643101 PIN Code: Coonoor (The Nilgiris)
643101 is the PIN code of Coonoor in The Nilgiris district, Tamil Nadu. Mail for 643101 is delivered by Coonoor H.O.
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Coonoor
643101 at a glance
- PIN code
- 643101
- Areas
- Coonoor
- District
- The Nilgiris
- State
- Tamil Nadu
- Postal circle
- Tamilnadu Circle
- Region / division
- Western Region Coimbatore · Nilgiris Division
- Head office
- Coonoor H.O (in this PIN)
- Delivery office
- Coonoor H.O
- Post offices
- 1 (1 head office)
- Type of area
- Not known
- Approximate area
- about 3.1 km² (3.0 km east-west, 2.6 km north-south)
- Middle of the area
- 11.34822, 76.79846
- DIGIPIN of the middle
- MC8293JCJC
- Sorting district code
- 643 (shared by 46 PIN codes; The Nilgiris)
- Nearest PIN codes
- 643205 (0.5 km), 643207 (0.5 km), 643006 (0.5 km), 643253 (0.5 km)
Sources: India Post's All India Pincode Directory (list dated 3 Oct 2025), OpenStreetMap. Area and middle point are approximate, from our map.
Where PIN 643101 is
- PIN 643101
- Neighbouring PIN codes (tap one)
- Post office that delivers mail
- Other post offices (counter only)
- Main roads, railways and water
An approximate shape, not an official boundary: India Post doesn't publish PIN boundary maps. Each spot takes the PIN of the nearest post office or address mapped on OpenStreetMap (15 carry 643101). Blank parts have no known address nearby. Roads, railways and water: © OpenStreetMap contributors.
About the 643101 area
643101 is a PIN code in The Nilgiris district, Tamil Nadu. India Post lists 1 post office under it: Coonoor H.O. Mail for addresses with this PIN is delivered by Coonoor H.O.
In India Post's structure, 643101 belongs to the Nilgiris Division, part of the Western Region Coimbatore of the Tamilnadu Circle. Coonoor H.O, the head office, is itself in this PIN. The first three digits, 643, are the sorting district code that 46 PIN codes share, covering The Nilgiris.
The middle of the 643101 area is at 11.3482° N, 76.7985° E (DIGIPIN MC8293JCJC), and the area is roughly 3.1 km² on our map. The closest PIN codes are 643205 (Cherambadi, 0.5 km east), 643207 (Devarshola, 0.5 km east) and 643006 (Finger Post, 0.5 km east).
The Nilgiris district has 46 PIN codes. The one with the most post offices is 643217 (Kotagiri, 15); 643101 has 1. The one with the most villages is 643231 (Wellington, 23).
Post offices with PIN code 643101
| Post office | Type and mail delivery |
|---|---|
| Coonoor H.O | Head office Delivers |
"Delivers" means postmen from that office bring mail to addresses with this PIN. Head offices run a postal division's accounts; sub offices serve towns; branch offices are small, mostly village offices working under a sub office. More on the types of post offices.
What the digits of 643101 mean
A letter to 643101 is sorted in four steps, one for each part of the code (all zones and circles):
- 1 · Zone643101
Southern zone: Tamil Nadu, Kerala
- 2 · Postal circle643101
Tamilnadu Circle
- 3 · Sorting district643101
Sorting district covering The Nilgiris
- 4 · Delivery office643101
Delivered by Coonoor H.O
Localities in the 643101 area
Neighbourhoods and places named on OpenStreetMap whose nearby mapped addresses mostly carry PIN 643101. Places on an edge can also fall in a neighbouring PIN.
PIN codes near 643101
Distances are as the crow flies, between the middles of each PIN's mapped addresses and post offices.
How to write an address with PIN 643101
Name House / flat number, street Coonoor, The Nilgiris Tamil Nadu - 643101
Write the 6 digits in full at the end, after the state. Use the area name that matches your street, from the post offices above. How to write an Indian address.
Questions about PIN 643101
Which area has the PIN code 643101?
643101 is the PIN code of Coonoor in The Nilgiris district, Tamil Nadu.
Which district and state is 643101 in?
The Nilgiris district in Tamil Nadu, in India Post's Tamilnadu Circle (Nilgiris Division).
How many post offices use 643101?
1 post office: Coonoor H.O.
Which post office delivers mail for 643101?
Coonoor H.O delivers mail for this PIN.
What is the head office for 643101?
Coonoor H.O, which is in this PIN.
What are the PIN codes near 643101?
643205 (Cherambadi, 0.5 km), 643207 (Devarshola, 0.5 km), 643006 (Finger Post, 0.5 km), 643253 (Kolapalli, 0.5 km) and 643239 (Konnachal, 0.5 km), measured between the middles of the areas.
What is the DIGIPIN of the 643101 area?
MC8293JCJC is the DIGIPIN of the middle of the area. A DIGIPIN marks a spot about 4 metres wide, so every house has its own; use the DIGIPIN tool for your exact spot.
Is 643101 the PIN code of my address?
If you are at the address, tap "Is this my PIN code?" at the top of this page. Otherwise check that your street's area matches one of the post offices or localities listed here. For anything important, confirm with your post office.
Post offices: India Post, All India Pincode Directory on data.gov.in (Government Open Data License - India), list dated 3 Oct 2025. District names are as India Post lists them and can differ from the revenue district. Not an India Post website: for anything important, confirm with your post office.
More PIN codes
All 46 PIN codes of The Nilgiris · All PIN codes of Tamil Nadu · PIN code guides · Find the PIN code of where you are