Riodeva is a municipality in the province of Teruel, in the autonomous community of Aragon, Spain. It is a small, sparsely populated settlement typical of the rural interior of the region.
According to the 2004 census conducted by Spain's National Statistics Institute (INE), Riodeva had a population of 191 inhabitants. That figure reflects the modest scale of the community and its place among the many low-population municipalities of Teruel province.