List of Districts in Assam; India PIN Codes

Districts in Assam

District	Count of Postal Codes
Baksa	129
Barpeta	187
Biswanath	93
Bongaigaon	69
Cachar	283
Charaideo	73
Chirang	65
Darrang	73
Dhemaji	94
Dhubri	127
Dibrugarh	218
Dima Hasao	74
Goalpara	103
Golaghat	145
Hailakandi	98
Hojai	76
Jorhat	187
Kamrup	201
Kamrup Metro	78
Karbi Anglong	95
Karimganj	161
Kokrajhar	104
Lakhimpur	167
Majuli	57
Marigaon	96
Nagaon	212
Nalbari	149
Sivasagar	173
Sonitpur	126
South Salmara Mancachar	27
Tinsukia	142
Udalguri	99
West Karbi Anglong	30

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.