CH Switzerland Major Regions Postal Code Details
🏛️ Aarau · Argovia
5000
Aarau
5032
Aarau Rohr
5025
Asp
5017
Barmelweid
5023
Biberstein
5033
Buchs
5026
Densbüren
5018
Erlinsbach
5722
Gränichen
5025
Herzberg
5042
Hirschthal
5024
Küttigen
5037
Muhen
5036
Oberentfelden
5037
Obermuhen
5022
Rombach
5722
Rütihof Bei Gränichen
5025
Staffelegg
5034
Suhr
5035
Unterentfelden
📮CH Switzerland Regional Postal Code FAQ & Postal Regulations
🔢 How many digits is a Swiss postal code?
Swiss postal codes consist of 4 digits (e.g., 8001 for Zürich).
🌐 How to find a Swiss postal code?
Use the postal code lookup tool on Swiss Post's official website (www.post.ch) by entering an address or city name.
📮 Is the postal code mandatory for mail to Switzerland?
Yes! The 4-digit code is essential for mail sorting. Omission may cause delays or failed delivery.
📦 Format for international parcels?
Write the postal code and city on the last address line (e.g., 8001 Zürich), with 'SWITZERLAND' on a separate line below.