Privacy Policy
Last Updated: May 2, 2026
Introduction
This Privacy Policy explains how Swiss Zip Lookup collects, uses, and protects your personal data when you use our website. We are committed to protecting your privacy and ensuring compliance with the General Data Protection Regulation (GDPR) and Swiss data protection laws.
By using this website, you agree to the collection and use of information in accordance with this policy. If you do not agree with our policies and practices, please do not use our website.
Data We Collect
We collect minimal personal data necessary to provide and improve our services:
- Search and location: handled entirely in your browser. Your searches and any location lookup are not sent to us, stored, or logged.
- Usage data: aggregate, anonymous page metrics via cookieless analytics (PostHog EU) — pages viewed, performance, and which interactive features are used, with no cross-site tracking and no cookies.
- Technical data: IP address, browser type, device type, and operating system
- Approximate region: our hosting provider may infer a coarse, city-level region from your IP address to serve the site. The optional location feature runs in your browser and its coordinates never leave your device.
How We Use Your Data
We use the collected data for the following purposes:
- To provide and maintain our service
- To improve user experience and website functionality
- To analyze usage patterns and optimize performance
- To detect and prevent technical issues or abuse
We Never Sell Your Data
We do not sell, rent, or share your personal data with third parties for marketing purposes. Your data is used solely to operate and improve this service.
Cookies and Tracking
This website sets no cookies and shows no consent banner. Analytics are cookieless and privacy-friendly (PostHog EU): only aggregate, anonymous usage is measured, never linked to you across sites.
Location data
The optional "use my location" feature reads your device location only in your browser, to look up your postal code, municipality and canton. Your coordinates are processed entirely on your device and are never transmitted, stored, or logged. Only an anonymous accuracy bucket and confidence level may be recorded in cookieless analytics.
Saved income on the tax chart
If you pin an income on a municipality’s tax-burden chart, or type your own gross salary, that figure is saved in your browser’s local storage so the chart still shows it on your next visit. It stays on your device: it is never sent to us, and it never appears in the page’s machine-readable data. For analytics we record only a broad band (for example “100–150k”), never the amount you entered, so we can see which incomes the chart is used for without that being traceable to you. Clearing your browser storage removes the saved figure.
Public Data Sources
The postal code, municipality, and demographic data displayed on this website comes from official Swiss government open data sources. This public data is not subject to GDPR as it does not constitute personal data:
- swisstopo - Swiss Federal Office of Topography
- BFS/OFS - Swiss Federal Statistical Office
- Swiss Post - Swiss Post postal code database
Your GDPR Rights
Under GDPR, you have the following rights regarding your personal data:
Right to Access
You have the right to request a copy of the personal data we hold about you.
Right to Deletion (Right to be Forgotten)
You can request deletion of your personal data. Note that we retain minimal data, and most usage data is anonymized or aggregated.
Right to Object
You have the right to object to processing of your personal data for specific purposes, such as analytics.
Right to Data Portability
You can request your personal data in a structured, machine-readable format for transfer to another service.
Data Security
We implement appropriate technical and organizational measures to protect your personal data against unauthorized access, alteration, disclosure, or destruction. Our website uses HTTPS encryption, and we follow industry best practices for data security. However, no method of transmission over the Internet is 100% secure.
Contact Us
For privacy-related questions, to exercise your data-protection rights or to report a concern, write to us at info@municipality.ch
Changes to This Privacy Policy
We may update this Privacy Policy from time to time to reflect changes in our practices or legal requirements. We will notify users of significant changes by updating the 'Last Updated' date at the top of this page. We encourage you to review this Privacy Policy periodically.