Medina de Rioseco is a municipality situated in the province of Valladolid, which is part of the autonomous community of Castile and León in Spain. This historic town serves as a local administrative and social center within the region, reflecting the traditional settlement patterns of the Spanish interior.
According to data from the 2011 census conducted by the INE, the municipality recorded a population of 4,967 inhabitants. The town remains a notable geographical entity within the broader context of the Spanish landscape, maintaining its identity as a distinct municipal jurisdiction.