Torreblanca is a municipality in the province of Castellón, Valencian Community, Spain. The town is located south of the Serra d'Irta mou…Torreblanca is a municipality in the province of Castellón, Valencian Community, Spain. The town is located south of the Serra d'Irta mountain range close to the Mediterranean Sea. Torreblanca is located 36 km ENE of the town of Castellón de la Plana, on the Costa del Azahar.