 The municipal area is characterized by woodland, meadows and the species-rich river Glan, which flows through, among other things, the “Heimerbrühl” bird conservation area.Nanzdietschweiler is the biggest municipality in the "Verbandsgemeinde" by land area, and ranks second in population after Herschweiler-Pettersheim.Nanzdietschweiler arose out of the three centres of Dietschweiler, Nanzweiler and Nanzdiezweiler, each of whose locations is well defined.