About Postcode 028-4304
This postal code is assigned to Iwate Machi District Municipality Iwate Gun, Iwate Ken, Japan. This location-level postal code helps ensure accurate mail delivery and location identification.
Postal Code Format
Japan uses numeric postal codes with 7 digits (example: 0600000). In our directory, these codes are organized from prefectures down to districts.
- 02 — Prefecture (Iwate Ken)
- 8- — Municipality (Iwate Gun)
- 43 — District (Iwate Machi)
How to Use This Postcode 028-4304
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
Iwate Machi
Iwate Gun, Iwate Ken
028-4304
Japan
Domestic Mail
Include this postcode on all letters and packages sent within Japan.
International Mail
For international deliveries, include "Japan" on the last address line after the postcode.
Frequently Asked Questions
What area does this postcode cover?
This postcode covers Iwate Ken → Iwate Gun → Iwate Machi in Japan.
Is this a valid List Post Code?
Yes. 028-4304 is an active postcode for Iwate Ken → Iwate Gun → Iwate Machi in Japan. It follows the 7-character format used in this country.
How do I find the postal code for a specific address?
Search by prefecture, municipality, and district to find the correct postcode in Japan. Search Postcodes
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Useful Resources
Developer API
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Free JSON for postcode 028-4304.
https://api.listpostcode.com/v1/countries/JP/postcodes/028-4304curl -H "x-api-key: YOUR_API_KEY" \
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