Castaño del Robledo is a town and municipality located in the province of Huelva, Spain. According to the 2005 census, it has a population of 205 inhabitants and covers a 13 km2 (5.0 sq mi) area (15.8 people/km²). It sits at an altitude of 738 m (2,421 ft) above sea level, and is 113 km (70 mi) from the capital.