Aranda de Duero is a city and municipality located in the province of Burgos within the Castile and León region of Spain. It is situated at the confluence of the Douro and Arandilla rivers in the southern part of the province, positioned at the intersection of the A-1 and A-11 roads.
The municipality has a population of approximately 33,000 residents. It serves as the capital of the Ribera del Duero wine region and is recognized as the third largest industrial center in the Castile and León region.