Villalba de Rioja is a municipality in the autonomous community of La Rioja (Spain), on the southern slopes of the mountains Obarenes. It borders the provinces of Alava and Burgos. Haro 5 km far from the LR-401. By the municipality elapses Esperamalo stream tributary of the Ebro river. The municipality covers an area of 8.96 square kilometres (3.46 sq mi) and as of 2011 had a population of 150 people.