Lucena de Jalón is a municipality in the province of Zaragoza, in the autonomous community of Aragon, Spain. It is located in the Jalón river valley, from which it takes part of its name.
According to the 2004 census carried out by Spain's National Statistics Institute (INE), the municipality had a population of 252 inhabitants. This small population figure reflects the modest size typical of many rural municipalities in the Zaragoza province.