Also belonging to Oberhausen bei Kirn are the outlying homesteads of Itzebacherhof, Königshof and Schloss Wartenstein.

The latter is a Weistum (cognate with English wisdom, this was a legal pronouncement issued by men learned in law in the Middle Ages and early modern times) in which the court Schöffe (roughly "lay jurist") "Hermann von Obirnhusen" is named as a member of the Hennweiler court's council of Schöffen.

Here, the Lords of Heinzenberg, who lived at a castle in the Kellenbach valley, were responsible as Vögte for giving the law and for raising tax revenue.

In the Late Middle Ages, Oberhausen became part of the Lordship of Wartenstein and belonged to the Unteramt of Hennweiler.

Beginning in 1798, Oberhausen lay under French rule, as did all the German lands on the Rhine's left bank.

After the Congress of Vienna had grouped the village into the Kingdom of Prussia, Oberhausen remained with the same mayoralty, although the German word Bürgermeisterei was now used for it.

Over the last few decades, Oberhausen has grown from a mainly agriculturally orientated village into a modern residential community.

The municipal election held on 7 June 2009 yielded the following results:[7] Oberhausen bei Kirn's mayor is Thomas Jung.

The charge on the dexter (armsbearer's right, viewer's left) side, the lion, is a reference to the village's former allegiance to the Lords of Wartenstein.

After consent by the state archive, the Ministry of the Interior in Mainz granted approval for Oberhausen bei Kirn to bear its own arms on 29 December 1965.

[9] The following are listed buildings or sites in Rhineland-Palatinate's Directory of Cultural Monuments:[10] The Evangelical church with its Gothic quire with colourful painting comes from the latter half of the 15th century.