 After the Second World War, the village at first lay in the "Regierungsbezirk" of Koblenz in the then newly founded state of Rhineland-Palatinate.In the course of administrative restructuring in this state in 1968, the "Amt" of Burglichtenberg was dissolved on 1 January 1972.Ruthweiler passed to the newly founded "Verbandsgemeinde" of Kusel-Altenglan and to the Kusel district, in which it remains today.