List of Electoral Boundaries Divisions
| Division | 1955 | 1959 | 1963 | 1968 | 1972 | 1976 | 1980 | 1984 | 1988 | 1991 | 1997 | 2001 | 2006 | 2011 | 2015 | 2020 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Alexandra | – | Alexandra SMC | Brickworks GRC | – | – | – | – | – | – | – | ||||||
| Aljunied | – | Aljunied SMC | Aljunied GRC | – | – | – | – | – | ||||||||
| Aljunied–Hougang | – | – | – | – | Aljunied GRC | – | – | – | ||||||||
| Aljunied–Kembangan | – | – | – | – | Aljunied GRC | – | – | – | – | |||||||
| Ang Mo Kio | – | Ang Mo Kio SMC | Ang Mo Kio GRC | – | – | – | – | – | ||||||||
| Ang Mo Kio–Hougang | – | – | – | – | – | – | Ang Mo Kio GRC | |||||||||
| Anson | – | Anson SMC | – | – | – | – | – | – | – | – | ||||||
| Ayer Rajah | – | Ayer Rajah SMC | – | – | – | – | ||||||||||
| Bedok | – | Bedok SMC | Bedok GRC | East Coast GRC | ||||||||||||
| Bedok Reservoir–Punggol | – | – | – | – | – | Aljunied GRC | ||||||||||
| Bishan East | – | – | – | Bishan–Toa Payoh GRC | – | – | ||||||||||
| Bishan East–Thomson | – | – | – | – | – | – | – | Bishan–Toa Payoh GRC | ||||||||
| Bishan North | – | – | – | – | – | – | Bishan–Toa Payoh GRC | |||||||||
| Bishan–Toa Payoh North | – | – | – | Bishan–Toa Payoh GRC | – | – | – | |||||||||
| Bo Wen | – | Bo Wen SMC | – | – | – | – | – | – | – | – | ||||||
| Boon Lay | – | Boon Lay SMC | – | – | – | – | – | |||||||||
| Boon Teck | – | Boon Teck SMC | – | – | – | – | – | – | – | – | ||||||
| Braddell Heights | – | Braddell Heights SMC | – | – | – | – | – | – | ||||||||
| Bras Basah | – | Bras Basah SMC | – | – | – | – | – | – | – | – | – | |||||
| Brickworks | – | Brickworks SMC | Brickworks GRC | – | – | – | – | – | – | |||||||
| Bukit Batok | – | Bukit Batok SMC | Bukit Timah GRC | Jurong GRC | Bukit Batok SMC | |||||||||||
| Bukit Batok East | – | – | – | – | Jurong GRC | |||||||||||
| Bukit Gombak | – | Bukit Gombak SMC | Hong Kah GRC | Chua Chu Kang GRC | ||||||||||||
| Bukit Ho Swee | – | Bukit Ho Swee SMC | – | – | – | – | – | – | – | – | – | |||||
| Bukit Merah | – | Bukit Merah SMC | – | – | – | – | – | – | ||||||||
| Bukit Panjang | Bukit Panjang SMC | Sembawang GRC | Holland–Bukit Panjang GRC | Bukit Panjang SMC | ||||||||||||
| Bukit Timah | Bukit Timah SMC | Bukit Timah GRC | Bukit Timah SMC | Holland–Bukit Timah GRC | ||||||||||||
| Buona Vista | – | Buona Vista SMC | – | Holland–Bukit Panjang GRC | Holland–Bukit Timah GRC | – | – | – | ||||||||
| Cairnhill | Cairnhill SMC | Kampong Glam GRC | – | – | – | – | – | – | ||||||||
| Cashew | – | – | – | – | Holland–Bukit Panjang GRC | Holland–Bukit Timah GRC | ||||||||||
| Changi | Changi SMC | – | – | – | – | – | – | |||||||||
| Changi–Simei | – | – | – | Aljunied GRC | East Coast GRC | |||||||||||
| Changkat | – | Changkat SMC | – | – | – | – | – | – | – | – | ||||||
| Cheng San | – | Cheng San SMC | Cheng San GRC | Ang Mo Kio GRC | – | – | – | – | ||||||||
| Cheng San–Seletar | – | – | – | – | – | Ang Mo Kio GRC | ||||||||||
| Chong Boon | – | Chong Boon SMC | Cheng San GRC | – | – | – | – | – | – | |||||||
| Chua Chu Kang | – | Chua Chu Kang SMC | Chua Chu Kang GRC | |||||||||||||
| Clementi | – | Clementi SMC | – | Brickworks GRC | – | – | – | – | Jurong GRC | |||||||
| Crawford | – | Crawford SMC | – | – | – | – | – | – | – | – | – | |||||
| Delta | – | Delta SMC | – | – | – | – | – | – | – | – | ||||||
| Eunos | – | Eunos SMC | Eunos GRC | Aljunied GRC | ||||||||||||
| Farrer Park | Farrer Park SMC | – | – | – | – | – | – | – | – | – | ||||||
| Fengshan | – | Fengshan SMC | Bedok GRC | East Coast GRC | Fengshan SMC | East Coast GRC | ||||||||||
| Geylang | Geylang SMC | – | – | – | – | – | – | – | – | – | ||||||
| Geylang East | – | Geylang East SMC | – | – | – | – | – | – | – | – | – | |||||
| Geylang Serai | – | Geylang Serai SMC | – | – | – | – | – | – | – | – | ||||||
| Geylang West | – | Geylang West SMC | Jalan Besar GRC | – | – | – | – | – | ||||||||
| Havelock | Havelock SMC | – | – | – | – | – | – | – | – | – | ||||||
| Henderson | – | Henderson SMC | – | – | – | – | – | – | – | – | ||||||
| Hong Kah | – | Hong Kah SMC | – | – | – | – | – | – | – | – | ||||||
| Hong Kah Central | – | Hong Kah GRC | – | – | – | – | – | – | – | |||||||
| Hong Kah East | – | – | Hong Kah GRC | – | – | – | – | – | ||||||||
| Hong Kah North | – | Hong Kah GRC | Hong Kah North SMC | |||||||||||||
| Hong Kah South | – | Hong Kah GRC | – | – | – | – | – | – | ||||||||
| Hong Kah West | – | – | Hong Kah GRC | – | – | – | – | – | ||||||||
| Hong Lim | – | Hong Lim SMC | – | – | – | – | – | – | – | – | – | |||||
| Hougang | – | Hougang SMC | ||||||||||||||
| Jalan Besar | – | Jalan Besar SMC | Jalan Besar GRC | – | – | – | ||||||||||
| Jalan Kayu | – | Jalan Kayu SMC | Cheng San GRC | Ang Mo Kio GRC | ||||||||||||
| Joo Chiat | – | Joo Chiat SMC | – | – | East Coast GRC | Joo Chiat SMC | – | – | ||||||||
| Jurong | – | Jurong SMC | Bukit Timah GRC | – | – | – | – | – | ||||||||
| Jurong Central | – | – | – | – | Jurong GRC | |||||||||||
| Jurong Spring | – | – | – | – | – | – | Jurong GRC | |||||||||
| Kallang | – | Kallang SMC | Jalan Besar GRC | – | – | – | – | – | – | |||||||
| Kaki Bukit | – | Kaki Bukit SMC | Eunos GRC | East Coast GRC | – | Aljunied GRC | ||||||||||
| Kampong Chai Chee | – | Kampong Chai Chee SMC | Bedok GRC | East Coast GRC | ||||||||||||
| Kampong Glam | – | Kampong Glam SMC | Kampong Glam GRC | Kampong Glam SMC | Jalan Besar GRC | – | Jalan Besar GRC | |||||||||
| Kampong Kapor | Kampong Kapor SMC | – | – | – | – | – | – | – | – | – | ||||||
| Kampong Kembangan | – | Kampong Kembangan SMC | Aljunied GRC | – | – | – | – | – | ||||||||
| Kampong Ubi | – | Kampong Ubi SMC | Aljunied GRC | – | – | – | – | – | – | |||||||
| Katong | Katong SMC | – | Katong SMC | – | – | – | – | – | – | – | – | – | ||||
| Keat Hong | – | – | – | – | Hong Kah GRC | Chua Chu Kang GRC | ||||||||||
| Kebun Baru | – | Kebun Baru SMC | Ang Mo Kio GRC | – | Kebun Baru SMC | |||||||||||
| Kembangan–Punggol | – | – | – | – | Aljunied GRC | – | – | – | – | |||||||
| Khe Bong | – | Khe Bong SMC | – | – | – | – | – | – | – | – | ||||||
| Kim Keat | – | Kim Keat SMC | – | – | – | – | – | – | – | |||||||
| Kim Seng | – | Kim Seng SMC | Kampong Glam GRC | – | – | – | – | – | – | |||||||
| Kolam Ayer | – | Kolam Ayer SMC | Jalan Besar GRC | – | Jalan Besar GRC | |||||||||||
| Kreta Ayer | – | Kreta Ayer SMC | – | – | – | – | – | – | ||||||||
| Kreta Ayer–Kim Seng | – | – | – | – | Jalan Besar GRC | – | Jalan Besar GRC | |||||||||
| Kuo Chuan | – | Kuo Chuan SMC | – | – | – | – | – | – | – | – | ||||||
| Leng Kee | – | Leng Kee SMC | – | – | – | – | – | – | ||||||||
| MacPherson | – | MacPherson SMC | – | MacPherson SMC | – | MacPherson SMC | ||||||||||
| Moulmein | – | – | – | – | – | – | – | – | – | Kampong Glam GRC | – | – | – | – | – | – |
| Nanyang | – | – | – | – | – | – | – | – | – | – | Hong Kah GRC | Chua Chu Kang GRC | ||||
| Nee Soon South | – | – | – | – | – | – | – | – | – | – | Ang Mo Kio GRC | – | – | – | ||
| Pasir Ris | – | – | – | – | – | – | – | – | – | Eunos GRC | – | – | – | – | – | – |
| Paya Lebar | Paya Lebar SMC | Aljunied GRC | ||||||||||||||
| Punggol | – | – | – | – | – | – | – | – | – | Cheng San GRC | – | – | – | – | – | – |
| Punggol Central | – | – | – | – | – | – | – | – | – | – | Cheng San GRC | – | – | – | – | – |
| Punggol East | – | – | – | – | – | – | – | – | – | – | Cheng San GRC | – | – | – | – | – |
| Punggol South | – | – | – | – | – | – | – | – | – | – | Cheng San GRC | – | – | – | – | – |
| Queenstown | – | – | – | – | – | – | – | – | Brickworks GRC | – | – | – | – | – | – | |
| Sengkang South | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Ang Mo Kio GRC | |
| Sengkang West | – | – | – | – | – | – | – | – | – | – | – | – | Ang Mo Kio GRC | – | – | – |
| Serangoon | – | – | – | – | – | – | – | – | – | – | – | – | Aljunied GRC | |||
| Siglap | – | – | – | – | – | – | – | – | – | Bedok GRC | East Coast GRC | |||||
| Taman Jurong | – | – | – | – | – | – | – | – | – | – | – | Jurong GRC | ||||
| Tampines North | – | – | – | – | – | – | – | – | Eunos GRC | – | – | – | – | – | – | |
| Tanah Merah | – | – | – | – | – | – | – | – | Bedok GRC | – | – | – | – | – | – | – |
| Teck Ghee | – | – | – | – | – | – | – | – | – | Ang Mo Kio GRC | ||||||
| Thomson | – | – | – | – | – | – | – | – | – | – | Bishan–Toa Payoh GRC | – | – | – | ||
| Thomson–Toa Payoh | – | – | – | – | – | – | – | – | – | – | – | – | – | Bishan–Toa Payoh GRC | – | – |
| Toa Payoh Central | – | – | – | – | – | – | – | – | – | – | Bishan–Toa Payoh GRC | |||||
| Toa Payoh East | – | – | – | – | – | – | – | – | – | – | Bishan–Toa Payoh GRC | – | – | |||
| Toa Payoh East–Novena | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Bishan–Toa Payoh GRC | |
| Toa Payoh West–Balestier | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Bishan–Toa Payoh GRC | |
| Ulu Pandan | – | – | – | – | – | – | – | – | – | – | Bukit Timah GRC | Holland–Bukit Panjang GRC | Holland–Bukit Timah GRC | |||
| West Coast | – | – | – | – | – | – | – | – | – | Brickworks GRC | – | – | – | – | – | – |
| Whampoa | – | – | – | – | – | – | – | – | – | – | Jalan Besar GRC | – | Jalan Besar GRC | |||
| Yew Tee | – | – | – | – | – | – | – | – | – | – | Hong Kah GRC | Chua Chu Kang GRC | – | – | ||
| Yio Chu Kang | – | – | – | – | – | – | – | – | – | Ang Mo Kio GRC | Yio Chu Kang SMC | Ang Mo Kio GRC | Yio Chu Kang SMC | |||
| Yuhua | – | Yuhua SMC | Bukit Timah GRC | Jurong GRC | Yuhua SMC | |||||||||||
| Zhenghua | – | – | – | – | – | – | – | – | – | – | – | Holland–Bukit Panjang GRC | Holland–Bukit Timah GRC | |||