Novillas is a municipality in the province of Zaragoza, in the autonomous community of Aragon, Spain. It is located in the Ebro river valley in northeastern Spain, within the comarca of Campo de Borja.
According to the 2004 census carried out by Spain's National Statistics Institute (INE), the municipality had a population of 667 inhabitants. Like many small municipalities in rural Aragon, Novillas is characterised by a low population density and a compact village settlement surrounded by agricultural land.
The surrounding area is known for its farmland and its position along the Ebro, one of the Iberian Peninsula's principal rivers. The municipality's small size means its administration and public services are typical of a rural Aragonese council.