Sikkim belongs to the Postal Zone 7 of India. And the state having a total of 23 PIN codes and 211 post offices, out of which 1 head post offices, 27 sub-post offices, 0 branch post office (direct) and 183 branch posts offices. All PIN code in the postal zone start with zone code 7, where PIN code of Sikkim starts with the prefix 7371. There has no GPO in the state Sikkim.
District wise Pin code directory lists of Sikkim. Search for the pin code of all post offices in each district in Sikkim, India.