The nearest middle centre is Wittlich to the south.

Beginning in 1794, Diefenbach lay under French rule.

In 1814 it was assigned to the Kingdom of Prussia at the Congress of Vienna.

The municipal council is made up of 6 council members, who were elected by majority vote at the municipal election held on 7 June 2009, and the honorary mayor as chairman.

In Ürzig is a railway station on the Moselstrecke (Moselle Line).