Fontanar is a municipality situated in the province of Guadalajara within the autonomous community of Castile-La Mancha, Spain. It serves as a local administrative area characterized by its rural setting in the central part of the Iberian Peninsula.
According to data from the 2004 census conducted by the National Statistics Institute (INE), the municipality has a population of 1,263 inhabitants. The town is defined by its location within the Guadalajara province and its established residency figures.