 Ruthweiler borders in the northeast on the municipality of Körborn, in the south on the town of Kusel (constituent communities of Diedelkopf and Bledesbach), in the west on the municipality of Pfeffelbach and in the northwest on the municipality of Thallichtenberg.Also belonging to Ruthweiler is an outlying hospital complex, the "Krankenhaus Kusel".Ruthweiler was originally a linear village (or by some definitions, a “thorpe”) with the built-up area on the brook's right bank.