Villegas is a municipality located in the province of Burgos, Castile and León, Spain. It is in the valley of the River Brullés. According to the 2…Villegas is a municipality located in the province of Burgos, Castile and León, Spain. It is in the valley of the River Brullés. According to the 2004 census, the municipality had a population of 116 inhabitants. Villegas has suffered from demographic decline. This is particularly severe in the case of the locality of Villamorón, a neighbouring village which has been united with Villegas for centuries. It is now effectively abandoned, having only one resident.