Corcos is a municipality in Spain, located in the province of Valladolid within the autonomous community of Castile and León. It is a small, rural settlement in the country's northern interior.
According to the 2004 census conducted by Spain's National Statistics Institute (INE), the municipality had a population of 258 inhabitants. This figure reflects the modest size typical of many villages in the sparsely populated countryside of Castile and León.