Postcode 4203
Location: Kanton Basel Landschaft → Bezirk Laufen → Grellingen
1 location(s) using this postal code in Kanton Basel Landschaft, Switzerland
About Postcode 4203
This postal code is assigned to Grellingen Municipality District Bezirk Laufen, Kanton Basel Landschaft, Switzerland. This location-level postal code helps ensure accurate mail delivery and location identification.
Postal Code Format
Switzerland uses numeric postal codes with 4 digits (example: 8001). In our directory, these codes are organized from cantons down to municipalities.
- 42 — Canton (Kanton Basel Landschaft)
- 03 — District (Bezirk Laufen)
- — Municipality (Grellingen)
How to Use This Postcode 4203
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
Grellingen
Bezirk Laufen, Kanton Basel Landschaft
4203
Switzerland
Domestic Mail
Include this postcode on all letters and packages sent within Switzerland.
International Mail
For international deliveries, include "Switzerland" on the last address line after the postcode.
Frequently Asked Questions
What area does this postcode cover?
This postcode covers Kanton Basel Landschaft → Bezirk Laufen → Grellingen in Switzerland.
Is this a valid List Post Code?
Yes. 4203 is an active postcode for Kanton Basel Landschaft → Bezirk Laufen → Grellingen in Switzerland. It follows the 4-character format used in this country.
How do I find the postal code for a specific address?
Search by canton, district, and municipality to find the correct postcode in Switzerland. Search Postcodes
Found incorrect info for 4203?
Useful Resources
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Free JSON for postcode 4203.
https://api.listpostcode.com/v1/countries/CH/postcodes/4203curl -H "x-api-key: YOUR_API_KEY" \
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