Districts in Assam
| District | PIN codes | Post offices |
|---|---|---|
| Bajali | 6 | 26 |
| Baksa | 18 | 130 |
| Barpeta | 20 | 163 |
| Biswanath | 16 | 97 |
| Bongaigaon | 10 | 69 |
| Cachar | 51 | 283 |
| Charaideo | 12 | 73 |
| Chirang | 9 | 64 |
| Darrang | 13 | 74 |
| Dhemaji | 10 | 95 |
| Dhubri | 17 | 133 |
| Dibrugarh | 28 | 219 |
| Dima Hasao | 9 | 78 |
| Goalpara | 12 | 106 |
| Golaghat | 20 | 148 |
| Hailakandi | 14 | 98 |
| Hojai | 10 | 76 |
| Jorhat | 29 | 188 |
| Kamrup | 31 | 205 |
| Kamrup Metro | 44 | 79 |
| Karbi Anglong | 13 | 97 |
| Karimganj | 27 | 159 |
| Kokrajhar | 16 | 110 |
| Lakhimpur | 17 | 173 |
| Majuli | 7 | 57 |
| Marigaon | 11 | 102 |
| Nagaon | 28 | 213 |
| Nalbari | 26 | 148 |
| Sivasagar | 23 | 173 |
| Sonitpur | 27 | 126 |
| South Salmara Mancachar | 6 | 32 |
| Tinsukia | 31 | 142 |
| Udalguri | 17 | 101 |
| West Karbi Anglong | 6 | 33 |
Head post offices in Assam
Assam has 20 head post offices. Each keeps the accounts for the sub and branch offices of its postal division.
- Barpeta781301
- Dhubri783301
- Dibrugarh786001
- Diphu782460
- Goalpara Head Post Office783101
- Golaghat785621
- Guwahati G.P.O.781001
- Guwahati University781014
- Hailakandi788151
- Jorhat785001
- Kokrajhar783370
- Mangaldoi784125
- Nagaon782001
- Nalbari781335
- North Lakhimpur787001
- Silchar788001
- Sivasagar785640
- Sribhumi788710
- Tezpur784001
- Tinsukia786125
How Assam PIN codes are numbered
- 78: 578 PINs (all of the state's)
The first digit, 7, places Assam 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.
Assam's post offices at a glance
- Head offices: 20; sub offices: 603; branch offices: 3,447 (85% of the total)
- Deliver mail: 3,973 offices (98%); the rest are counter-only
- Postal divisions: 9
- Most post offices: Cachar district, with 283
Frequently asked questions
How many PIN codes are there in Assam?
578 PIN codes, covering 4,070 post offices in 34 districts.
Which district in Assam has the most PIN codes?
Cachar, with 51 PIN codes and 283 post offices.
What do Assam PIN codes start with?
With 78. 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.