Copernal is a municipality in the province of Guadalajara, in the autonomous community of Castile-La Mancha, Spain. It lies in the central part of the country, within the comarca of La Alcarria, a region of the province known for its rolling terrain and rural character.
The municipality is very small. According to the 2004 census conducted by the Instituto Nacional de Estadística (INE), Copernal had a population of 24 inhabitants, making it one of the least populated municipalities in the province of Guadalajara.
Like many villages in this part of Castile-La Mancha, Copernal is a rural settlement whose population is concentrated in a single small nucleus. Its administrative status is that of a municipality (municipio), the basic local government unit in Spain, which in this case covers a small area and a correspondingly small resident population.