Swiss Municipality Merger Tool

Valentin Knechtl



In Switzerland, the landscape of municipalities is changing rapidly mainly due to mergers. The Swiss Municipality Merger Tool (SMMT) automatically detects these mutations and maps municipalities of an old state to municipalities of a new state. The aim of this vignette is to illustrate how to use the functionality of the SMMT.

How To


  1. Download & unpack the Swiss municipality inventory from the Federal Statistical Office website (
  2. Import the inventory into the workspace

Get Mapping Table

  1. Define the old state and the new state. Example:
  1. Get mapping table

Excerpt of mapping table:

bfs_nr_new name_new bfs_nr_old name_old
4021 Baden 4021 Baden
4021 Baden 4025 Daettwil


Further information