Siwang Postal Code: 57506
The official postal code for Siwang, located in Siwang Rural Municipality of Taplejung district, Koshi province, is 57506. This location is served by a Area Post Office.
Location Details
About Siwang Post Office
Siwang is part of Siwang Rural Municipality in Taplejung district, Koshi Province of Nepal. Mail for this area is handled by a Area Post Office that operates under the postal code 57506. Using the exact code helps Nepal Post sort your letters and parcels at the right facility and deliver them without delay or misrouting.
Nepal uses a five-digit postal code system. The first digit broadly indicates the region, while the full code identifies the specific post office. 57506 is the unique code assigned to the Area Post Office serving Siwang, so use it for all postal deliveries, courier bookings, and address verification for this area.
How to Address Mail to Siwang
Use this format when sending letters or parcels. A complete address with the correct postal code helps Nepal Post deliver faster.
- Double-check the postal code before dispatch.
- Add a nearby landmark and the recipient's phone number for courier deliveries.
- Keep the receipt safe for registered mail so you can track it.
6-Digit Format to Use on Foreign Websites
Nepal's official postal code for Siwang is 57506 (five digits). Some international websites, e-commerce checkouts, and online forms only accept a six-digit ZIP or postal code. In that case, simply add a leading zero in front of the official code. This is a widely accepted workaround and does not cause delivery issues, because the Nepali postal system reads the original five-digit code.