Postcode 21251
Location: Southwest Finland → Turku → Masku
1 location(s) using this postal code in Southwest Finland, Finland
About Postcode 21251
This postal code is assigned to Masku Municipality Sub-region Turku, Southwest Finland, Finland. This location-level postal code helps ensure accurate mail delivery and location identification.
Postal Code Format
Finland uses numeric postal codes with 5 digits (example: 00100). In our directory, these codes are organized from regions down to municipalities.
- 21 — Region (Southwest Finland)
- 25 — Sub-region (Turku)
- 1 — Municipality (Masku)
How to Use This Postcode 21251
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
Masku
Turku, Southwest Finland
21251
Finland
Domestic Mail
Include this postcode on all letters and packages sent within Finland.
International Mail
For international deliveries, include "Finland" on the last address line after the postcode.
Frequently Asked Questions
What area does this postcode cover?
This postcode covers Southwest Finland → Turku → Masku in Finland.
Is this a valid List Post Code?
Yes. 21251 is an active postcode for Southwest Finland → Turku → Masku in Finland. It follows the 5-character format used in this country.
How do I find the postal code for a specific address?
Search by region, sub-region, and municipality to find the correct postcode in Finland. Search Postcodes
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Useful Resources
Developer API
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Free JSON for postcode 21251.
https://api.listpostcode.com/v1/countries/FI/postcodes/21251curl -H "x-api-key: YOUR_API_KEY" \
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