The 1991 General Elections (GE) in Singapore has no increase in the number of seats. Therefore the total divisions remain at 81. (There is some specific division change, though.)
The official result can be obtained through
Official results and electoral divisions in 1991 General Elections of Singapore.

One interesting point to note is in this GE, the number of Opposition Party's candidate had increased from 1 to 4 where 3 of them are from Singapore Democratic Party

Singapore Democratic Party

The Singapore Democratic Party is an opposition political party in Singapore.The party was founded in 1980 by Chiam See Tong, who as Secretary-General became the party's first Member of Parliament in 1984 when he was elected as MP for Potong Pasir...

 and 1 of them in Workers Party of Singapore. All of them represents a Single Member Constituency. It is one of the highest number of opposition party members by far in the GE held in Singapore since 1959 GEs despite no Opposition Candidates had won a Group Representative Constituency(GRC).

With the system of GRC, the divisions has drastically reduced (Up to 3 / 4 seats counted as 1 division in GRC), despite actual division is 81.

Group Representation Constituencies

• Aljunied GRC
  Aljunied Group Representation Constituency
  Aljunied Group Representation Constituency is a five-member group representation constituency in the north-eastern region of Singapore. The GRC consists of a large part of Hougang, Serangoon Gardens, a portion of Bedok and Aljunied...
  
  
• Ang Mo Kio GRC
  Ang Mo Kio Group Representation Constituency
  Ang Mo Kio Group Representation Constituency is a six-member Group Representation Constituency in the north eastern region of Singapore...
  
  
• Bedok GRC
  Bedok Group Representation Constituency
  Bedok Group Representation Constituency is a defunct Group Representation Constituency in Bedok, Singapore that existed from 1988 to 1997.-Members of Parliament:-Elections in 1990s:...
  
  
• Brickworks GRC
  Brickworks Group Representation Constituency
  Brickworks Group Representation Constituency is a defunct Group Representation Constituency in Bukit Merah, Singapore from 1988 to 1997.-Etymology:...
  
  
• Cheng San GRC
  Cheng San Group Representation Constituency
  Cheng San Group Representation Constituency is a now defunct Group Representation Constituency in the north-eastern region in Singapore...
  
  
• Eunos GRC
  Eunos Group Representation Constituency
  Eunos Group Representation Constituency is a defunct Group Representation Constituency in the north-eastern region of Singapore...
  
  
• Hong Kah GRC
  Hong Kah Group Representation Constituency
  Hong Kah Group Representation Constituency was a five-member Group Representation Constituency located in the western area of Singapore. The constituency covered the areas of Bukit Batok, Choa Chu Kang, Upper Bukit Timah, Jurong West and Lim Chu Kang...
  
  
• Jalan Besar GRC
  Jalan Besar Group Representation Constituency
  Not to be confused with the smaller ward that existed since pre-indepence era named as Jalan Besar Single Member Constituency, which is also where the ex-minister Lee Boon Yang made his first debut there....
  
  
• Kampong Glam GRC
  Kampong Glam Group Representation Constituency
  Kampong Glam Group Representation Constituency is a former four member Group Representation Constituency in the Central Business District of Singapore, only in 1991 election.-Members of Parliament:...
  
  
• Marine Parade GRC
  Marine Parade Group Representation Constituency
  Marine Parade Group Representation Constituency is a six-member Group Representation Constituency located in the central, eastern and north-eastern areas of Singapore. The constituency consists of a section of Bedok, Chai Chee, Geylang, Kaki Bukit, Kallang, Kembangan, Marine Parade, Mountbatten,...
  
  
• Sembawang GRC
  Sembawang Group Representation Constituency
  Sembawang Group Representation Constituency is a five-member Group Representation Constituency located in the northern area of Singapore. The GRC consists of Sembawang, Woodlands, Marsiling, Admiralty, Canberra and Chong Pang...
  
  
• Tampines GRC
  Tampines Group Representation Constituency
  Tampines Group Representation Constituency is a five-member Group Representation Constituency in the eastern region of Singapore...
  
  
• Tanjong Pagar GRC
  Tanjong Pagar Group Representation Constituency
  Tanjong Pagar Group Representation Constituency is currently a five-member Group Representation Constituency in central Singapore....
  
  
• Thomson GRC
• Toa Payoh GRC

Single Member Constituencies

• Ayer Rajah
  Ayer Rajah Single Member Constituency
  Ayer Rajah Single Member Constituency is a former single member constituency in Singapore that existed since 1980 by crafting this portion from the then Bukit Timah SMC; Ayer Rajah SMC was made up of Pandan Gardens estate, Teban Gardens estate, parts of Jurong East New Town and Clementi West New...
  
  
• Boon Lay
  Boon Lay Single Member Constituency
  Boon Lay Single Member Constituency is a former single member constituency in Boon Lay, Singapore that was formed in 1976 til 2001 where the then incumbent Goh Chee Wee had retired from politics which consequently, this ward was subsequently absorbed into West Coast GRC.-Members of...
  
  
• Braddell Heights
• Bukit Batok
• Bukit Gombak
  Bukit Gombak Single Member Constituency
  Bukit Gombak Single Member Constituency is a defunct Single Member Constituency in the western area in Singapore. The seat consists of Bukit Gombak New Town with it consisting of Bukit Gombak MRT station and a few private housing estates such as Hillview areas...
  
  
• Bukit Merah
• Bukit Timah
  Bukit Timah Single Member Constituency
  Bukit Timah Single Member Constituency is a former single-member constituency in Bukit Timah, Singapore, and is one of the oldest since 1959 until 1997 whereby it was absorbed into the then Bukit Timah GRC along with Bukit Batok, Jurong, Ulu Pandan and Yuhua.In 2001, it reappeared as Bukit Batok...
  
  
• Buona Vista
• Changi
  Changi Single Member Constituency
  Changi Single Member Constituency is a defunct single member constituency in Changi and eastern outer islands such as Pulau Ubin , Singapore; from 1951 elections to 1997 elections which most of the part had absorbed into Siglap ward in East Coast GRC while the remaining were to form as...
  
  
• Chua Chu Kang
  Chua Chu Kang Single Member Constituency
  Chua Chu Kang Single Member Constituency is a defunct Single Member Constituency located in the western region of Singapore. The constituency encompasses Choa Chu Kang New Town...
  
  
• Hougang
  Hougang Single Member Constituency
  Hougang Single Member Constituency is a Single Member Constituency whose borders roughly enclose the town of Hougang, located in the north-eastern area of Singapore. The boundary includes a portion of Hougang and is an opposition held seat with its Member of Parliament the Workers' Party's Yaw...
  
  
• Jurong
  Jurong Single Member Constituency
  Jurong Single Member Constituency is a defunct Single Member Constituency in the western area in Singapore mainly in Jurong and Tuas area that existed since 1959 general elections by craving a portion from the then defunct Bukit Timah SMC til prior to 1997 general elections where it was absorbed...
  
  
• Kreta Ayer
• Leng Kee
• Mountbatten
  Mountbatten Single Member Constituency
  Mountbatten Single Member Constituency is a Single-Member Constituency in the Central Part of Singapore. Formerly a ward of Marine Parade GRC from 1997 till 2011...
  
  
• Nee Soon Central
  Nee Soon Central Single Member Constituency
  Nee Soon Central Single Member Constituency is a defunct Single Member Constituency in the northern area in Singapore. The seat consists of Yishun New Town with it consisting of Yishun Central and a few private housing estates in the vicinity...
  
  
• Nee Soon South
  Nee Soon South Single Member Constituency
  Nee Soon South Single Member Constituency is a defunct single member constituency in southern part of Yishun, namely Khatib and parts of Yio Chu Kang , Singapore that is formed after Yishun had been developed since 1988 when the pre-independence era Nee Soon ward was breakup into several...
  
  
• Potong Pasir
  Potong Pasir Single Member Constituency
  Potong Pasir Single Member Constituency is a Single Member Constituency in the central region of Singapore.-Location:The SMC encompasses Potong Pasir, Lorong 8 Toa Payoh and Tannery...
  
  
• Tanglin
  Tanglin Single Member Constituency
  Tanglin Single Member Constituency is a defunct Single Member Constituency in the city area in Singapore that existed since 1951 general elections by craving a portion from the then defunct til prior to 1997 general elections where it was absorbed into the then defunct Kreta Ayer-Tanglin GRC and...
  
  
• Ulu Pandan
• Yuhua
  Yuhua Single Member Constituency
  Yuhua Single Member Constituency is a Single Member Constituency located in the western area of Singapore. The ward covers the area of Yuhua...
  
  

External links

• Map of electoral divisions
• List of Past Singapore Elections Divisions
  Past Singaporean electoral divisions
  This is a list of past arrangements of electoral divisions in Singapore. Each division sends one member to the Parliament of Singapore.*List of Singaporean electoral divisions 1948-1951 - 6 seats*List of Singaporean electoral divisions 1951-1955 - 9 seats...