North of Niederbrombach are the Hömelskopf and the Heidkopf, to the east are the Pferdshöhe and the Brombacher Höhe, to the south are the Rothenbachberg, the Winnenberg and the Hochkastell and finally, to the west are the Kleb and the Bauterskopf.

Brombach was the main centre of the Electoral-Trier holdings (later Sponheim holdings) south of the Idar Forest, and within the high court region and the Amtsbezirk, Brombach had become and remained the main centre of its own feudal domain (Großbann), its own Pflege (literally “care”, but actually a local geopolitical unit) and its own parish.

Secular and ecclesiastical holdings matched one another so fully that in the 18th century, the term “parish” was also used to designate the administrative region.

[6] The German blazon reads: Unter rot-silbern geschachtem Schildhaupt in Gold zwei rundbogige schwarze Arkaden.

The municipality's arms might in English heraldic language be described thus: Or a double arch sable, the chief countercompony gules and argent.

The chief is a reference to the village's former allegiance to the “Hinder” County of Sponheim, which bore arms chequy gules and argent.