Postcode and municipality
Swiss postcodes vs municipalities: which unit you should trust
Postcodes and municipalities overlap in Switzerland, but they are not the same thing. Keeping them separate makes tax data and location data easier to read.
Municipality hub
Buttwil
Buttwil connects 1 postcode pages in Aargau. This hub shows membership, address shares, and demographic context.
- Postcodes
- 1
- Population
- 1'371
- Streets
- 41
- Effective tax rate
- 11.32%
- ESTV: single, CHF 80,000, no church tax
Postcodes in Buttwil
The municipality includes 1 split-postcode cases and 1 locality names. Use the links for address, demographic, and map context.
How this municipality cluster behaves
Buttwil connects these postcodes through one administrative structure.
For ESTV tax year 2024, the standard scenario produces CHF 9'052 total tax, or 11.32% effective.
Related municipality hubs
Blog
Guides for comparing Buttwil
These articles explain how to read postcode, municipality, and demographic data for relocation or comparison work.
Postcode and municipality
Postcode or Municipality: What Are You Comparing?
Why treating a postcode map like a political map is a massive mistake, and how to read the data correctly.
Cantonal taxes
How to compare Swiss tax burden by postcode
A reliable comparison keeps the ESTV scenario fixed and checks which municipality supplies the tax result shown for each postcode.
Moving and taxes
How to compare postcodes before you move (and when to stop)
How to read a postcode without giving it more weight than it deserves. We show which signals help and when you should move on to an official check.
Moving and taxes
Moving from Lausanne to the suburbs: Which postcodes make sense for taxes?
Leaving Lausanne for the surrounding municipalities is rarely just a tax decision. When rates are nearly identical, the real choice is about commuting and infrastructure.
Cantonal taxes
Large postcodes with low taxes: Where to look
You don't always have to move to a tiny village to save on taxes. Some large postcodes combine great infrastructure with a surprisingly low tax bill.