The post-Napoleonic administrative structure remained unchanged until the end of the First World War, after which the district of Homburg was grouped into the British- and French-occupied Saar. The canton of Waldmohr was grouped into the newly founded Free State of Bavaria, thus remaining under German sovereignty within the new Weimar Republic. The canton of Waldmohr belonged, with an administrative outpost, to the "Bezirksamt" (district) of Kusel. In 1940, this Waldmohr administrative outpost was dissolved and merged into the district of Kusel. On 1 April 1948, under Mayor Alfred Pfaff, Dunzweiler was demerged from the municipality of Waldmohr, thus becoming self-administering. This was followed on 1 June by a registry office. Precisely a year later, on 1 June 1949, yet another mine tunnel was dug, this time with monies from the state government. This, however, like the others, ended up being shut down after taking a long time to build and yielding little in the way of returns. A further venture into mining, involving a test bore, was shelved by the "Bundesregierung", even though an amount of 100,000 DM had already been approved for the project. No mining work has been done since. By 1954, there were 380 households in Dunzweiler and 1,086 persons. The following businesses were also to be found: