Listed in a directory of the Sankt Goar Monastery's revenue compiled by Benedictine monks is a service rendered by the settlement of Pfalzfeld.

An 820 donation document from King Louis the Pious to the Sankt Goar Monastery included a great forested area west of the Rhine stretching to the Baybach.

This leads to the conclusion that Pfalzfeld must have been founded sometime between the dates of these two documents, 820 and 893, as a newly cleared patch of the forest.

The German blazon reads: In Gold ein aufgerichteter roter Obelisk, der einen Menschenkopf mit Flügelhaube und umgebendem Rankenwerk zeigt.

The municipality's arms might in English heraldic language be described thus: Or an obelisk showing a human head with a winged bonnet beset with scroll ornaments gules.

The tinctures refer to the Lower County of Katzenelnbogen, to which Pfalzfeld belonged until a definitive end was put to the Holy Roman Empire.