sentences:  Grumbach borders in the north on the municipality of Kappeln, in the east on the town of Lauterecken, in the south on the municipality of Hausweiler, in the west on the municipality of Herren-Sulzbach and in the northwest on the municipality of Merzweiler.Grumbach also meets the municipality of Buborn at a single point in the southwest, and has an exclave to the northeast that borders in the northeast on the municipality of Medard, in the southeast and southwest on the town of Lauterecken and in the northwest on the municipality of Kappeln.Also belonging to Grumbach is the outlying homestead of Windhof.