On the map below, each municipality is shown with a color that represents its voting habits, from 1981 until
today. Two municipalities with similar colors have similar voting habits.
Observe for instance the differences between urban centers and rural areas, or between the different
On the right part above, each municipality is shown by a dot. This representation is obtained directly
from all the results to national-level issue votes, using a dimensionality reduction technique. Overall,
two municipalities are close to each other in this space if they vote similarly. The axes capture the
topics and trends that most divided the municipalities during past votes. The first axis (horizontal)
mainly represents themes associated to the openness of Switzerland, as well as social insurances. The
second axis (vertical) mainly represents themes associated to transports, environment and agriculture.
Below, we provide interpretations of these axes in terms of the most important votes that they
The drop-down menu allows you to choose the data used to color the dots that represent the
municipalities. For example, one can observe that there is a strong link between the population density
and the voting habits.
On the left side above, the color of each municipality is directly determined by its position in the
two-dimensional space on the right side. You can find out more information about our data and procedures
in this article.
Composition of the axes
In the following tables, we show the most important votes represented by the two axes. The importance of each
vote, illustrated on the right side of the list, indicates on which side of the axis the yes is located. If
a vote has its importance directed to the right, it means that the municipalities that voted yes on this
issue will tend to be represented on the right (for the horizontal axis), or at the top (for the vertical
axis). Conversely, municipalities voting yes to a vote having its importance directed to the left will tend
to be represented more on the left (for the horizontal axis), or at the bottom (for the vertical axis).
Composition of the horizontal axis:
Composition of the vertical axis: