- PIN code
- 685618
- Main post office
- Surianalle (sub office)
- District
- Idukki
- State
- Kerala
- Postal division
- Idukki
- Region and circle
- Kochi Region, Kerala circle
- Delivery
- Delivery PIN (3 of 3 offices deliver)
- Location
- Open on a map (10.052, 77.196)
Post offices with PIN 685618
| Post office | Type | Delivery |
|---|---|---|
| Surianalle | Sub office | Delivers mail |
| Chinnakanal | Branch office | Delivers mail |
| Sinkukandam | Branch office | Delivers mail |
685618 covers 0 head offices, 1 sub office and 2 branch offices.
What the digits of 685618 mean
- 6: India Post's Southern region, which covers Kerala, Lakshadweep, Puducherry and Tamil Nadu (3,512 PINs).
- 68: the Kerala postal circle; 656 PINs start with 68.
- 685: the sorting district, shared by 53 PINs in 1 district.
- 618: the delivery post office within it, Surianalle.
Head post office for 685618
The post offices with this PIN belong to the Idukki postal division, whose head offices are listed below. Money orders, savings accounts and complaints that a sub or branch office cannot settle go to the head office.
- Kattappana head post office: 685508
- Thodupuzha head post office: 685584
Nearby PIN codes in Idukki
- Santhanpara685619
- Mattuppatti685616
- Maraiyur685620
- Ellapatti685615
- Talliar685614
- Devikulam685613
- Munnar685612
- Thankamany685609
Writing an address with 685618
Put the PIN on the last line, after the town and state, so the sorting machines and postmen can read it:
Name House number, street Surianalle post office Idukki, Kerala – 685618
Frequently asked questions
Which post office has PIN code 685618?
3 post offices share it: Surianalle, Chinnakanal and Sinkukandam, in Idukki district, Kerala.
Is 685618 a delivery PIN code?
Yes. All 3 of its post offices deliver mail; letters addressed to 685618 are delivered.
Which district is 685618 in?
Idukki district, Kerala. It is in the Idukki postal division (Kochi Region) of the Kerala postal circle.
What is the head post office for 685618?
The Idukki postal division's head offices are Kattappana (685508) and Thodupuzha (685584).
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.