Dierfeld has only nine inhabitants and is thereby the least populous municipality in all of Germany (as of 2021). The municipality’s head and mayor is Gerhard von Greve-Dierfeld.
The municipal council is made up of 6 council members (this, of course, means that only two people in the municipality arenot on council), who were elected bymajority vote at the municipal election held on 7 June 2009, and the honorary mayor as chairman.[3]
At elections to the European Parliament, the Bundestag and the Landtag, a common voting area has been formed with Manderscheid to ensure that ballots are kept secret.[4]
In 2006, the municipality had the highest commercial tax rates in Rhineland-Palatinate. This was resolved by the mayor, who is also the owner of a tree nursery. The municipality is debt-free.[5]