List of Districts in Kerala; India PIN Codes

Districts in Kerala

District	Count of Postal Codes
Alappuzha	299
Ernakulam	394
Idukki	296
Kannur	386
Kasaragod	232
Kollam	367
Kottayam	406
Kozhikode	409
Malappuram	436
Palakkad	456
Pathanamthitta	319
Thiruvananthapuram	414
Thrissur	485
Wayanad	163

A Postal Index Number (PIN or PIN Code) refers to a six-digit code in the Indian postal code system used by India Post.

The PIN system was introduced on 15 August 1972. The first digit of a PIN indicates the zone, the second indicates the sub-zone, and the third, combined with the first two, indicates the sorting district within that zone. The final three digits are assigned to individual post offices within the sorting district.