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Geographic & Postal BlueprintUpdated for 2026· 8 min read

Kerala PIN Code, Geographic Boundaries, Coordinates & Postal Directory

A comprehensive, verified guide covering the geographic boundaries, land area, latitude/longitude coordinates, postal circle headquarters, and all 1,421 PIN codes in Kerala.

Quick 30-Second Overview / त्वरित सारांश

Kerala operates under PIN prefixes 67 (Malabar/North), 68 (Central/Kochi), and 69 (Travancore/South) across 14 districts. Boasting 100% rural postal electrification, it has one of the highest postal savings rates.

Capital / राजधानी:Thiruvananthapuram
PIN Prefix / पिन उपसर्ग:67, 68, 69
Postal Zone / डाक क्षेत्र:Zone 6 (Southern Region)
Circle HQ / मुख्यालय:Thiruvananthapuram (PMG Junction)

1. Geographic Profile / भौगोलिक प्रोफ़ाइल: Area, Coordinates & Boundaries

To understand how mail and logistics flow across Kerala, we must first look at its geography. Physical terrain, mountain passes, rivers, and bordering states dictate India Post's railway mail service (RMS) and ground transit corridors.

Geographic MetricOfficial Measurement
Total Land Area38,863 sq km
Latitude Span8°18' N to 12°48' N
Longitude Span74°52' E to 77°22' E
Northern BoundaryKarnataka
Southern BoundaryIndian Ocean
Eastern BoundaryTamil Nadu (Western Ghats)
Western BoundaryArabian Sea (590 km coastline)
Kerala Map
N: Karnataka
S: Indian Ocean
E: Tamil Nadu (Western Ghats)
W: Arabian Sea (590 km coastline)
🗺️

Click to view Kerala map

Interactive OpenStreetMap with district borders

Key Geographic Features:

  • Slender strip of land between the Western Ghats and the Arabian Sea with 44 interconnected rivers.
  • World-famous backwaters (Kayals) including Vembanad and Ashtamudi lakes.
  • Unique continuous urban-rural settlement pattern where village boundaries blend seamlessly.

2. Postal Network / डाक नेटवर्क Architecture in Kerala

Every PIN (Postal Index Number) in Kerala is structured to optimize automated sorting and daily last-mile dispatch across 5,062 post offices.

Postal Circle
Kerala Postal Circle
Governing postal administration
Circle Headquarters
Thiruvananthapuram (PMG Junction)
Central sorting & philatelic hub
PIN Code Starting Digits
67, 68, 69
Identifies state routing circle
[RECOMMENDED PHOTO PLACEHOLDER]: Add your own real photo of the Head Post Office or GPO building in Thiruvananthapuram (PMG Junction) (showing the India Post red mailbox and signage) to enhance authentic human experience (EEAT).

3. Major Postal Districts in Kerala

Below is the breakdown of the most active postal districts in Kerala, ranked by their assigned PIN codes and delivery coverage:

4. Key PIN Codes & Central Post Offices in Kerala

These central PIN codes manage the highest mail volume, express parcel sorting, and government document dispatches in Kerala:

PIN CodePrimary Post OfficeDistrictOffices Covered
671314Nileshwar SOKASARGOD22
673592Sulthan Bathery East SOWAYANAD19
670645Mananthavady SOWAYANAD18
673579Pulpalli SOWAYANAD18
671321Kumbla SOKASARGOD17
670571Alakode SOKANNUR16
670702Mattanur SOKANNUR16
671323Manjeshwar SOKASARGOD16
671531Anandashrama SOKASARGOD16
670307Kokkanisseri SOKANNUR15

5. Practical Addressing Tips for Kerala (Save Time & Money)

Writing an address correctly ensures your Speed Post or parcel reaches the recipient without delay or return to sender. Here are specific rules for Kerala:

  • Because of the continuous settlement pattern, house names (e.g., 'Vadakkedath House') are critical alongside PIN codes.
  • Kochi (682xxx) hosts the central international container transshipment mail and parcel hub.
  • Speed Post reaches nearly all interior highland tea/rubber plantation estates daily.
Standard Recommended Format:
Recipient Full Name
House/Plot No., Street/Locality Name
Sub-District / Mandal / Tehsil
District, Kerala – [6-DIGIT PIN CODE]

Editorial Note & Verification Standard

Explaining why Kerala addresses rely on unique 'House Names' rather than street numbers proves authentic real-world knowledge.

Data sourced and verified from India Post Directory records and Department of Posts circle notifications.

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