Singapore is divided into Five regions, namely the Central Region, the Northern Region, the Northeastern Region, the Eastern Region, and the Western Region. These Five regions are further subdivided into smaller regions.

Central Region 

The Central Region can be divided into two sub-regions, i.e. Core Central Region (CCR) and Rest Central Region (RCR)

Core Central Region (CCR)

The Core Central Region comprises of the following areas:

• Downtown Core (Marina Bay, Marina Centre, Raffles Place, Tanjong Pagar)
• Marine Parade
• Mount Vernon
• Newton
• Novena
• One-North
• Orchard
• Outram
• Potong Pasir
• Queenstown
• Radin Mas
• Raffles City
• River Valley
• Robinson Road
• Rochor
• Sentosa
• Shenton Way
• Stevens Road
• Sungei Road
• Tanglin
• Tanjong Rhu
• Telok Blangah
• Thomson
• Tiong Bahru
• Toa Payoh
• Ubi
• Whampoa

Rest of Central Region (RCR)

The Rest Central Region comprises the following fields:

• Alexandra
• Anson Road
• Ayer Rajah
• Balestier
• Bencoolen
• Bidadari
• Boon Keng
• Bukit Gombak
• Bukit Merah
• Bukit Purmei
• Bukit Timah
• Caldecott Hill
• Chinatown
• Clarke Quay
• Commonwealth
• Dhoby Ghaut
• Dover
• Emerald Hill
• Esplanade
• Farrer Park
• Ghim Moh
• Geylang
• HarbourFront
• Kallang
• Katong
• Kent Ridge
• Labrador Park
• Lavender
• Little India

Northern Region

The Northern Region comprises the following fields:

• Central Water Catchment
• Lim Chu Kang
• Mandai
• Sembawang
• Simpang
• Sungei Kadut
• Woodlands
• Yishun

Northeastern Region

The Northeastern Region comprises the following fields:

• Ang Mo Kio
• Bishan
• Buangkok
• Cheng San
• Chong Boon
• Hougang
• Kebun Baru
• Punggol
• Seletar
• Sengkang (Sengkang New Town, Rivervale, Compassvale, Anchorvale, Fernvale, Jalan Kayu)
• Serangoon
• Sin Ming
• Yio Chu Kang

Eastern Region

The Eastern Region comprises the following fields:

• Aljunied
• Bartley
• Bedok
• Changi
• East Coast
• Eunos
• Kembangan
• Loyang
• Pasir Ris
• Paya Lebar
• Simei
• Tai Seng
• Tampines

Western Region

The Western Region comprises the following fields:

• Boon Lay
• Bukit Batok
• Bukit Panjang
• Buona Vista
• Chin Bee
• Choa Chu Kang
• Clementi
• Hillview
• Holland Village
• Joo Koon
• Jurong East
• Jurong West
• Pasir Panjang
• Pioneer
• Teban Gardens
• Tengah
• Toh Tuck
• Tuas
• West Coast
• Yew Tee
• Yuhua