Casas Bajas is a municipality in the comarca of Rincón de Ademuz, in the Valencian Community of Spain. It is one of several small towns that make up the Rincón de Ademuz, a comarca located in the northwestern part of the Valencia region.
The municipality is part of the Valencian Community, Spain's autonomous community along the country's eastern Mediterranean coast. The Rincón de Ademuz is a distinct enclave within that community, separated from the rest of the Valencia region by territory belonging to neighbouring provinces.
Casas Bajas is a rural municipality, typical of the small settlements found throughout the Rincón de Ademuz. As with other towns in the comarca, its administrative identity is defined by its status as a municipality within the Valencian Community.