Districts in Sikkim
| District | PIN codes | Post offices |
|---|---|---|
| East District | 7 | 51 |
| North District | 4 | 27 |
| Pakyong | 4 | 32 |
| Soreng | 1 | 3 |
| South District | 6 | 51 |
| West District | 3 | 48 |
Head post offices in Sikkim
Sikkim has 1 head post office. Each keeps the accounts for the sub and branch offices of its postal division.
How Sikkim PIN codes are numbered
- 73: 19 PINs (all of the state's)
The first digit, 7, places Sikkim in India Post's Eastern region. The third digit narrows it to a sorting district, and the last three digits to the post office that delivers the mail.
Sikkim's post offices at a glance
- Head offices: 1; sub offices: 22; branch offices: 189 (89% of the total)
- Deliver mail: 208 offices (98%); the rest are counter-only
- Postal divisions: 1
- Most post offices: East District district, with 51
Frequently asked questions
How many PIN codes are there in Sikkim?
19 PIN codes, covering 212 post offices in 6 districts.
Which district in Sikkim has the most PIN codes?
East District, with 7 PIN codes and 51 post offices.
What do Sikkim PIN codes start with?
With 73. The first digit, 7, is India Post's Eastern region; the first two digits identify the postal circle.
Sources
Last checked on 6 October 2026. PIN codes and post offices are from India Post’s directory on data.gov.in. Post offices are sometimes opened, merged or renamed; check with India Post before relying on a PIN for an official form.