Kolkata PIN Codes – Complete Directory
All 6-digit postal codes for Kolkata areas, localities & post offices
Kolkata (formerly Calcutta), the capital of West Bengal, uses 6-digit PIN codes starting with 700. The postal network is administered exactly under the West Bengal Postal Circle covering Kolkata, Howrah, and the surrounding 24 Parganas districts. Below is a comprehensive, searchable directory of Kolkata PIN codes organized by locality and zone.
| PIN Code | Area / Locality | Post Office Name | Zone / Region |
|---|---|---|---|
| 700001 | BBD Bagh, Esplanade, Kolkata GPO | Kolkata GPO | Central Kolkata Central |
| 700002 | Cossipore | Cossipore SO | North Kolkata North |
| 700003 | Baghbazar | Baghbazar SO | North Kolkata North |
| 700004 | Shyambazar | Shyambazar SO | North Kolkata North |
| 700010 | Beliaghata | Beliaghata SO | East Kolkata East |
| 700016 | Park Street | Park Street SO | Central Kolkata Central |
| 700019 | Ballygunge | Ballygunge SO | South Kolkata South |
| 700029 | Kalighat, Rashbehari | Kalighat SO | South Kolkata South |
| 700032 | Jadavpur University | Jadavpur SO | South Kolkata South |
| 700064 | Salt Lake City (Bidhannagar) | Salt Lake SO | East Kolkata East |
| 700091 | Salt Lake Sector 5 | Salt Lake Sec V SO | East Kolkata East |
| 700106 | Salt Lake Sector 3 | Sech Bhavan SO | East Kolkata East |
| 700156 | New Town Action Area 1 | New Town SO | East Kolkata East |
Can't find your locality? Use our live PIN code search tool to look up any Kolkata post office instantly.
About Kolkata's Postal Network
Kolkata (Calcutta) operates under the West Bengal Postal Circle. As part of Postal Zone 7 (Eastern India), all Kolkata PIN codes begin with 700. The Kolkata General Post Office (GPO), located in the B. B. D. Bagh area (PIN 700001), is a prominent landmark and the central hub that manages the vast volume of mail moving through the city and surrounding districts.
Understanding the 6-Digit PIN Code System
The Postal Index Number (PIN) system was introduced on August 15, 1972, to streamline the sorting and delivery of mail across India. The 6-digit structure solves the issue of manual sorting errors caused by duplicate town names and varied languages:
- First Digit (Zone): Represents the broad geographical region. For example, 7 is for East India (including West Bengal).
- Second Digit (Circle): Indicates the postal sub-region. Together with the first digit, 70 represents the West Bengal circle.
- Third Digit (Sorting District): Targets the specific sorting hub within the region.
- Last 3 Digits (Post Office): These pinpoint the exact delivery post office building that serves your local street or sector.
Ensuring you use the complete and correct 6-digit code is critical for banking applications (KYC), government documents, online shopping deliveries, and official correspondence.