Bad Sobernheim lies on the middle Nahe about halfway between the district seat of Bad Kreuznach (roughly 20 km southwest of that town) and the gemstone town of Idar-Oberstein. Looming to the north is the Hunsrück, and to the south, the North Palatine Uplands. The municipal area stretches as far as the Soonwald.
Bad Sobernheim is situated on the middle Nahe, roughly halfway between the administrative center of Bad Kreuznach (approximately 20 kilometers southwest of that town) and the gemstone city of Idar-Oberstein. The Hunsrück mountain range looms to the north, while the North Palatine Uplands are located to the south. The municipality extends as far as the Soonwald forest.