction of Upper Paya Lebar Road and Tai Seng Link. | NONE |
| CC12 | Bartley | The Bartley MRT Station is an underground station of the Circle Line which first opened on 28 May 2009 and served as the terminal of the Circle Line until it was extended to the Dhoby Ghaut MRT Station on 17 April, 2010. | NONE |
| CC13 | Serangoon | The Serangoon MRT Station is an underground station that serves as an interchange for the North East Line, which opened on 20 June, 2003, and Circle Line, which opened on 28 May, 2009. Connecting the North-East to the Circle Lines is a 73-meter travellator, 20-meter longer than the one at the Dhoby Ghaut Station. | NE12 |
| CC14 | Lorong Chuan | The Lorong Chuan MRT Station is an underground station for the Circle Line. It opened on 28 May, 2009, serving the surrounding schools and colleges. | NONE |
| CC15 | Bishan | The Bishan MRT Station is an underground station originally built for the North South Line, and then integrated with an interchange to the Circle Line on 28 May, 2009. | NS17 |
| CC16 | Marymount | The Marymount MRT Station is an underground station on the Circle Line. As with the other stations on Stage 3 of the Circle Line, it opened on 28 May 2009. | NONE |
| CC17 | Caldecott | The Caldecott MRT Station is an underground station for the Circle Line which became operational on 8 October, 2011. It is part of Stage 4 of the Circle Line. Caldecott Station will also become an interchange when the planned Thomson Line passes through it in 2018. | NONE |
| CC18 | Bukit Brown | The name Bukit Brown MRT Station is a working name of an MRT station on the Circle Line. It is the only station not to open when the line went into operation between Marymount and HarbourFront on 8 October 2011. | NONE |
| CC19 | Botanic Gardens | The Botanic Gardens MRT Station is an underground station on Stage 4 of the Circle Line which came into operation on 8 October 2011. It is located on the northern end of the Singapore Botanic Gardens. | DT9 |
| CC20 | Farrer Road | The Farrer Road MRT Station is an underground station for the Circle Line which began operations on 8 October 2011. | NONE |
| CC21 | Holland Village | The Holland Village MRT Station is an underground station on the Circle Line Stage 4 that went into operation on 8 October 2011. | NONE |
| CC22 | Buona Vista | The Buona Vista MRT Station serves the Buona Vista township. This above ground station is an interchange with the fully underground Circle Line that connects to it on 8 October 2011. Nearby sights include the National University of Singapore and the National University Hospital. | EW8 |
| CC23 | one-north | The one-north MRT Station is an underground station on the Circle Line that opened on 8 October 2011. | NONE |
| CC24 | Kent Ridge | The Kent Ridge MRT Station is an underground station on Stage 4 of the Circle Line that opened to the public on 8 October 2011. It serves the National University Hospital as well as the National University of Singapore and Singapore Science Park. | NONE |
| CC25 | Haw Par Villa | The Haw Par Villa MRT Station is an underground station of the Circle Line. Initially planned to be operational when there are more development in the neighbourhood, the Har Par Villa MRT Station nonetheless was put into operation on 8 October 2011. | NONE |
| CC26 | Pasir Panjang | The Pasir Panjang MRT Station is an underground station on the Circle Line that came into operation on 8 October 2011. | NONE |
| CC27 | Labrador Park | The Labrador Park MRT Station is an underground station that opened to use on 8 October 2011. | NONE |
| CC28 | Telok Blangah | The Telok Blangah MRT Station is an underground station that began operating on 8 October 2011. | NONE |
| CC29 | HarbourFront | The HarbourFront MRT Station is an underground station on the North East Line. It became an interchange when the Circle Line began operating to it on 8 October 2011. The Harbour Front Station opened on 20 June, 2003 for the North East Line. This is the station to go to Sentosa, HarbourFront Centre and Vivo City. | NE1 |