CH Switzerland Major Regions Postal Code Details

🏛️ Aarau · Aargau
5004
Aarau
Aarau aarau aargau 5004 Switzerland
5032
Aarau Rohr
Aarau Rohr aarau aargau 5032 Switzerland
5025
Asp
Asp aarau aargau 5025 Switzerland
5017
Barmelweid
Barmelweid aarau aargau 5017 Switzerland
5023
Biberstein
Biberstein aarau aargau 5023 Switzerland
5033
Buchs
Buchs aarau aargau 5033 Switzerland
5026
Densbüren
Densbüren aarau aargau 5026 Switzerland
5018
Erlinsbach
Erlinsbach aarau aargau 5018 Switzerland
5722
Gränichen
Gränichen aarau aargau 5722 Switzerland
5025
Herzberg
Herzberg aarau aargau 5025 Switzerland
5042
Hirschthal
Hirschthal aarau aargau 5042 Switzerland
5024
Küttigen
Küttigen aarau aargau 5024 Switzerland
5037
Muhen
Muhen aarau aargau 5037 Switzerland
5036
Oberentfelden
Oberentfelden aarau aargau 5036 Switzerland
5037
Obermuhen
Obermuhen aarau aargau 5037 Switzerland
5022
Rombach
Rombach aarau aargau 5022 Switzerland
5722
Rütihof Bei Gränichen
Rütihof bei Gränichen aarau aargau 5722 Switzerland
5025
Staffelegg
Staffelegg aarau aargau 5025 Switzerland
5034
Suhr
Suhr aarau aargau 5034 Switzerland
5035
Unterentfelden
Unterentfelden aarau aargau 5035 Switzerland

📋 Switzerland Address and Delivery Guidance

📮
Use a Complete Delivery Address:

Include the recipient name, building or street address, locality, region where applicable, postal code when the destination uses one, and the destination country or territory.

🌍
Follow Local Address Conventions:

Use the language, character set and address order requested by the recipient, official postal operator or carrier. Do not assume every destination uses the same postal-code format.

✅
Verify Before Dispatch:

Confirm the postal code, service coverage and any customs or carrier requirements with the recipient and the relevant official postal operator before shipping.

💡
Delivery Information Is Context-Specific:

Postal codes help routing only in territories that use them. Accurate recipient details remain essential for delivery in every destination.

Postal information, sources and verification

Use this page as a routing reference and confirm the complete address, postal code format and delivery restrictions with the relevant official postal operator or carrier before dispatch.

Editorial and service accountability

This postal-code reference is maintained by the 56ok.com logistics-content team for international shipping preparation. It is reviewed against publicly available postal-operator information; it is not an official postal authority and does not replace carrier or customs instructions.

This reference is maintained as postal and carrier information changes. Need a correction? Contact our team.

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📮Switzerland Postal FAQ and delivery guidance

🔢 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.