Niederkumbd is an Ortsgemeinde, which is a type of municipality belonging to a collective municipality known as a Verbandsgemeinde. It is located in the Rhein-Hunsrück-Kreis district within the state of Rhineland-Palatinate, Germany.
The municipality is part of the Verbandsgemeinde Simmern-Rheinböllen, which has its administrative seat in the town of Simmern.