 In 1968, in the course of administrative restructuring, the "Amt" of Grumbach was dissolved, and Merzweiler was then transferred to the Kusel district, in which it remains today.In 1972, Merzweiler passed to the then newly founded "Verbandsgemeinde" of Lauterecken, and at the same time from the "Regierungsbezirk" of Koblenz to the newly founded "Regierungsbezirk" of Rheinhessen-Pfalz, which has, however, since been dissolved.Until a few decades ago, the greater part of Merzweiler's population earned its livelihood mainly at agriculture.