Postcode 17-307
Location: Podlasie → Powiat Siemiatycki → Mielnik
23 location(s) using this postal code in Poland
Counties with postcode 17-307
About Postcode 17-307
This postal code is assigned to Mielnik Gmina County Powiat Siemiatycki, Podlasie, Poland. This location-level postal code helps ensure accurate mail delivery and location identification.
Postal Code Format
Poland uses numeric postal codes with 5 digits (example: 00-001). In our directory, these codes are organized from voivodeships down to gminas.
- 17 — Voivodeship (Podlasie)
- -3 — County (Powiat Siemiatycki)
- 07 — Gmina (Mielnik)
How to Use This Postcode 17-307
When sending mail or packages to this area, use the postal code below to ensure accurate and timely delivery.
Address format example:
Recipient Name
House #, Street Name
Mielnik
Powiat Siemiatycki, Podlasie
17-307
Poland
Domestic Mail
Include this postcode on all letters and packages sent within Poland.
International Mail
For international deliveries, include "Poland" on the last address line after the postcode.
Frequently Asked Questions
What area does this postcode cover?
This postcode covers Podlasie → Powiat Siemiatycki → Mielnik in Poland.
Is this a valid List Post Code?
Yes. 17-307 is an active postcode for Podlasie → Powiat Siemiatycki → Mielnik in Poland. It follows the 5-character format used in this country.
How do I find the postal code for a specific address?
Search by voivodeship, county, and gmina to find the correct postcode in Poland. Search Postcodes
Found incorrect info for 17-307?
Useful Resources
Developer API
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Free JSON for postcode 17-307.
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